Jurnal Ekonomi & Studi Pembangunan    Volume 21 Nomor 1, April 2020  

 
 
 
 
 
 
 
 
 
 
 

 
 

Article Type: Research Paper 
  

Total Financing of Islamic Rural Banks  
and Regional Macroeconomic Factors:  
A Dynamic Panel Approach 
 
Faaza Fakhrunnas 

 
Abstract: Islamic rural bank is a special purpose of Islamic banks, which finances 
Small and Medium Enterprises (SMEs) in Indonesia. This research aims to 
investigate a long-run relationship of the influence of regional inflation and 
economic growth on the total financing of Islamic rural banks in Indonesia. By 
adopting panel dynamics approach, this study utilized a biggest Islamic rural bank 
in each Indonesian province from 2013 to 2017 based on quarterly data, which 
consisted of 420 observation period. The result of this study exhibited that a long-
run relationship existed among regional inflation and economic growth to the 
total financing of Islamic rural banks. Specifically, the long-run relationship also 
appeared in big size Islamic rural banks, although it was not in small and medium 
size Islamic rural banks. Variance decompositions and Impulse response factors 
analysis’ result explained that the majority of all regional macroeconomic 
variables contributed to the influence of total financing on the Islamic rural bank. 
The directions of its influence were different from each sample group. According 
to the results, Indonesian central bank must maintain inflation rate in the safety 
level for financial industry by following determined inflation target through 
appropriate monetary policies. This recommendation for the central bank is 
aimed to maintain and boost Islamic rural banks’ financing that will give benefits 
for financial industry in Indonesia. 
Keywords: Total Financing, Regional Inflation, Regional Economic Growth. 
JEL Classification: E00. E42, G00. 
 

 
 

Introduction 
 
In terms of economic conditions, Indonesia, as one of the most populous 
countries in the world, has an economic atmosphere mainly propped by 
Small Medium Enterprises (SMEs). Asia Pacific Foundation of Canada 
(2018) in its report notes that SMEs in Indonesia contribute about 60% of 
the total Gross Domestic Product (GDP). However, one of the foremost 
problems of SMEs, including in Indonesia, is access to capital (Chiu, 2017). 
Thus, the role of the Islamic bank industry led by Islamic rural banks is 
pivotal to serve SMEs’ needs as a capital provider, especially at the 
microfinancing level. As an intermediary institution for SMEs, the bank has 
a role in linking from a surplus unit to a deficit unit by utilizing several 
modes of contract. The financing activity is not only about the capital, but 
also fulfilling the requirement of Islam to avoid riba as the value of the  

 
AFFILIATION: 
Department of Economics,  
Faculty Business and Economics, 
Universitas Islam Indonesia. 
Yogyakarta. Indonesia. 
 
*CORRESPONDENCE: 
Fakhrunnasfaaza@uii.ac.id 
 
THIS ARTICLE IS AVALILABLE IN: 
http://journal.umy.ac.id/index.php/esp  

 
DOI: 10.18196/jesp.21.1.5028 
 
CITATION: 
Fakhrunnas, F. (2020). Total 
Financing of Islamic Rural Banks 
and Regional Macroeconomic 
Factors: A Dynamic Panel 
Approach. Jurnal Ekonomi & Studi 
Pembangunan, 21(1), 1-15. 
 
ARTICLE HISTORY 
Received: 
12 January 2020 
Reviewed: 
19 April 2020 
Revised: 
20 April 2020 
Accepted: 
21 April 2020 

 

mailto:Fakhrunnasfaaza@uii.ac.id
http://journal.umy.ac.id/index.php/esp
https://journal.umy.ac.id/index.php/esp/article/view/7993
https://journal.umy.ac.id/index.php/esp


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Jurnal Ekonomi & Studi Pembangunan, 2020 | 2 

Indonesian majority population who embrace Islam as a belief (Juwana, Berlinti, & Dewi, 
2014). 
 
Regarding the development of Islamic banks in Indonesia, the establishment of the bank 
was firstly driven by Islamic society with forming Islamic microfinance in 1990. Sari, 
Bahari, and Hamat (2016) added that since the willingness of the Islamic society in 
Indonesia was supported by many Islamic scholars who issued the fatwa of Indonesian 
Ulama Council (Majelis Ulama Indonesia) to prohibit usury (riba), the first Islamic bank 
was finally established in 1992, named Bank Muamalat Indonesia (BMI). For the current 
development, at the beginning of 2018, Indonesian Financial Service Authority stated that 
Islamic banking industry consisted of 13 Islamic commercial banks, 21 conventional banks 
having Islamic business unit, and 167 Islamic rural banks, with total asset more than IDR 
424 trillion, and it was equal to almost 6% of market share in the Indonesian banking 
industry (OJK, 2018). 
 
