Transition from Cohabitation to Marriage. The Role of Marital Attitudes in Seven Western and Eastern European Countries


Transition from Cohabitation to Marriage

The Role of Marital Attitudes in Seven Western and Eastern European 
Countries

Zuzana Žilinčíková, Nicole Hiekel

Abstract: Using longitudinal panel data from the Generations and Gender Surveys 
on 2,847 cohabiters from seven countries, we examine the role of marital attitudes 
in the transition from cohabitation to marriage and compare the strength of this 
association between Western and Eastern Europe. We expect a positive attitude 
towards marriage to increase the likelihood of cohabiters marrying. We also expect 
the association between personal attitudes and marriage formation to be weaker 
among cohabiters from Eastern Europe, due to stronger normative pressure to mar-
ry in contexts where cohabitation is less prevalent.

In both Eastern and Western European countries, we fi nd a clear positive as-
sociation between favourable views on marriage among cohabiters and their entry 
into marriage. Contrary to our expectations, we fi nd evidence that this association is 
weaker in Western Europe. We discuss this fi nding in light of the greater postpone-
ment of marriage among Western European cohabiters, even among those with a 
positive attitude towards marriage, as well as the potentially greater signifi cance 
of life course events and transitions that infl uence their decision to marry more 
strongly than is the case for their Eastern European counterparts.

This study extends the literature on the relationship trajectories of cohabiters by 
drawing attention to the normative context that may shape cohabiters’ opportuni-
ties and constrain behavioural choice in the marriage formation process. Ultimately, 
it contributes to an understanding of the consequences of the societal diffusion of 
cohabitation in Europe.

Keywords: Marriage formation · Cohabitation · Cross-national comparison · Discrete 
time event history analysis · Generations and Gender Surveys

Comparative Population Studies
Vol. 43 (2018): 3-30 (Date of release: 17.04.2018)

Federal Institute for Population Research 2018  URL: www.comparativepopulationstudies.de
       DOI: 10.12765/CPoS-2018-04en
       URN: urn:nbn:de:bib-cpos-2018-04en4
    
    



•    Zuzana Žilinčíková, Nicole Hiekel4

1 Introduction

The need to better understand cohabiters’ attitudes, beliefs and values towards 
marriage, and the association of these with the transition to marriage, has recently 
been emphasised within life course research (Ortyl 2013; Perelli-Harris/Bernardi 
2015). The decision to marry may strongly depend on how much cohabiters per-
sonally value the institution of marriage, particularly in countries where virtually all 
unions start as unmarried cohabitation and cohabiters make similar relationship-
specifi c investments to those of married couples. The strong association between 
positive attitudes towards marriage and marriage formation that has been found 
among Swedish cohabiters (Duvander 1999; Moors/Bernhardt 2009) may, however, 
not be as evident in contexts where cohabitation is less prevalent and accepted 
because, regardless of their personal feelings about marriage, cohabiters may not 
only be stigmatised for cohabiting in the fi rst place but may also be confronted with 
social pressure to get married. 

There is great variety in Europe regarding the prevalence and acceptance of un-
married cohabitation. In Western Europe cohabitation has virtually replaced direct 
marriage as the start of a union and has become the norm in the process of union 
formation (Billari/Liefbroer 2010). The group of cohabiters may not only be more 
diverse in their marital attitudes but also face less normative pressure to marry 
quickly. In Central and Eastern Europe by contrast, cohabitation is less prevalent 
and thus entered into by a more selective part of the population, is contested by 
normative beliefs about the institution of marriage, and is often associated with 
economic disadvantage (Philipov/Dobritz 2003). We formulated the following re-
search question: Does the strength of the effect of personal attitudes towards the 
institution of marriage on cohabiters’ transition to marriage differ in high and low 
diffusion contexts of cohabitation? 

Our study contributes to the literature in three important ways. First, we extend 
a growing body of literature aimed at understanding the consequences of the so-
cietal diffusion of unmarried cohabitation by examining the marriage trajectories 
of cohabiters. This line of research has predominantly focused on cohabiters’ life 
course stage (i.e. union duration, age, parental status) or economic opportunities 
(education, employment, race) and their association with marriage formation (Du-
vander 1999; Kennedy/Bumpass 2008; Kuo/Raley 2016; Lichter et al. 2006; Manlove 
et al. 2012; Manning/Smock 2002; McClain 2011; Musick 2007; Oppenheimer 2003; 
Perelli-Harris et al. 2012; Smock et al. 2005). We argue that by drawing attention 
to the role of attitudes in cohabiters’ marital decisions, we complement the socio-
demographic and economic explanations of behavioural choices.

Second, we add a cross-national perspective and compare this association in 
countries of low and high diffusion of unmarried cohabitation. We thus learn about 
how the context shapes the opportunities and constraints of behavioural choice in 
the process of union formation (Liefbroer/Billari 2010).

Third, we make use of prospective survey data on the partnership trajectories of 
cohabiters. This enables us to capture attitudes towards the institution of marriage 
prior to the demographic behavioural choice (marriage or continued cohabitation) 



Transition from Cohabitation to Marriage    • 5

and thereby to disentangle the reciprocal association between selection and expo-
sure effects; something that many prior studies could not effectively address due to 
the cross-sectional or retrospective nature of their data (Surkyn/Lesthaeghe 2004). 

Our data stem from seven Western, Central and Eastern European countries that 
participated in two waves of the Generations and Gender Surveys (Austria, Bulgaria, 
France, Georgia, Germany, Hungary and Russia). We studied 2,847 cohabiting men 
and women between 18 and 45 years of age. We assessed their attitude towards the 
institution of marriage in the fi rst wave of data collection and obtained information 
on their relationship status roughly three years later, when some of them had mar-
ried and others were still cohabiting or had dissolved their union.

2 Theoretical Background

Since the onset of the societal diffusion of unmarried cohabitation as early as in 
the 1970s in Scandinavia and as recently as the early 1990s in Central and Eastern 
Europe, living together without being married has become an increasingly common 
experience for European adults. The rising popularity of unmarried cohabitation 
accompanied the decline in marriage rates and the postponement of marriage to 
an older age. The increased prevalence of divorce has also been popularly framed 
within the narrative of the so-called Second Demographic Transition (SDT hereaf-
ter, Lesthaeghe 1995, 2010; van de Kaa 1987, 1993). Adherents of the SDT concept 
see ideational change as the driving force behind demographic shifts in partner-
ships and family life. At the onset of the diffusion of cohabitation, unfavourable at-
titudes towards the institution of marriage have been identifi ed as strong predictors 
of people’s choice to cohabit as an alternative to marriage (Axinn/Thornton 1992; 
Clarkberg et al. 1995; Liefbroer 1991; Manting 1996). At later stages of the SDT, co-
habitation was increasingly also adopted by people who viewed this union type as 
a stepping-stone on the way to marriage and thus held more favourable attitudes 
towards the institution. As a result, relationship trajectories prior to marriage have 
become more heterogeneous and, in many European countries, most adults have 
cohabited prior to their fi rst marriage (Perelli-Harris/Lyons-Amos 2015). Simultane-
ously, norms concerning cohabitation and marriage relaxed at the societal level, 
hence larger groups of society approved unmarried cohabitation (Treas et al. 2014). 
Cherlin (2004) coined the term “deinstitutionalisation” of marriage to describe these 
changing cultural perceptions about cohabitation and marriage and the increased 
complexity of union formation trajectories. Building on this thesis that marriage 
has become a choice rather than a necessity, and that cohabitation is becoming 
a nearly universal experience, a growing body of literature studying the marriage 
trajectories of established cohabiting unions emerged in an effort to understand the 
consequences of the changing composition of the cohabiting population in differ-
ent normative contexts of partnership and family life.



