




































American Economic & Social Review; Vol. 3, No. 1; 2018  

ISSN 2576-1269   E-ISSN 2576-1277 

Impact Factor: 3.9 

                                            Published by Centre for Research on Islamic Banking & Finance and Business, USA 

 

 

23 

 

Household Preferences and Willingness to Pay for Waste 

Management Services in Rural Nigeria 

 

Richardson Kojo Edeme 

Department of Economics, University of Nigeria, Nsukka 

Email(s): richard.edeme@unn.edu.ng; kojodynamics@yahoo.com 

 

Nelson C. Nkalu (corresponding author) 

Department of Economics, University of Nigeria, Nsukka 

E-Mail(s): nelson.nkalu@unn.edu.ng; nkaluconnection@gmail.com 

 

 

Received: November 5, 2018      Accepted: November 9, 2018           Online Published: November 16, 2018        

   

Abstract 

Safe and clean environment is an essential requirement for maintaining life on earth and creating human friendly 

environment is one of the most important issues in the world today. The concern of this paper is to examine 

household preference and willingness to pay for waste management services. The population of the study is made up 

of the households in the Nsukka urban where simple random sampling techniques was employed to select 25 

households from each of the six town in Nsukka urban, employing binary modelling using probit model to estimate 

the impact of both cultural and demographic factors and economic factors on household willingness to pay for waste 

management service. The result revealed that demographic factors such as age, household size and education have 

great influence on household willingness to demand for waste management in Nsukka urban area. Also, economic 

factors such, income level of the households, awareness of the household about the environment, impact of waste 

management service and cost of waste management service has positive significant impact on household willingness 

to pay for waste management services.  

Keywords: Household, waste management services, binary model, probit model 

1. Introduction 

Waste is directly linked to human development, both technologically and socially. The composition of different 

wastes has varied over time and location, with industrial development and innovation being directly linked to waste 

materials. Waste management agencies have placed an increasing focus on reducing waste so that there is less to 

cope with. Attempts have been made by scholars, researchers, consultants and government to determine the actual 

amount of waste being generated in Nigeria in general (Agbola, 2001). In a survey carried out by (CASSAD, 1998) 

on waste generation in Nigeria. The study shows that the volume of wastes generated by all the states increased over 

the period between 1994 and 1996. It was estimated that by the year 2010, Nigeria will generate about 3.53 million 

tonnes of solid waste, based on a per capita solid waste generation of 20kg per year (Agbola, 2001). Nigerian urban 

areas have been said to be some of the dirtiest, the most unsanitized and the least aesthetically pleasing in the world 

(Alabi, 2004).  

Attempts have been made by researchers to determine the actual amount of waste being generated in Nigeria 

(Agbola, 2001). In a survey carried out by (CASSAD, 1998) on waste generation in Nigeria, it was found that the 

volume of wastes generated by all the states increased between 1994 and 1996. It was estimated that by the year 

2010, Nigeria will generate about 3.53 million tonnes of solid waste, based on a per capita solid waste generation of 

20kg per year (Agbola, 2001). Nigerian urban areas have been said to be some of the dirtiest, the most unsanitized 

and the least aesthetically pleasing in the world (Alabi, 2004). About 75 percent of solid waste collected in most 

Nigerian urban cities is disposed in open. This method which is rampant is not hygienic as it marginalizes the 

environment as a result of the negative externalities it generates (Adinnu 1994). 

Safe and clean environment is an essential requirement for maintaining life on earth and creating human friendly 

environment is one of the most important issues in the world today (Khtak and Amin 2013). To meet the needs of 

rapidly growing population, it is obvious that production has to be increased by at least the population growth rate 

mailto:richard.edeme@unn.edu.ng
mailto:kojodynamics@yahoo.com
mailto:nelson.nkalu@unn.edu.ng
mailto:nkaluconnection@gmail.com


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which leads to waste production that is beyond the absorptive capacity of the environment due to the hygienic 

problems as a result of the negative externalities it generates (Tarfasa, 2007, Subha, Ghani et al., 2014). The 

changing economic trends and rapid urbanization also complicate solid waste management in developing countries. 