According to the data issued by the Indonesian Financial Service Authority in 2018, Islamic 
rural banks in Indonesia provided several modes of financing, such as mudarabah, 
musharakah, murabahah, ijarah, istishna, salam, qard, and hybrid contract (OJK, 2018). 
The data is exhibited in Figure 1. in which generally, all transactions in each contract had 
a positive trend. In addition, murabahah contract, as a cost-plus financing contract, 
remained dominant compared to others. The total financing from murabahah contract 
approximately reached IDR 6 trillion in the year of 2017. This number contributed around 
80% on average from 2013 to 2017. Meanwhile, equity-based financing, proposed by 
mudharabah and musharakah, had less financing numbers as opposed to murabahah. The 
average number of equity-based financing each year was not more than IDR 1 trillion.  In 
another method of contract, the only a hybrid contract, which had more than 5% of total 
financing performed by Islamic rural banks in Indonesia, was equal to almost IDR 500 
billion on average for every year. 
 

 
 

Figure 1 Islamic Rural Bank Financing in Indonesia Period 2013 to 2017 (In IDR Million) 
Source: OJK (2018) 

 
 

IDR 0

IDR 1,000,000

IDR 2,000,000

IDR 3,000,000

IDR 4,000,000

IDR 5,000,000

IDR 6,000,000

IDR 7,000,000

2013 2014 2015 2016 2017

Mudharabah Musyarakah Murabahah Salam

Istishna Ijarah Qardh Multijasa



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The evidence from the figure also portrays that the majority of financing activity 
conducted by Indonesian Islamic rural banking adopted debt-based financing, which has 
been similar to the conventional banks because it has been alleged to have a strong 
relationship to interest rate (Chong & Liu, 2009). Furthermore, Abedifar, Molyneux, and 
Tarazi (2013) stated that every method of financing would have unique exposure to 
macroeconomic risk, which would influence the Islamic bank’s financial performance. The 
transmission of macroeconomic variables, such as inflation, economic growth, and its 
influence on the bank’s financing activity, can be seen in many research. Benczúr, 
Karagiannis, and Kvedaras (2018) confirmed that economic growth influenced financing 
activity in the bank.  Economic growth is one of the signals to assess the economic 
conditions in certain regions. In a good economic growth, business activities tend to have 
a good response from society to have higher demands for goods and services. Then, 
financing activity will support these business activities to keep growing. Zarrouk, Ben 
Jedidia, and Moualhi (2016) believed that an Islamic bank would be affected by 
macroeconomic conditions in which the bank preferred to have good economic growth. 
The bank tends to have better performance, while economic conditions incline to rise. 
Zarrouk et al. (2016) stressed that an Islamic bank would engage in more financing activity 
during good economic circumstances. Fakhrunnas, Dari, and Mifrahi (2018) also declared 
that the Gross Domestic Product (GDP) affected banking performance in Indonesia. 
However, there were differences in the result when the sample was differentiated 
between Islamic banks and conventional banks. Adopting Fully Modified Ordinary Least 
Square (FMOLS) and Dynamic Ordinary Least Square (DOLS) model, the conventional bank 
has pro-cyclical response performance to GDP. On the other hand, the performance of 
Islamic banks has not been influenced significantly by GDP. From this finding, it can be 
concluded that Islamic bank had more resilience to GDP movement risk than its 
counterparty (Fakhrunnas et al., 2018). 
 
Another factor that affects the Islamic bank’s financial performance is inflation 
(Fakhrunnas & Imron, 2019). Inflation is considered as one of the key factors which can 
determine economic condition. Imam and Kpodar (2016) claim that inflation may lower 
economic growth because of its effect on increasing prices and decreasing society’s 
purchasing power. Inflation had a direct effect on the bank’s financing in the financial 
market. This argument was conveyed by Carlos, Ferreira, and Mendonça (2011), who 
found that the central bank might increase the interest rate to limit the money supply in 
the market due to an increase in inflation. However, inflation controlling, which may 
increase interest rate through central bank monetary policy, can become a burden on 
Islamic banks while giving financing to deficit units. As a result, a rise in inflation will lessen 
Islamic bank financing in the market. The reason for this occurrence is stated by Chong 
and Liu (2009) who believe that Islamic bank still depends on the interest rate as a 
benchmark to determine the return. The use of interest rate as a benchmark is mainly 
adopted in debt-based contracts, such as murabahah.  
 