•    Zuzana Žilinčíková, Nicole Hiekel6

2.1 Marital Attitudes and the Transition to Marriage

Symbolic interaction theory (Blumer 1969) would suggest that, through interaction 
with their social environment, people form a personal attitude towards the institu-
tion of marriage that infl uences their decision whether to marry or not. Attitudes 
here refl ect a positive or negative disposition towards a given person, object or 
idea (Ajzen 1988). Ajzen’s theory of planned behaviour (Ajzen 1991) suggests that 
marital attitudes have both a direct and an indirect effect on the transition (from co-
habitation) to marriage. Direct, in that individuals tend to exhibit behaviour that is in 
line with the values they hold, and indirect in that the intention to marry that people 
form is based on their attitude towards marriage. Attitudes towards the institution 
of marriage have been widely used to explain the choice between cohabitation and 
marriage as a selection process at the moment of union formation (Axinn/Thorn-
ton 1992; Bernhardt 2004; Bradatan/Kulcsar 2008; Clarkberg et al. 1995; Gerber/
Berman 2010; Hoem et al. 2009; Liefbroer 1991; Puur et al. 2012). This research 
demonstrated that individuals who hold disapproving attitudes towards the institu-
tion of marriage choose cohabitation, whereas individuals who consider marriage 
an important social institution would rather get married directly. With the unfolding 
diffusion of unmarried cohabitation, the selection into cohabitation based on mari-
tal attitudes has become weaker and premarital cohabitation may even become a 
normative step in the union formation process (Billari/Liefbroer 2010), hence also 
widely adopted by people with a positive attitude towards marriage. It has further-
more been shown that cohabitation is not necessarily a conscious decision but 
that people “slide” instead into co-residence with their partner (Manning/Smock 
1995; Stanley et al. 2006). Apart from convenience as a reason to start living with 
a partner, qualitative work also identifi ed housing needs or the benefi ts of shared 
fi nances as frequent reasons to start cohabiting (Sassler 2004). Particularly in cases 
where cohabiters already benefi t from increased returns to scale, attitudes emerge 
as an explanation of why some cohabiters marry whereas others stay cohabiting 
or break up (Moors/Bernhardt 2009). There is however surprisingly little research 
on the infl uence of marital attitudes on cohabiters’ transition to marriage that com-
plements explanations of the transition from cohabitation to marriage based on 
economic and life stage determinants (for exceptions on the marriage formation 
of Swedish cohabiters, see Duvander 1999; Moors/Bernhardt 2009). In accordance 
with the SDT framework that explains individual behavioural choice between co-
habitation and marriage at the moment of union formation as a selection process, 
we formulate a similar hypothesis on the transition from cohabitation to marriage: 
cohabiters who hold a positive attitude towards marriage are more likely to marry 
than their counterparts who hold a negative attitude (Hypothesis 1).

2.2 Contextual variation in the association between marital attitudes 
and marriage formation

Beyond cohabiters’ personal attitudes about marriage, their marital decisions may 
also be infl uenced by what others consider to be appropriate behaviour. Buchmann 



Transition from Cohabitation to Marriage    • 7

(1989) argued that such social norms shape demographic behaviour, particularly in 
less individualised societies. European countries differ in the degree of individuali-
sation, hence the extent to which individuals experience increased freedom from 
normative constraints to conform to traditional demographic patterns enforced by 
their family of origin, the church and society at large (Beck/Beck-Gernsheim 2002). 
These constraints manifest themselves in the form of norms, more specifi cally social 
rules regarding the timing and sequencing of life events. These can be formal (i.e. 
laws that prohibit marriage below a certain age) or implicit (i.e. age norms for mar-
riage). Acts which violate these norms, called deviance, result in sanctions (Ajzen 
1991). There are two forms of sanctions, namely legal consequences and stigma-
tisation. In a context where cohabitation is not prevalent, married unions are often 
legally favoured over cohabitation, and cohabiters may also provoke derogatory 
remarks about not being married. It is argued that norms infl uence demographic 
outcomes through (anticipated) sanctions (Neugarten et al. 1965; Settersten/Mayer 
1997). Concerning the transition from cohabitation to marriage, we argue that social 
norms go beyond regarding unmarried cohabitation instead of marriage as a devia-
tion from expected behaviour; instead there is also social pressure to transform a 
cohabiting into a married union (Ajzen 1991). Treas and colleagues (2014) showed 
that although social norms concerning both premarital cohabitation and cohabita-
tion as a permanent alternative relaxed between the mid-1990 and the early 2000s 
in all European regions, norms concerning cohabitation in the absence of marital 
intentions are more disapproving, and more so in Eastern than in Western Europe. 
Hence, in their decision of whether to marry or not, cohabiters also respond to so-
cial norms independently of their own attitudes by conforming to widely accepted 
behaviour in their social environment (Liefbroer et al. 1994). Countries with different 
levels of cohabitation prevalence may thus vary in the extent to which conformism 
is widespread. We would consequently expect that cohabiters in countries with 
low cohabitation prevalence are more likely to marry even if they have a negative 
attitude towards marriage. Contrary to this, and in line with the deinstitutionalisa-
tion of marriage thesis, the marriage norm may be less rigid in countries with a high 
prevalence of cohabitation, leaving the decision whether or not to marry largely up 
to the couple themselves. Consequently, the extent to which individuals value the 
institution of marriage may be a strong predictor of the decision to marry. In sum, 
we hypothesised that the strength of the association between marital attitudes and 
marriage formation is weaker in Central and Eastern European countries (Hypoth-
esis 2).

2.3 The Context of Cohabitation in Western and Eastern European 
Countries Selected for this Study

Cohabitation has long historical antecedents in both Western and Eastern Europe 
(Kok/Leinarte 2015). The persistent differences in patterns and meanings of cohabi-
tation in Eastern and Western Europe (Bradatan 2012) have been linked to histori-
cally distinct nuptiality patterns in these two regions since the middle ages (Hajnal 
1965), as characterised by late and non-universal marriage west of an imaginary 



•    Zuzana Žilinčíková, Nicole Hiekel8

line running from St. Petersburg to Trieste, and early and universal marriage east 
of that line. 