Consequently, solid waste is not only increasing in quantity but also changing in composition from less organic to 

more paper, packing wastes, plastics, glass, metal wastes among other types, a fact leading to the low collection 

rates (Bartone& Bernstein, 1993; Yusuf, Ojo, et al, 2007). Agreeing with this assertion, (CASSAD, 1998), stated 

that the decomposition of wastes on open dumping grounds emit intolerable smells and attract potential diseases. 

Wastes that are not well managed can affect the environment in terms of the contamination of the atmosphere, soil 

and water. This can cause severe problems for humans and animals population. It can also affect human health in 

particular by causing convulsion, dermatitis, irritation of nose/throat, anaemia, skin burns, chest pains, blood 

disorders, stomach aches, vomiting diarrhoea and lung cancer which may lead to death (Alabi, 2004). The social 

effect where flood which has resulted in loss of lives and properties worth millions of naira. Population growth, 

urbanization and greater exploitation of resources resulted in an increasing demand for environmental management. 

Particularly in developing countries urban areas, the people are facing sever challenges due to lack of healthy urban 

environment (Khtak & Amin 2013).  

Inadequate urban waste management is one of the major drivers to the degrading of environment quality in urban 

areas (UNPDDESA, 2005, Khattak, Khan et al., 2009, Wilson and Velis, 2014). This solid waste problem is due to 

high waste generation, inadequate waste collection, and poor disposal habits by the households/individuals, which is 

as a result of lack of appropriate planning, inadequate governance, resource constraint and ineffective management 

solid waste is a major source of concern in many rapidly growing cities in developing countries. According to UNEP 

(2004), solid waste generation has become an increasing environmental and public health problem everywhere in the 

world, particularly in developing countries. The fast expansion of urban agricultural and industrial activities 

stimulated by rapid population growth has produced vast amounts of solid and liquid wastes that pollute the 

environment and destroy resources.  

In the past, most attempts by cities to improve solid waste management focused on the different technical means of 

collection and disposal (Altaf & Deshazo 1996; Medina 2002). Collection and disposal of waste has always been the 

responsibility of government authorities in the past (Harris, Allison & Smith, 2001), hence, waste management is a 

service for which state and local government is responsible (Cointreaus-Livine, 1994, Alabi, 2004). The inability of 

the government to manage solid waste collection and disposal effectively arose perhaps from the misconception of 

this task as a public good. Irrespective of the fact that government gave waste collection a priority in their 

development objectives, their ability to curtail the problems of waste collection deteriorates with time especially in 

the rural areas or emerging town like Nsukka, due to rising capital costs for plant and equipment, increasing 

operation and maintenance costs because of the rapid population growth of emerging urban areas with decreasing 

waste management coverage levels, and with increase in level of waste generated, confronted by increasing public 

demand for improved services and infrastructure (Salifu, 2001 and Sule, 1981), the need arises for the involvement 

of the private sector and the civil society in the provision of municipal solids waste service.  

It should be noted, however, that it is only in the large urban centres of Nigeria such as Lagos, Ibadan, Warri, Suleja 

amongst others that the activities of formal private sector are recorded (Alabi, 2004). In majority of the cities such as 

Osogbo, they are neither totally absent or being substituted with the informal refuse collectors such as cart pushers. 

This therefore gives rise to the need to evaluate the household willingness to pay for improved solid waste disposal 

services in the study area. This study examined the general features of the existing waste management, household 

willingness potential to pay for improved waste disposal. The objective of this study is to examine household’s 

preferences and willingness to pay for waste management services. Specifically, the study is designed to examine 

the extent cultural demographic and economic factors impact on household’s preferences and willingness to pay for 

waste management services in Nsukka urban.  