The unfavorable effect of inflation on the bank’s financing was also found by Boyd and 
Champ (2006). They added that inflation would negatively affect bank profitability in the 
condition that the bank had less awareness while the inflation started to move upward. 
Different from other results, Tan and Floros (2012) uncovered that inflation had a 



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significant relationship with the bank’s performance. The bank is considered to have a 
favorable adjustment to a change of interest rate during undesirable economic 
circumstances that create a faster increase in revenue than the cost spent by the bank. 
The same finding is also obtained by other studies, such as Garcia-Herrero, Gavilá, and 
Santabárbara (2009), and Sufian (2009). In terms of the bank size, Ibrahim, and Rizvi 
(2017) claims that Islam bank that has a big size is more stable compared to other sizes. 
This statement is supported by several reasons; such is the big bank has better risk 
management and a bigger economic scale, which can create more efficient and effective 
banking operations.  
 
The majority of the previous research about the bank’s financing determinants mainly 
utilized Islamic commercial banks as the research object. The domination of Islamic 
commercial banks as research objects might be caused by the availability of the data 
across countries. However, the use of Islamic rural banks as an object study that serves 
the society at a microfinancing level is still rare when it is referred to as indexed 
international publication. The research object is believed to be essential to reveal its 
uniqueness as a sort of Islamic banking operating at microfinance level. As a research 
contribution, this study aims to measure the Indonesian Islamic rural bank financing in a 
short and long-run analysis by engaging regional macroeconomic factors in each province 
as independent variables. Specifically, this study tries to answer two main research 
questions; (1) what is the influence of a short and long-run economic growth and (2) what 
is the influence of short and long-run inflation.  
 
This paper consists of the introduction as the first section, and it is followed by the 
research method. In the third section, results and discussion will be explained while the 
fourth section shows the conclusion. 
 
 

Research Method 
 

The description of the variables used is shown in Table 1. It consisted of LN_TP as a 
dependent variable that reflected total financing in Islamic rural banks. REG and RINF 
were the independent variables, which would test their influence on the total financing 
of Islamic rural banks. Moreover, LN_SIZE would be treated as a control variable in this 
research. By adopting purposive samples, this research only selected the biggest size of 
Islamic rural banks that operated in each province, which had complete financial reports 
in the observation period. The biggest Islamic rural bank in each province was believed to 
have an economic scale and efficiency to be measured its performance towards the 
influence of regional economic factors. Based on data selection, this study obtained 21 
Islamic rural banks in 21 provinces, which resulted in 420 banks in the observation period.  
All the data were in a balanced panel form, where it was started from 2013 to 2017 in the 
quarterly period.  Then, it was retrieved from the Indonesian Financial Service Authority 
and Indonesian Statistic Bureau. 
 
 
 



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Table 1 Descriptive Information of Variables Used 

Variable Notation Description Data Source 

Total Financing LN_TP Log total financing of Islamic 
rural bank 

Indonesian Financial 
Service Authority 

Regional 
Economic 
Growth 

REG Regional economic growth in 
each province in percentage 

Indonesian Statistic 
Bureau 

Regional 
Inflation 

RINF Regional economic growth in 
each province in percentage 

Indonesian Statistic 
Bureau 

Bank Size LN_SIZE Log Islamic rural bank’s total 
asset 

Indonesian Financial 
Service Authority 

 
Model Specification  
 
In this paper, panel data was adopted. It means that cross-section and time-series data 
were pooled to measure the influence of regional macroeconomic factors, in which the 
proxies were regional inflation and regional economic growth on the total financing of 
Islamic rural banks. From that objective, the equation is as follow; 
 

𝐿𝑜𝑔𝑇𝐹 = 𝑓(𝑅𝐼𝑁𝐹, 𝑅𝐸𝐺, 𝐿𝑁_𝑆𝐼𝑍𝐸) 

 
From the above equation, the empirical model form can be elaborated, as below, 
 

𝐿𝑁_𝑇𝑃𝑖𝑡 = 𝛽0 + 𝛽1𝑅𝐼𝑁𝐹𝑖𝑡 + 𝛽2𝑅𝐸𝐺𝑖𝑡 + 𝛽3𝐿𝑁_𝑆𝐼𝑍𝐸𝑖𝑡 + 𝜀𝑖𝑡  

 
β0 expresses the constant term of the equation, in which β1 to β3 are estimated 
parameters in the model. In addition, I describes cross-section data, reflecting the biggest 
Islamic rural bank in each province level, t explains about time-series data, and εit 
appoints an error term in this model.   
 