For the purpose of this study, survey data from seven countries were selected 
from the Generations and Gender Survey Programme (refer to the data section for 
more information on available survey data and the sample selection): Austria, Ger-
many (East and West) and France, geographically located in Western Europe (WE), 
and Bulgaria, Georgia, Hungary and Russia, geographically located in Central and 
Eastern Europe (CEE). It is important to note that the selection of countries was not 
based on theoretical considerations, but on the objective of including all countries 
for which longitudinal information from two waves of data collection was available. 

In Western European countries, represented in this study by Austria, Germany 
and France, unmarried cohabitation has become a common choice for starting a co-
resident relationship, although childbearing within cohabitation is more prevalent 
in France compared to Austria and Germany (Heuveline/Timberlake 2004; Hiekel et 
al. 2014; Sobotka/Toulemon 2008). The majority of respondents (18-45 years) who 
were married in the year when the GGS data were collected had cohabited with 
their spouse before marriage (Austria: 77 percent, France: 81 percent, Germany: 
69 percent), on average about 34 months in Austria and France and 22 months in 
Germany (own calculations based on GGS data). 

Prior to the fall of the Iron Curtain, but dramatically accelerated by the turmoil 
of the transition from communism to democracy, unmarried cohabitation also 
spread across countries in Central and Eastern Europe but was of shorter duration 
and more rarely involved childbearing compared to Western European countries 
(Philipov/Jasilioniene 2008; Puur et al. 2012). The proportion of respondents aged 
18 to 45 in the year of data collection who had cohabited with their spouse prior to 
marriage varied widely across the set of countries that here represent Central and 
Eastern Europe, but is lower compared to Western Europe: whereas in Hungary 
(25 percent) and Russia (38 percent) less than half of all married respondents had 
cohabited prior to marriage, this proportion was larger in Georgia (53 percent) and 
Bulgaria (64 percent) (own calculations based on GGS data). The majority of them 
married within one year of starting to cohabit. Hence, the mean duration (in months) 
of premarital cohabitation was signifi cantly shorter compared to Western Europe 
(Bulgaria: 6.9, Georgia: 8.7, Hungary: 7.7, Russia: 6.8, own calculations based on 
GGS data). 

The East-West differences in the demographic patterns related to cohabitation 
suggest a different normative context in both regions. Among a national represent-
ative sample of the entire population in the countries representing Western Europe 
in this study, the majority agrees (strongly) that it would be “alright for two people to 
live together without getting married” (Austria: 81 percent, France: 92 percent, Ger-
many: 80 percent, own calculations based on data from the 2008 European Value 
Study).

Although norms concerning marriage and cohabitation have also relaxed in 
CEE countries (Treas et al. 2014), Stankuniene and Maslauskaite (2008) reported 
widespread resistance towards family change. The majority of the population sup-
port traditional patterns of family formation, although there is substantial variation 



Transition from Cohabitation to Marriage    • 9

across countries. The acceptance of unmarried cohabitation within a national rep-
resentative sample of the whole population also varies across CEE countries and is 
lower compared to WE countries. In Hungary 70 percent of the population agrees 
that cohabitation is acceptable, in Russia and Bulgaria it is about 61 percent, and 
only 32 percent of Georgians approve of cohabitation (own calculations, 2008 EVS 
data).

There is an ongoing scholarly debate surrounding the question of whether the 
spread of cohabitation in Eastern Europe has more to do with the economic cri-
sis and social anomy than with value change (Aassve et al. 2006; Coleman 2004; 
Kalmijn 2007). Cohabitation as a sign of economic disadvantage may have emerged 
as a result of people coping with increased economic uncertainty during the shift 
from communism to democracy by replacing hard-to-reverse life events (i.e. mar-
riage) with reversible ones (i.e. cohabitation) (Kohler et al. 2006). Hence, starting 
to live together without being married may imply a deviation from the behavioural 
norm to a lesser extent than it did in the past. However, given the short time horizon 
between forming a cohabiting union and institutionalising it through marriage, the 
true deviant behaviour may be violating norms by postponing (or foregoing) mar-
riage. Using the same data as in the present study, Hiekel et al. (2014) showed that 
more cohabiters in these countries who considered the institution of marriage as 
outdated reported plans to marry than their Western European counterparts. This 
suggests that cohabiters may conform more readily to predominant and traditional 
family (marriage) formation patterns in these countries. 

There are also major differences within Europe in the way in which unmarried 
cohabitation is treated in the legislation of individual countries. It goes beyond our 
knowledge and the scope of the paper to provide an exhaustive overview of the 
legal approaches to cohabitation in the different contexts. Broadly speaking, no 
country gives completely equal status to marriage and cohabitation in all policy 
dimensions, but also no country privileges marriage vis-à-vis cohabitation in all 
respects (Perelli-Harris/Sánchez Gassen 2012; Sanchéz Gassen/Perelli-Harris 2015). 
Since 1999, cohabiters in France have been able to register their union to ensure 
similar rights vis-à-vis their partner compared to married couples. This is not pos-
sible in Austria or Germany (unless for same-sex couples). All three countries (to-
gether with all Western European countries) have abolished laws that discriminated 
against children born outside of wedlock and grant equal rights to children from 
cohabiting parents (Perelli-Harris/Sánchez Gassen 2012). After the break-up of the 
Soviet system, the previously unifi ed legal jurisdiction fragmented. In none of the 
former Soviet countries included in our sample is cohabitation considered a conju-
gal union under law (Lithuania and Ukraine are exceptions in the area) and most of 
the few efforts to achieve legal harmonisation between cohabitation and marriage 
relate to couples with dependent children (Isupova/Perelli-Harris 2012). 



•    Zuzana Žilinčíková, Nicole Hiekel10

3 Data and Sample

Our sample was drawn from two waves of the Generations and Gender Surveys 
(GGS). The GGS is a set of comparative surveys of a nationally representative sam-
ple of the 18-79-year-old resident population in each of the 19 participating coun-
tries (Vikat et al. 2007). In the fi rst wave, the overall size of the samples differed in 
each country but in most cases was about 10,000 respondents. The response rate 
varied and ranged from 35 percent in Lithuania to 84 percent in Romania (Fokkema 
et al. 2016). At the time this study was conducted, data from a second wave col-
lected three years after the fi rst wave were available for ten countries: Austria, Bul-
garia, Czech Republic, France, Georgia, Germany, Hungary, Lithuania, the Nether-
lands and Russia. Three countries were excluded from the sample ‒ the Netherlands 
because the data did not contain a measurement for marital attitudes in Wave 1, 
Lithuania and the Czech Republic because the marginal prevalence of cohabitation 
and a panel attrition rate of 80 (70) percent made meaningful statistical analyses im-
possible. This left us with a selection of seven countries located in Western, Central 
and Eastern Europe.