2. Literature Review 

As argued by Tchobanglous (1993), all wastes emating from human and animal activities that are normally solid and 

are discarded as useless or unwanted are broadly defined as solid waste. It includes municipal garbage, industrial 

and commercial wastes, sewerage slug, waste of agricultural and animal husbandry, demolition waste and mining 

residues. Different individuals have defined solid waste differently. It encompasses household refuse, institutional 

wastes, street sweepings, commercial wastes, as well as construction and demolition debris. To Cointreau (1982), 

solid waste is material for which the primary generator or user abandoning the material within the urban area 

requires no compensation after abandonment. Solid Waste Management (SWM) is defined as the control, 

generation, storage, collection, transfer and transport, processing and disposal of solid waste consistent with the best 

practices of public health, economics & financial, engineering, administrative, legal and environmental 

considerations (Othman, 2002). Solid waste management has three main components: collection and transportation; 



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reuse or recycling; and treatment or disposal (SIDA, 2006). US EPA recommends using integrated, hierarchical 

approach to waste management with four components: source reduction, recycling, combustion, and land filling, to 

address the increasing volume of municipal solid waste. It ranks source reduction including reuse as the most 

preferred method, followed by recycling and composting, and lastly, disposal in combustion facilities and landfills.  

Enger and Smith (2006) categorized solid waste in to four broader kinds as mining, agricultural, industrial, and 

municipal solid waste. Materials no longer used but are disposed because they are broke, spoiled, or have no longer 

uses are regarded as solid waste. Such waste can emanate households, commercial establishments, institutions, and 

some industries. Considering the points through which waste emanated, waste can be divided into: domestic waste, 

commercial waste, industrial waste, institutional waste, street sweepings and constructions waste. According to 

Cornwell (1998) solid waste can be classified as organic, inorganic, combustible, putrescible and non-putrescible 

factions. Cointreau (1982), Blight & Mbande (1996), Arlosoroff (1982) notes that developing countries wastes are 

2-3 times greater in waste density at the same time 2-3 times greater in moisture content than that of industrialized 

nations. Developing country wastes also involve large amount of organic waste (vegetable matter, etc.), large 

quantities of dust, dirt (street sweepings, etc), and smaller particle size on average than in industrialized nations. 

Although there might be some potential opportunities which arise from their waste composition, these peculiarities 

from industrialized nations present additional problems (Cointreau, 1982; Zerbock, 2003). Firstly, a higher solid 

waste density has many implications for the ‘traditional’ methods of collection and disposal. 

Several empirical studies on waste management indicate that age, household size, sex, marital status, education and 

household are among factors affecting willingness to pay for effective waste management. Niringiye & Omor (2010) 

found that age of the respondents has a negative and significant effect on waste management in Kampala city in 

Uganda. According to Yusuf, Salimonu & Ojo(2007) on willingness to pay to  improved household  solid waste 

management in Oyo State, Nigeria. The outcome of the work showed that the maximum individual is willing to pay 

for improved solid waste management is N1240. Furthermore, it was discovered that other factors such as age, 

educational level, household size and households monthly expenditure and income affects willingness to pay for 

waste disposal. 

Das & Gogoi (2010) while analyzing the effect of in a municipal solid waste management of Tinsukia Municipality 

of Assam in India, observed that Cost of waste management is affected by family income positively. The result of 

the study shows that an increase in household income increases willingness to pay by as much as 13%. Additionally, 

they found out that willingness and preference to pay for waste disposal also depend on the proportion waste the 

household generate per month. Household with huge waste to dispose have 21% willingness to pay for such 

services. Siriwardena & Gunaratne (2007) and Jamal (2002), Pek et al., (2008) used the choice experiment and the 

multinomial logit regression to investigate solid waste management in Malaysia. Their findings were that the level 

of increase in waste disposal required better quality disposal options. They concluded that sanitary landfill is more 

preferred in solid waste disposal by the residents. The study of Morrison et al. (2002) on willingness to pay for 

waste disposal and management showed that, the willingness to pay by the respondents was negative. The 

respondents believe that the government should take care of the environmental issues. The implicit price obtained 

revealed that the households were not interested in environment improvement because there is an alternative to 

dispose wastes.  

In his investigation of household preferences for solid waste management in Malaysia, Jamal (2002) that households 

derive positive utility from the provisions of compulsory recycling facilities for efficient waste disposal. Birol et al., 

(2009) estimated the value of improved wastewater treatment, a case study of river Ganga, in India by using the 

conditional logistic model. It was discovered that the coefficients were significant and in accordance to expectation. 

Treated wastewater quantity and quality were significant factors in the choice of a wastewater treatment programme. 