We selected individuals who were cohabiting with a partner of the opposite sex 
in Wave 1, were between 18 and 45 years of age in Wave 11 and were observed 
roughly three years later in Wave 2 of the panel. Our sample thus did not include 
same-sex couples. We had to exclude n=28 respondents for whom consistency 
checks based on sex and birth year reported in both waves raised serious doubts 
as to whether the same respondent had been re-interviewed. Moreover, n=492 re-
spondents were excluded because they did not report their partnership and marital 
status consistently across the waves. It is conceivable that they misremembered 
when they started living with their partner, got married or whether they had been 
interviewed before or after these events occurred. This makes it particularly unfor-
tunate that, in Wave 2, respondents’ retrospective information on their partnership 
situation in Wave 1 had been used during data collection as fi lters for questions 
on subsequent marriage or separation. We could not therefore derive any reliable 
information on what had happened to these relationships, and dropped them from 
the analytical sample. The total number of our analytical sample was n=2,847 co-
habiters from seven European countries.

The sample selection process faced two potential biases. First, sample attrition 
can bias the results if it is non-random but related to characteristics of the respond-
ents. Second, cohabiters who marry quickly are less likely to be selected in our 
sample. In the following sections we elaborate on these potential sources of bias 
and describe how we dealt with them in the analyses. 

The panel attrition rate between waves was 32 percent overall; lowest in Geor-
gia and Hungary (less than 20 percent), higher in Austria (26 percent), France and 

1 The Hungarian sample comprised only individuals aged 21 years and older. The proportion of 
cohabiters under 21 was, however, very low in all other countries (1 percent of the total sample), 
meaning that there was no serious underestimation of cohabitation in the Hungarian sample.



Transition from Cohabitation to Marriage    • 11

Bulgaria (32 percent) as well as Russia (37 percent), and highest in Germany (72 per-
cent).2 Panel attrition may seriously bias our results, particularly if cohabiters with 
positive (negative) attitudes towards the institution of marriage are more likely to 
leave the panel during the observation period and therefore be excluded from our 
analytical sample. We therefore compared respondents who were cohabiting in 
Wave 1 and participated in both waves of data collection ‒ hence our analytical 
sample ‒ with their counterparts who dropped out of the panel between the waves 
regarding their attitude towards the institution of marriage. The t-test of the dis-
tributions of the marital attitude measure (not shown) revealed that respondents 
who dropped out did not differ from respondents who participated in both waves. 
Our analytical sample is thus not selective in terms of our variable of interest. We 
also examined potential bias due to panel attrition with regard to our control vari-
ables. These analyses showed that higher (compared to lower) educated as well as 
employed (compared to unemployed) respondents were more likely to participate 
in both waves. Compared to their childless counterparts, cohabiting parents were 
also more likely to participate in both waves. Western Europeans were more likely 
to drop out of the panel (caused above all by the high panel attrition in the German 
survey). Besides our substantial interest in controlling for potentially spurious ef-
fects between these characteristics and the timing of marriage, we also decided to 
include these variables in the multivariate analyses for the purpose of controlling for 
panel attrition selectivity. 

In line with the survey design, we selected those who were not married from all 
respondents in a co-residential relationship in Wave 1. Hence, the sample selection 
took place at an arbitrary moment in respondents’ relationship trajectory. The vast 
majority of respondents between the ages of 18 and 45, however, were married at 
Wave 1 and their proportion was higher in Eastern European countries (66.5 per-
cent) compared to Western European countries (33.5 percent). 39 percent (Western 
Europe) and 58 percent (Eastern Europe) of the married respondents had cohabited 
previously with their spouse. This suggests that cohabiters in our sample might ex-
hibit certain characteristics that made them choose to cohabit instead of marrying 
directly on the one hand, and to postpone marriage for longer on the other. We thus 
used a Heckman selection model that is described in further detail in the discussion 
of our analytical approach. 

4 Measurements

Given our event-history analytical framework (elaborated below), the dependent 
variable was the hazard rate of transition from cohabitation to marriage between 

2 Since the panel attrition rate was extraordinarily high in the German panel data we repeated 
these analyses excluding these data. We drew identical conclusions from the model on the 
reduced sample and therefore decided to include the German sample despite its high attrition 
rate.



•    Zuzana Žilinčíková, Nicole Hiekel12

Wave 1 and Wave 2. The question from which we derived the information on mar-
riage formation was posed at Wave 2 and was as follows: “Did you marry your part-
ner after the last interview?” to which respondents answered either “yes” or “no”, 
providing the date (month and year) of marriage if applicable. 

Marital attitudes were measured at Wave 1 by the following question: “To what 
extent do you agree or disagree with the following statement: “Marriage is an out-
dated institution.”? The level of agreement was measured using a fi ve-point Likert 
scale. Respondents who answered 1=strongly disagree or 2=disagree were clas-
sifi ed as holding a positive attitude towards marriage and considered it a relevant 
social institution in modern times. By contrast, respondents who answered 3=nei-
ther agree nor disagree, 4= agree or 5=strongly agree were classifi ed as holding an 
indifferent or negative attitude towards marriage.3 

With one exception, the control variables were measured in Wave 1 and were 
treated as time-constant (see Table A1 in Appendix). These included plans to get 
married (1=yes), as they were found to be positively correlated with transition to 
marriage (Manning/Smock 2002); age at start of the union, which refl ects the norm 
related to family transitions; union duration and its squared term; gender (1 = fe-
male); level of educational attainment (1= lower secondary or lower, 2 = upper 
secondary and post-secondary, 3 = tertiary) which was found to be positively as-
sociated with cohabiters’ transition to marriage in the process of family formation 
(Perelli-Harris et al. 2010); employment status (1 = employed, 2 = not employed, 
including unemployed, enrolled in education) and ability to make ends meet (scale 
ranging from 1 = with great diffi culty to 6= very easily), which are proxies for eco-
nomic deprivation often linked to the postponement of marriage (Clarkberg et al. 
1995; Duvander 1999; Gibson-Davis 2009); and previous partnership (1=no previ-
ous partnership, 2=previous cohabitation, 3=previous marriage)4 which is associ-
ated with lower odds of marriage (Lichter/Qian 2008; Steele et al. 2005). Addition-
ally, in Wave 2, respondents reported whether they had had a(nother) child since 
Wave 1 and if so, provided the date of birth (month and year). The birth of a child can 
be a reason for a cohabiting couple to marry (Perelli-Harris et al. 2012; Perelli-Harris 
et al. 2010). We treated this event as a time-varying covariate. The corresponding 
dummy variable was given the value 1 nine months prior to the birth to capture the 
conception, and retained that value until the event or censoring.

3 We also experimented with the categorical operationalisation of the variable that further distin-
guished between the two negative and the indifferent attitude towards marriage. Results indi-
cated that cohabiters with an indifferent attitude towards marriage had very similar transition 
rates to marriage as cohabiters who (strongly) agreed that marriage was an outdated institution 
(results available upon request).

4 All respondents who were married to at least one of their prior partners were considered as 
previously married even though they might have cohabited with the partner they married or 
with a different partner.



Transition from Cohabitation to Marriage    • 13

5 Analytical Strategy

Two waves of the GGS allowed us to study the association between marital atti-
tudes and marriage formation among cohabiters from a longitudinal perspective. 
Our statistical modelling strategy was based on event-history-analysis because it 
allowed us to study the association between a set of independent variables and 
the subsequent timing of marriage formation. Specifi cally, a Cox regression model 
(Cox 1972) was used to exploit the information of marriage formation, detailed to 
the month. Cox regression is an appropriate tool for modelling the discrete-time 
data with time-dependent covariates; it allows the inclusion of a correction term for 
selection bias; and it can be extended to the data with non-proportional hazard (Al-
lison 1995). Respondents left the risk set at different time points. Respondents who 
married between waves left the risk set in the month of marriage. Respondents who 
dissolved their union between waves left the risk set in the month of separation and 
respondents who were still cohabiting at the end of the observation period were 
right-censored at Wave 2.5

As discussed in the data section, marriage-prone respondents may be under-
represented in our analytical sample. Consequently we had to take potential sam-
ple selection into account. Mirroring studies with similar selectivity challenges (e.g. 
Billari/Liefbroer 2007) and in line with Heckman (1976), we employed a two-stage 
modelling strategy.

The fi rst stage of the analysis assessed potential factors for sample selectiv-
ity, such as already being married in Wave 1. This probit model was applied to 
all respondents (n=20,365), excluding those who dropped from the panel between 
waves. The predictors in this model were attitudes towards marriage, age, gender, 
education, employment, diffi culty making ends meet, and prior co-residential rela-
tionship. In order to avoid collinearity of the correction term and predictors in the 
second step of our analyses, we included two additional variables in the selection 
model. The fi rst variable indicates the diffusion of cohabitation in the given society 
(measured by the standardised proportion of all individuals 18-45 who have ever 
cohabited) and thus addresses potential selection into cohabitation versus direct 
marriage at the moment of union formation. The second variable, having a joint 

5 A potential concern is that specifying a Cox-proportional hazard regression of our event of 
interest may lead to an upward bias in the estimator of the event of interest (i.e. exiting co-
habitation via marriage), if the presence of a competing risk (i.e. exiting cohabitation via un-
ion dissolution) is not accounted for. From a theoretical perspective, we argue that predicting 
union dissolution goes beyond the focal interest of our study that aims to explain individual 
and contextual differences in cohabiters’ marital attitudes and entry into marriage. Theoreti-
cal arguments predicting marriage cannot be applied to union dissolution in a straightforward 
manner. From a methodological perspective, we argue that the availability of information on 
the timing of union dissolution, detailed to the month, implies that cohabiters who split up no 
longer contributed to the risk set which reduces the risk of biased estimates. However, union 
dissolution is relatively prevalent, particularly in our Eastern European sample. As a robustness 
analysis, we tested our hypotheses on the transition to marriage, specifying union dissolution 
as a competing exit route from initial cohabitation (results available upon request). From these 
fi ndings we drew identical conclusions regarding our hypotheses.



•    Zuzana Žilinčíková, Nicole Hiekel14

biological child with the current partner, was chosen because of the strong empiri-
cal association between marriage and family formation (Musick 2007) and thus ad-
dresses potential selection regarding the timing of marriage. Both measures were 
signifi cantly associated with the probability of being selected in our analytical sam-
ple but not with the transition from cohabitation to marriage between the waves.

The second stage of the analysis comprised two Cox regression models which 
tested our hypotheses, and both included covariate accounting for the selection 
bias, namely the inverse Mill’s ratio derived from the selection model. Tests of mul-
ticollinearity showed that there was no risk of obtaining incorrect estimates. We 
used 200 bootstrap replications for each model to account for additional uncer-
tainty stemming from the potential measurement error of the inverse Mill’s ratio. 
The fi rst model assessed the independent statistical association between our key 
explanatory variables (marital attitude and region) and the cohabiters’ transition to 
marriage. The second model included an interaction term between marital attitude 
and region in order to test the hypothesis regarding East-West differences in the 
effect of marital attitude on marriage transition. We pooled data from the seven 
countries. Preliminary country-specifi c Cox regressions (not shown) revealed simi-
lar results in all countries but only had low statistical power due to the small sample 
sizes and number of events of interest. The preliminary analyses nevertheless con-
fi rmed our confi dence in the fact that pooling the data and contrasting two broader 
regions would not mask important country-specifi c mechanisms. However, as the 
descriptive analysis shows, the greater heterogeneity in our sample of cohabiters 
from Central and Eastern Europe is mainly driven by Georgia being an outlier on 
most indicators. Georgian demographers have suggested that contemporary young 
Georgians increasingly tend to postpone or forego legal marriage after a religious 
wedding and are thus not covered by marriage statistics based on the Civil Regis-
tration Agency (Badurashvili et al. 2008). Also, marriage status in the harmonised 
GGS data refers to legal marriage. Using the pre-harmonised data from Georgia, we 
could identify 30 percent of Georgian respondents in the 18-45 age group who were 
not legally married to their current partner in Wave 1 but who married that partner 
in a religious wedding ceremony. Virtually none of them made the transition to legal 
marriage between the waves. Given the ambiguity surrounding marital behaviour in 
Georgia, we tested the robustness of our hypotheses-testing models by additionally 
specifying the same models but omitting the data from Georgia.

6 Results

Table 1 shows transitions from cohabitation to marriage between Wave 1 and Wave 
2. In all, we observed 481 marriages, hence 17 percent of all cohabiters married dur-
ing the observation period. One in seven (WE) and one in eight (CEE) respondents 
were still cohabiting at the end of the observation period. 298 cohabiters ended 
their relationship between both waves (285 separations, 13 partners died) and were 
considered censored in the month of union dissolution. Most marriages occurred 
among Austrian cohabiters, of whom one in four married (26,5 percent). The few-



Transition from Cohabitation to Marriage    • 15

est marriages occurred among Georgian (5,7 percent) and Bulgarian cohabiters 
(7,4 percent). We thus observed a higher share of marriages among cohabiters in 
Western Europe than in Central and Eastern Europe. Given the higher prevalence 
and acceptance of cohabitation in Western Europe, these results may appear coun-
terintuitive. However, as the selectivity analysis shows, these fi ndings are explained 
by CEE cohabiters marrying faster, which decreases their probability of being part 
of our analytical sample.