These two attributes increase the probability that a wastewater treatment programme is selected. In other words, 

households value those wastewater treatment programmes that result in higher quality and quantity of wastewater 

treated. While considering the attributes of frequency of vat collection, covered vats, covered collection trucks and 

monthly increase in tax, Sukanya et al., (2008) used the conditional logistic model and the random parameter model 

to estimate willingness made by the respondents to improvement in solid waste disposal. Their findings were that 

the poor and the rich have different attribute to payment. Whereas richer households were willing to pay more for 

higher wastewater treated to a quality, poorer households were rather willing to pay more for higher quantity of 

wastewater treated.  

3. Methodolgy 

The study adopted simple random sampling technique where 25 households were sampled from each of the six 

towns that make up Nsukka urban, giving a total sample of one hundred and fifty (150) respondents. The study made 

use of a structured questionnaire to collect data from respondents. The questionnaire supplied information on the 

factors that influence household willingness and preference for waste management service by households. It also 



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elicited information concerning the cultural and demographic and economic factors influencing households’ 

preferences and willingness to pay for waste management services. The descriptive statistics technique is adopted to 

show the characteristics of households’ preferences and willingness to pay for waste management services. In 

furtherance, the probit regression analysis is employed to empirically estimate the impact of cultural and 

demographic and economic factors influencing household preferences and willingness to pay for waste management 

services.  

3.1 Model 

The probit regression model is used to estimate the impact of cultural and demographic and economic factors 

influencing household preferences and willingness to pay for waste management services in Nsukka Urban.. 

According to Wooldridge (2016), the linear probability model is suitable to model a dependent variable that takes 

values which are either 0 or 1. Here, the probability of observing a 0 or 1 in any one case is treated as depending on 

one or more explanatory variables. Hence, for a binary outcome  and its associated vector of explanatory 

variables , it is true that  i.e., the probability of success. This means that the probability 

that  given  is the same as the expected value of  given . This yields the probability equation: 

 

This indicates that the probability of success i.e.,  is a linear function of   variables. This equation is 

a typical instance of a linear probability model (LPM) because the response probability is linear in the 

parameters . In this model measures the change in the probability of success when  changes, holding other 

factors constant; expressed mathematically as 

 

Of importance to note is that the  i.e., the vector of parameters of the linear probability model can be estimated 

with the ordinary least square method. In other words, this model is simple not just to estimate but to interpret, but it 

has some drawbacks (Wooldridge, 2016). The two most crucial demerits are: First, the fitted probabilities can be 

less than zero or greater than one i.e., that it can lie outside the 0-1 range. Second, the partial effect of any 

explanatory variable is constant. Put differently, it assumes that  increases linearly with   variables. 

This assumption seem unrealistic because in reality, one would expect a nonlinear relationship between 

 and  . In other words, we need a more sophisticated binary response model i.e., a logistic 

regression model. In the LPM, the probability of success is given as  i.e.,  as in 

Gujarati & Porter (2009), but for logistic representation, the probability of success is given as:  

 

If  

Equation 3 can be written as; 

 

With the lowest common multiple = , the denominator of equation 5 can be deduced as:  

If the denominator of equation (5) is replaced with (6) and in respect to cross multiplication rule, the  solves down 

to: 



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Equation 7 is referred to as the logistic distribution function. From equation (7), it is easy to prove that as  ranges 

from negative to positive infinity,  ranges between 0 and 1, and  is nonlinearly related to  (i.e., . This 

satisfies the two conditions considered earlier, but an estimation problem has been created because  is nonlinear 

both in  and  as can be seen from equation 3. This implies that the ordinary least square method cannot be 

used to estimate the parameters.  

If the probability of success (i.e., the probability that the outcome of interest happens) is  

 as in equation (7), then the probability of failure is  

 =  

Let LCM be , so that equation 8 becomes: 

 

The odds ratio using equation 7 and 9 can therefore be written as: 

 

Equation (10) denotes the odds ratio in favour of success i.e., the ratio of the probability that an event of interest 

happens to the probability that it does not happen. Taking the natural log of equation 10 gives the following logit 

regression model 

 

Accounting for the error term produces the following stochastic model 

 

Pohlman & Leitner (2003) compare the result of OLS with that of Logit for a binary dependent variable and 

concluded that probability model like Logit and Probit yield a better result than OLS. Secondly, almost all the 

review empirical studies on household willingness to pay for waste management employed probability modelling 

like probit to estimate the relationship. As such this research will follow the part of previous researchers like Das 

and Gogoi (2010); Siriwardena&Gunaratne(2007); Jamal (2002), and  Pek et al.,(2008) to estimate the household 

preference and willingness to pay for waste management service.  

The observed binary (1, 0) for whether or not household has demanded for waste management service is expressed 

in the following probit regression model: 

Y= bXij + eij 



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where Y= demand for waste management services (1=Yes; 0=No), Xij =vector of explanatory variables, bij= vector of 

parameter estimates 

Model 1: Impact of cultural and demographic factors on preference and willingness to pay for waste management 

services 

Y= f(X1, X2, X3, X4, X5)   (13) 

Y= b0 + b1X1 + b2X2+ b3X3 +b4X4 + b5X5 +u   (14) 

 Y= demand for waste management services (1=Yes; 0=No), X1= Age (in years), X2= Gender (1=Female; 0=Male), 

X3= marital status (1=married; 0=unmarried), X4= education (number of years in school for the head of the family), 

X5= family size (in person), b1-5 = coefficient of explanatory variables, u= Error term. 

Model 2: Impact of economic factors on preference and willingness to pay for waste management services 

Y= f(X1, X2, X3)    (15) 

Y= b0 + b1X1 + b2X2+ b3X3 +u    (16) 

Y= demand for waste management services (1=Yes; 0=No), X1= cost of waste management service (1=Affordable; 

0=Not affordable), X2= household monthly income (N), X3= house ownership (1= Owner of house; 0=Non-owner of 

house), X4= awareness about environmental implication of waste management service (1=Yes; 0=No), b1-4= 

coefficient of explanatory variables, u= error term. 

4. Results and Discussion 

Table1: Socioeconomic and demographic distribution of respondents 

 Frequency Percentage 

Demand for Waste Management services   

Yes 123 82.0% 

No 27 18.0% 

Total 150 100.0% 

   

Age (in years)   

20-29 years 12 8.0% 

30-39years 28 18.7% 

40-49years 38 25.3% 

50-59years 43 28.7% 

Above 60 years 29 19.3% 

Total 150 100.0% 

Gender   

Female 102 64.0% 

Male 48 32.0% 

Total 150 100.0% 

   

Occupational Status   

Employed 132 88.0% 

Unemployed 18 12.0% 

Total 150 100.0% 

Family Size   

1-3persons 33 22.0% 

4-6persons 88 58.7% 

Above 6 persons 29 19.3% 

Total 150 100.0% 

Source: Author’s Computation from Field Survey 

 



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Table 2: Economic factors influencing Household willingness to pay for Waste Management Services 

 Frequency Percentage 

   

Cost of Waste management  Services   

Affordable 140 93.3% 

Not affordable 10 6.7% 

Total 150 100.0% 

   

Household Monthly Income   

None 0 0 

Below N100, 000 105 70.0% 

N100, 000 – N200, 000 34 22.7% 

Above N200, 000 11 7.3% 

Total 150 100.0% 

   

   

Ownership Status   

Owner  95 63.3% 

Rented 55 36.7% 

Total 150 100.0% 

   

Awareness about Environmental Information   

Yes 130 86.7% 

No 20 13.3% 

Total 150 100.0% 

Source: Authors computation from field survey data 

In Table 1, it was revealed that 82% of the respondents are willing to pay for waste management services, 18% did 

not prefer and neither willing to pay for waste management services in Nsukka urban. Based on age distribution, 

12(8%) of the respondents are between 20-29years; 28(18.7%) are between 30-39 years; 38(25.3%) are between 40-

49 years; 43(28.7%) are between 50-59 years and 29(19.3%) are above 60 years. Based on gender distribution, 

102(68%) of the respondents, which constituted the majority are female while the remaining 48(32%) are male. 