In the following, we present separate descriptive results for each of the countries 
in order to gain further insight into the composition of our analytical sample. The 
top of Table 2 shows the distribution of our main independent variable, i.e. whether 
marriage is considered an outdated institution, as measured in the fi rst interview. In 
Austria, France and Germany, around half of all cohabiters disagreed (strongly) with 
that statement. In CEE countries, we observed large differences: merely 21 percent 
of Bulgarian cohabiters held a positive attitude towards marriage, whereas 83 per-
cent of cohabiters in Georgia did so. In Hungary, this proportion was 36 percent, 
and 50 percent in Russia. 

At least half of all cohabiters planned to marry in the near future, and their pro-
portion was larger in CEE compared to WE. The overall median duration of cohabi-
tating relationships at the time of the fi rst interview was 56 months. It was longest in 
Georgia (79 months) and Bulgaria (62 months) and shortest in Hungary (39 months). 
Our sample included more women than men in all countries except Georgia. Most 
respondents had had a secondary or post-secondary education (58 percent), fol-
lowed by respondents with tertiary education (26 percent) or lower than secondary 

Wave 1 Wave 2
Cohabiting Married Still cohabiting Dissolved union 

n n % n % n %

High-cohabitation countries (Western Europe)
Austria 604 160 26.5 383 63.4 61 10.1
France 611 101 16.5 465 76.1 45 7.4
Germany 128 33 25.8 81 63.3 14 10.9

Low-cohabitation countries (Central and Eastern Europe)
Bulgaria 323 24 7.4 280 86.7 19 5.9
Georgia 368 21 5.7 339 92.1 8 2.2
Hungary 475 84 17.7 296 62.3 95 20
Russia 338 58 17.2 224 66.3 56 16.6

Western Europe 1,343 294 21.9 929 69.2 120 8.9
Eastern Europe 1,504 187 12.4 1,139 75.7 178 11.8

Total 2,847 481 16.9 2,068 72.6 298 10.5

Tab. 1: Cohabiters’ relationship transitions during observation period

Source: Generations and Gender Surveys (GGS 2002-2009). Waves 1 and 2, authors’ cal-
culations



•    Zuzana Žilinčíková, Nicole Hiekel16
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Transition from Cohabitation to Marriage    • 17

education (16 percent). More cohabiters in WE countries had higher-level education 
compared to cohabiters in CEE countries; this difference was most pronounced 
in Bulgaria where, together with Georgia, the largest proportion of non-employed 
cohabiters could be found. Similarly, on average, CEE cohabiters found it more dif-
fi cult to make ends meet in comparison to WE cohabiters. About a quarter of the 
cohabiters conceived a child between Wave 1 and Wave 2, with a slightly higher 
proportion of cohabiters doing so in WE countries (28 percent) than in CEE coun-
tries (23 percent). About a quarter of cohabiters had previously lived together with 
a partner or a spouse. The proportion of previously cohabiting respondents was 
higher in WE countries, whereas the proportion of previously married respondents 
was higher in CEE countries, however we again observed great differences among 
CEE countries. In sum, the descriptive analyses confi rmed the well-documented 
heterogeneity of cohabiters across societies. Also consistent with previous studies 
was the fact that cohabiters in the selected Western European countries were some-
what more homogeneous compared to cohabiters in selected Eastern European 
countries, with Georgia being an outlier in many of the selected indicators.

Table 3 presents results from a probit model that assessed the selectivity of 
our analytical sample. Cohabiters in our sample clearly differ from those who were 
already married in Wave 1. Respondents who held a positive attitude towards the in-
stitution of marriage were more likely to be married in Wave 1 and thus less likely to 
be included in our analytical sample. Please note that the attitude towards marriage 
of these respondents was assessed after they had married. Given the reciprocal as-
sociation between attitudes and behaviour, we could not deduct exposure effects 
from the selection and thus have potentially overestimated the difference in co-
habiters’ and spouses’ marital attitudes. Eastern European respondents were more 
likely to be married in Wave 1 and thus not part of our analytical sample, refl ecting 
the lower prevalence of cohabitation in these countries but also the fact that cohab-
iters may be quicker to transform their union into marriage. Parents, older and less 
well educated individuals are more likely already to be married at fi rst interview. Al-
though we have not observed selection in the sample based on employment status, 
individuals with diffi culty in making ends meet are more likely to cohabit than be 
married in Wave 1. Respondents who had been cohabiting or married prior to the 
current relationship are also more likely to be selected, as well as those with shorter 
union durations. However, as the positive effect of the squared term of union dura-
tion indicates, the probability of selecting individuals increases at a given (longer) 
union duration.

Table 4 shows the results of the second stage of the statistical modelling, namely 
Cox regression models, with the timing of marriage as the dependent variable. In all 
models, the Inverse Mills Ratio controlling for sample selection bias is statistically 
signifi cant. In a fi rst step, we tested the association between an attitude towards 
marriage and the transition to marriage. A model containing only marital attitude 
(results not shown) revealed that cohabiters who expressed a positive attitude to-
wards marriage had 3.1 higher odds of marrying than cohabiters who were indif-
ferent or negative about the institution of marriage. Model 1 (Table 4) shows the 
results of a model that included other predictor variables. The positive association 



•    Zuzana Žilinčíková, Nicole Hiekel18

between a positive marital attitude and the timing of marriage remained statisti-
cally signifi cant (OR=2.27). Cohabiters who were positive about marriage in Wave 
1 were more than twice as likely to be married in Wave 2. This estimate is robust 
when controlling for sample selection and other factors associated with the timing 
of marriage. This fi nding thus supports Hypothesis 1. Western European cohabiters 
had a slightly higher likelihood of entering into marriage than cohabiters from CEE 
countries, but this effect was only marginally statistically signifi cant. 

We briefl y discuss the effects of other predictor variables on the timing of mar-
riage formation. Plans to get married accounted for a substantial decrease in the 
effect of marital attitude on marriage formation. This is because respondents who 
were positive about marriage were also more likely to have plans to get married. 
Interestingly, marital attitudes were not strongly correlated with marital intention 
and instead had their own separate effect. Other factors were also associated with 
marriage formation. Individuals with secondary and post-secondary education, or 
tertiary education had higher odds of entering marriage than cohabiters with lower 
than secondary education but did not differ signifi cantly from each other. Cohabit-
ers who were employed had higher odds of entering marriage compared to their 
non-employed counterparts, and similarly, the more easily a respondent was able to 
make ends meet, the more likely (s)he was to make the transition to marriage. Prior 
cohabitation decreased the odds of transition to marriage; union duration and its 
squared term did not infl uence the transition to marriage signifi cantly. Lastly, con-

Tab. 3: Estimates (odds ratio) for a probit model predicting sample selection 
(cohabiting instead of married in Wave 1) (N=20,365)

Odds ratio

Positive about marriage (Ref=neutral/negative) 0.48***
Proportion of 18-45 year old population that ever cohabited (standardised) 1.19***
Age 0.99*
Female (Ref=male) 0.98
Education (Ref=lower secondary or below)

secondary, post-secondary 0.90**
tertiary 0.80***

Not employed (Ref=employed) 1.04
Biological child with current partner (Ref=no) 0.53***
Diffi culty in making ends meet1 0.95***
Prior co-resident union (Ref=no) 1.47***
Union duration 0.91***
Union duration (squared) 1.00*
Constant 3.07***

***p<.001 **p<.01 *p<.05 +p<0.1
1 measured on scale 1 (with great diffi culty) to 6 (very easily)

Source: Generations and Gender Surveys, Waves 1 and 2, authors’ calculations



Transition from Cohabitation to Marriage    • 19

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•    Zuzana Žilinčíková, Nicole Hiekel20

ceiving a child between waves had a signifi cant effect on the transition to marriage, 
confi rming the expected link between timing of childbearing and marriage. 