Based on occupational status, 132(88%) of the respondents, which formed the majority are employed while the 

remaining 18(12%) are unemployed. Based on family size, 33(22%) of the respondents have a household size 

between 1-3persons; 88(58.7%) have between 4-6persons and 29(19.3%) have above 6 person in their family. On 

the economic factors affecting household preference and willingness to pay for waste management services, it was 

revealed that 140(93.3%), which is the majority, reported that the cost of waste management services is affordable 

while the remaining 10(6.7%) stated that it is unaffordable. Based on monthly income distribution, 105(70%) of the 

respondents earn below N100, 000; 34(22.7%) earn between N100, 000- N200, 000 and 11(7.3%) earn above N200, 

000. Based on ownership status, 95(63.3%) of the respondents are the owner of the house while the remaining 

55(36.7%) are leaving in rented apartment 

Table 3:  Probit regression result on the impact of cultural and demographic factors on Household willingness to 

pay for waste management services 

      
Variable Coefficient Std. Error z-Statistic Prob.   Remark 

            
C -4.0796 1.2345 -3.3041 0.0010 Significant 

AGE -0.0719 0.0210 -3.4197 0.0006 Significant 

GENDER 0.5697 0.3767 1.5149 0.1298 Non- Significant 

MARITAL -0.2201 0.6214 -0.3542 0.7232 Non- Significant 

EDUCATION 0.1515 0.0658 10.7833 0.0000 Significant 

SIZE 0.6149 0.1193 5.1411 0.0000 Significant 

      



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McFadden R-squared 0.5881     Mean dependent var 0.8200  

LR statistic 83.1726     Avg. log likelihood -0.1942  

Prob(LR statistic) 0.0000     

            
Source: Authors computation from field survey data 

 

The result in Table 3 shows that age, education and family size are the significant cultural and demographic factors 

that affects the demand for waste management while marital status and gender does not have strong influence in 

determining household willingness and preference for waste management service. Also, as family size becomes 

larger, the probability of such family to demand for waste management services will increase because the family 

will tend to generate more waste over time. In furtherance, being educated increases the probability of demanding 

for waste management services as they can afford the inherent cost and are aware of the health implication of poor 

waste management. Being married increases the likelihood of demanding for waste management services since more 

waste will be generated over time and similarly female head of the family tends to increase the probability 

demanding for waste management service than the family with male head since the male head is not involved in the 

waste disposal. The findings its an indication that demographic factors combine plays significant role in household 

waste management service preference and willingness to pay.  

Table 4: Probit regression result on the impact of economic factors on household willingness to pay for waste 

management  

            
Variable Coefficient Std. Error z-Statistic Prob.   Remarks 

      
      

C -3.3799 0.8690 -3.8894 0.0001 Significant 

COST 2.7935 0.6188 4.5167 0.0000 Significant 

INCOME 1.27E-05 4.59E-06 2.7718 0.0056 Significant 

OWNERSHIP 0.0154 0.2983 0.0514 0.9590 Not-Significant 

AWARENESS 1.0424 0.3855 2.7048 0.0068 Significant 

            
McFadden R-squared 0.6214     Mean dependent var 0.8200  

LR statistic 45.4458     Avg. log likelihood -0.3197  

Prob(LR statistic) 0.0000     

            
Source: Authors computation from field survey data 

The results in Table 4 depicts that cost of waste management in terms of affordability, household average monthly 

income and awareness of the environmental factor of waste management are the significant economic determinants 

of demand for waste management services while ownership of the property, whether the household own the house 

they live or not does not play any significant role in household preference and willingness to pay for waste 

management services. Cost of waste management, household income, environmental awareness and ownership 

positively impacts on demand for waste management. For example, if people can afford the cost of waste 

management services, the probability of them demanding for such services will increase. Also, as individual’s 

income rises, chances are that there will be an increase in the demand for waste management services. Being aware 

of the environmental consequences of improper waste management or being aware of waste management service 

will increases the likelihood of demanding for waste management services and owners of house tends to increase the 

willingness of the household preference and willingness to pay for waste management services. 

5. Conclusion  

This study has made considerable effort to examine household willingness and preferences to pay for waste 

management services. From the analysis, it is evident that household head age, family size and level of education of 

the household head plays significant role in their preference and willingness to pay for waste management services. 

Beside, cost of waste management service in terms of affordability, household income and awareness influences 

household preference and willingness to pay for waste management services. Arising from these findings, 

government should subsidies the price of waste management service to encourage more households to demand for 

waste management services.  

 

 



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