Model 2 (Table 4) includes an interaction term between marital attitude and re-
gion in order to test Hypothesis 2 on expected country differences in the associa-
tion between the marital attitude and marriage formation. With this interaction term 
included, the effect of a positive attitude towards marriage increasing the risk of 
marriage by 2.61 applies to Eastern European cohabiters who were thus more than 
twice as likely to marry compared to their counterparts who held an indifferent 
or negative attitude towards marriage. The effect of the interaction term indicates 
that this positive association between marital attitude and transition to marriage 
was reduced by 0.81 in Western European countries. This effect is, however, not 
statistically signifi cant. The effect of region indicates that the odds of marriage for 
Western European cohabiters increased on average by 1.44, which is not explained 
by differences in their average marital attitude. This effect may refl ect the stronger 
recuperation of postponed marriages among Western European cohabiters that we 
discussed in the selectivity analysis.

Given the particularities in the composition of the Georgian population of co-
habiters we estimated the same two models omitting the data from Georgia (Table 
4, Model 3 and Model 4). These analyses lead to almost identical results in Model 
3 (i.e., the equivalent to Model 1), thus providing support for Hypothesis 1. Differ-
ing from the fi ndings in the full sample, Model 4 (i.e., the equivalent to Model 2) 
reveals that the negative interaction between marital attitude and region regarding 
entry into marriage is statistically signifi cant at the 0.05 level in the analysis omit-
ting Georgia. This fi nding suggests that the link between a positive attitude towards 
marriage and marriage formation is weaker in Western Europe compared to Eastern 
Europe. Hence, neither the fi nding from the full model nor the model omitting Geor-
gia support Hypothesis 2 in which we formulated the expectation that the attitude-
behaviour link would be weaker in Eastern Europe because of the stronger societal 
norms regarding getting married that push cohabiters into marriage beyond their 
own attitudes towards the institution. 

We reject Hypothesis 2 based on the direction of the effect; this points actually 
to a weaker association between marital attitudes and transition to marriage among 
Western European cohabiters. Based on these analyses we draw two conclusions. 
First, positive attitudes towards the institution of marriage were associated with 
higher odds of entering marriage. Second, although with great caution because the 
fi nding is not robust when Georgia is included in the Eastern European sample of 
cohabiters, the strength of the association between marital attitude and entry into 
marriage is weaker in Western European countries characterised by high diffusion 
of cohabitation and less normative pressure to transform cohabitation into a mar-
ried union. 



Transition from Cohabitation to Marriage    • 21

7 Conclusion and Discussion

This study began by arguing that a comparative perspective on the marriage trajec-
tories of established cohabiting relationships deserves greater academic interest. 
We argued that the merit of theoretical considerations derived from the SDT frame-
work lies in the attention that is drawn to attitudinal change and its intertwining with 
social norms in explaining changes and variation in demographic behaviour related 
to union formation. We reviewed country-specifi c literature which showed that co-
habitation in some countries had already become the predominant way of start-
ing a co-resident relationship, whereas in other countries, onset of the diffusion of 
cohabitation had been more recent. Related to the stage of diffusion of cohabita-
tion are predominant social norms about the importance of getting married. The 
SDT framework suggests cross-national differences in the proportion of cohabiters 
holding (dis)approving attitudes about the institution of marriage as well as variation 
in the strength of social norms about marriage. We derived two hypotheses from 
these theoretical considerations. We expected fi rst, that marital attitudes are as-
sociated with cohabiters’ transition to marriage (H1), and second, that the strength 
of this association is weaker in Central and Eastern European countries with a low 
prevalence of cohabitation compared to Western European countries with a high 
prevalence (H2). Using panel data from two waves of the Generations and Gender 
Surveys, we compared two European regions comprised of pooled data from seven 
European countries and examined cohabiters’ risk of marriage as a function of the 
extent to which they consider marriage an outdated institution, along with other 
socio-demographic and economic predictors associated with marriage formation. 

Our fi rst key fi nding was that, in line with studies that have investigated the se-
lection of individuals into either cohabitation or marriage as the start of their union, 
cohabiters with a favourable attitude towards marriage were more likely to marry 
than cohabiters with a negative attitude. Though the present study only used one 
indicator, it was, in our view, a particularly interesting attitudinal measure for our 
research purpose. A cohabiter’s (dis)agreement with a statement such as “Marriage 
is an outdated institution” indicates cohabiters’ motives for living in a non-marital 
union and (future) relationship expectations but also refl ects societal norms about 
marriage.

Our second key fi nding was that we identifi ed country differences in the pro-
portion of cohabiters who agreed with the statement that marriage is an outdated 
social institution. Agreement with that statement was generally higher among co-
habiters in three of the four Central and Eastern European countries compared to 
cohabiters in the three Western European countries we examined. In line with the 
SDT framework, this suggests that in countries where cohabitation is less preva-
lent and the cohabiting population is more selective, cohabiters predominantly hold 
negative attitudes towards marriage, as such attitudes may have selected them 
into cohabitation in the fi rst place. However, the underrepresentation of Central 
and Eastern European cohabiters in our analytical sample due to their transition 
to marriage prior to the fi rst interview (Table 3) also suggests that many cohabit-
ers in CEE countries have internalised widely shared ideas about the superiority of 



•    Zuzana Žilinčíková, Nicole Hiekel22

marriage over cohabitation (Mureşan 2008; Sobotka 2008). Although more people 
are increasingly opting for cohabitation, cohabitation is largely viewed as inferior 
to marriage, and childbearing remains closely linked to the transition to marriage, 
particularly for individuals with greater socio-economic resources (Haragus 2015). 
Moreover, we also found larger cross-country diversity in Central and Eastern Eu-
rope compared to Western Europe in the level of (dis)agreement with the statement 
that marriage is outdated. This greater country variation within Central and Eastern 
Europe is usually explained by different challenges in the transition from state so-
cialism to democracy and a market economy. Bulgaria and Romania experienced 
a more profound economic collapse and particularly slow recuperation with great 
social inequalities (Haragus 2015; Thornton/Philipov 2009). This suggests that entry 
into cohabitation in these countries is associated with economic constraints and 
particularly long-term cohabitating unions may be understood as a “poor man’s 
marriage” for those who cannot afford to marry (Oppenheimer 1988, 2003).

Our third and main fi nding was that the multivariate analyses did not reveal the 
context dependencies of the association between marital attitudes and marriage 
formation that we expected to fi nd. The interaction effect provided no evidence 
that association between marital attitudes and transition to marriage is weaker in 
Central and Eastern Europe where cohabitation is less prevalent and less accepted 
because of cohabiters’ exposure to strong social pressure to get married, irrespec-
tive of their personal attitudes towards the institution of marriage. On the contrary, 
the direction of the interaction effect suggests that the association between marital 
attitudes and marriage formation is actually weaker in Western Europe where co-
habitation is more common. This effect does, however, reach statistical signifi cance 
in a model that omitted the Georgian sample. As readers will recall, the Georgian 
data exhibited a large number of particularities in the composition of the cohabiting 
population and the transition rate to legal marriage compared to other (Eastern) Eu-
ropean countries in our sample. As noted earlier, research from Georgia suggested 
a stronger reluctance among young Georgians to register a church wedding with 
the legal authorities (Badurashvili et al. 2008). The fact that the country comparative 
GGS surveys consider legal marriage (and not religious marriages) means that they 
may not fully refl ect actual marital behaviour and the meaning of marriage in the 
Georgian sample.

We can envisage three reasonable explanations for the weaker association be-
tween marital attitudes and transition to marriage among cohabiters in Western 
compared to Eastern Europe and invite future research to address them. First, this 
result might indicate that Western European cohabiters – even those with positive 
attitudes towards marriage – can postpone marrying without being stigmatised. 
Second, the virtual absence of strong social pressure to transform a cohabiting into 
a marital union could increase the importance of “pragmatic” reasons to marry, such 
as tax benefi ts or the purchase of residential property given that in many Western 
European countries, cohabiters and spouses are treated similarly in terms of taxa-
tion, property and inheritance rights (Perelli-Harris/Sánchez Gassen 2012). Finally, 
in such contexts, the relationship history itself may be more predictive of the entry 
to marriage than people’s general attitudes towards the institution of marriage. For 



Transition from Cohabitation to Marriage    • 23

instance, the conception of a child was more strongly associated with entry into 
marriage among Western European cohabiters compared to their Eastern European 
counterparts (results not shown). Ideally, measures which reveal how important re-
spondents view such “pragmatic” reasons or life events for their decision to marry 
would allow explicit testing of such mechanisms. Unfortunately, these measures 
have not been included in the GGS and we are not aware of any longitudinal, coun-
try comparative survey which collects both attitudinal measures and demographic 
outcomes that includes such measures.

Of course, there are certain limitations to this study. Only a minority of our co-
habiting sample entered into marriage during the observation period of roughly 
three years. Keeping the overrepresentation of long-term cohabiting unions in our 
analytical sample in mind, this indicates the increasing longevity of cohabiting un-
ions, predominantly driven by a postponement of marriage to later in life. It is not 
caused by the cohabiters not being observed for long enough. The median duration 
of the relationship was fi ve years at the fi rst interview and we recorded transitions 
to marriage during the following three years. We identifi ed stark differences in co-
habiters’ timing of marriage formation that are explained by differences in their 
approval of the institution of marriage. We feel that this fi nding underlines the im-
portance of taking marital attitudes into account in order to refl ect heterogeneity in 
cohabiters’ marital trajectories. 

We are aware that pooling data from countries in two broad European regions 
masks the diversity of cohabitation patterns within both regions that have been em-
phasised in the literature (Sobotka 2003; Sobotka/Toulemon 2008) and have been 
confi rmed in our descriptive analyses. However, small sample sizes in some of the 
countries in this study prevented us from conducting statistically meaningful analy-
ses for separate countries, and the number of countries did not permit the applica-
tion of a multilevel analytical framework either. Future analyses should include more 
European countries to see whether the diversity within Eastern Europe observed 
in the current study was predominantly due to the limited and non-random selec-
tion of countries for which we had suitable data available. A multilevel analytical 
framework would also allow testing of the infl uence of country-level indicators in 
the normative and economic sphere (e.g. unemployment, housing market charac-
teristics, legal arrangements) that reveal such contextual effects and formally test 
whether they explain country differences in the marriage transition among cohabit-
ers. Moreover, a study on regional differences within countries could reveal differ-
ences beyond national borders.

Acknowledgements
Zuzana Žilinčíková’s contribution to this research received fi nancial support from 
the Czech Science Foundation (project num. 17-18235S).

The authors would like to thank Tom Emery for his valuable advice on an earlier 
version of this manuscript and express their gratitude to the editor and two anony-
mous reviewers for their constructive comments and suggestions during the review 
process. 



•    Zuzana Žilinčíková, Nicole Hiekel24

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Date of submission: 27.06.2017  Date of acceptance: 06.03.2018

Zuzana Žilinčíková (). Masaryk University. Brno, Czech Republic. 
E-mail: zilincikova@mail.muni.cz
URL: https://www.muni.cz/en/people/333003-zuzana-zilincikova

Dr. Nicole Hiekel. University of Cologne, Germany. E-mail: hiekel@wiso.uni-koeln.de
URL: http://www.iss-wiso.uni-koeln.de/institut/personen/h/dr-nicole-hiekel/
Netherlands Interdisciplinary Demographic Institute (NIDI). The Hague, The Netherlands
URL: https://www.nicole-hiekel.com



Transition from Cohabitation to Marriage    • 29

Appendix

Tab. A1: Descriptive statistics for variables used in the analyses

Cases Not Selected Cases Selected
Married in Wave 1 Cohabiting in Wave 1

(n=17,518) (n=2,847)
Percentage Mean (SD) Percentage Mean (SD)

Marital attitudes
Neutral/negative 23.4 52.3
Positive 76.6 47.7

Geographical location
Living in Eastern Europe 66.2 52.8
Living in Western Europe 33.9 47.2

Intention to marry 
yes n.a. 54.2
no n.a. 45.8

Union duration in months at Wave 1 157.0 (79.8) 73.0 (60.5)
Age 36.1 (6.1) 31.7 (6.5)
Male 38.8 42.6
Female 61.2 57.4

Level of education 
Lower secondary or below 12.1 15.6
Secondary, post-secondary 59.7 58.2
Tertiary 28.2 26.2

Employment
Employed 78.3 80.7
Not employed 21.8 19.4

Diffi culty in making ends meet1 3.0 (1.3) 3.2 (1.4)
Biological child with current partner 87.4 50.0
Prior co-resident union 9.6 29.9

Note: n.a. = not applicable
1 measured on scale 1 (with great diffi culty) to 6 (very easily)

Source: Generations and Gender Surveys, Waves 1 and 2, authors’ calculations



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