Estimation Procedure 
 
Panel dynamics were applied to analyze the relationship among variables in this research. 
To perform panel dynamics, cointegration among variables should be attained, which was 
firstly checked by unit-roots tests. Pedroni (2000) argues that panel dynamics provide an 
option for the researchers to pool the long-run information inside the panel data, and it 
allows long dynamic and fixed effect exists in the estimation model. Panel dynamics also 
give a chance to the researcher to have extensive data (Perron, 1991). Moreover, Pedroni 
(2000, 2004) states that cross-section data are permitted for a presence that reflects 
interdependence with a different individual effect. There were several stages to  conduct 
panel dynamics, which would be explained in the next discussion.  
 
Panel Cointegration Test 
 
To perform the panel cointegration test, the unit-roots test should be conducted 
previously. The Unit-roots test would measure the stationarity of the data, whether it 



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Jurnal Ekonomi & Studi Pembangunan, 2020 | 6 

stood at the level of the first difference and second difference. Some mathematical 
measurements can be adopted to conduct unit-root tests, such as Im, Pesaran, and Shin 
W-stat (IPS), ADF-fisher, and PP-Fisher, in which the null hypothesis of the test is non-
stationary for all unit-roots test (Zulkhibri, Naiya, & Ghazal, 2015). When the test results 
show the stationarity data in the first difference, then the cointegration panel can be 
applied to assess the long-term effect of the future relationship among observed 
variables.  
 
Levin, Lin, and Chu (2002) suggest the model of panel unit-roots estimate long-run 
relationship, as follows: 
 

𝑦𝑖𝑡 = 𝜌𝑖 𝑦𝑖,𝑡−1 + 𝑧′𝑖𝑡𝛾 + 𝜇𝑖𝑡  
 
Where 𝑧𝑖𝑡is defined as deterministic variables, 𝜇𝑖𝑡 is as iid (0, σ

2), and 𝜌𝑖 = 𝜌. The statistic 
test is exactly at t-statistic on 𝜌 in which it is explained as below; 
 

𝑡𝜌 =  
(−1)𝑏 ± √𝑏2 − 4𝑎𝑐

2𝑎
 

 
The general formula for Pedroni tests is as follow; 
  
Panel rho-statistic: 
 

𝑍𝜌 = (∑ ∑ �̂�11𝑖
−2

𝑇

𝑡=1

𝑁

i=1

�̂�𝑖𝑡−1
2 )

−1

∑ ∑ �̂�11𝑖(�̂�𝑖𝑡−1∆�̂�𝑖𝑡−𝜆𝑖)

𝑇

𝑡=1

𝑁

i=1

 

 
Panel PP-statistic: 
 

𝑍𝑃𝑃 = (�̂�
2 ∑ ∑ �̂�11𝑖

−2

𝑇

𝑡=1

𝑁

i=1

�̂�𝑖𝑡−1
2 )

−1/2

∑ ∑ �̂�11𝑖(�̂�𝑖𝑡−1∆�̂�𝑖𝑡−𝜆𝑖)

𝑇

𝑡=1

𝑁

i=1

 

 
Panel ADF-statistic: 
 

𝑍𝑡 = (�̂�
∗2 ∑ ∑ �̂�11𝑖

−2

𝑇

𝑡=1

𝑁

i=1

�̂�𝑖𝑡−1
∗2 )

−1/2

∑ ∑ �̂�11𝑖(�̂�𝑖𝑡−1
∗ ∆�̂�𝑖𝑡

∗ )

𝑇

𝑡=1

𝑁

i=1

  

 
Group rho-statistic: 
 

�̂�𝜌 = ∑ (∑ �̂�𝑖𝑡−1
2

𝑇

𝑡=1

)

−1𝑁

𝑖=1

∑(�̂�𝑖𝑡−1∆�̂�𝑖𝑡 − �̂�𝑖 )

𝑇

i=1

 

 
 
 



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Group PP-statistic: 
 

�̂�𝑡 = ∑ (�̂�
2 ∑ �̂�𝑖𝑡−1

2

𝑇

𝑡=1

)

−1/2𝑁

𝑖=1

∑(�̂�𝑖𝑡−1∆�̂�𝑖𝑡 − �̂�𝑖)

𝑇

i=1

 

Group ADF-statistic: 
 

�̂�𝑃𝑃 = ∑ (∑ �̂�𝑖
−2�̂�𝑖𝑡−1

∗2

𝑇

𝑡=1

)

−1/2𝑁

𝑖=1

∑(�̂�𝑖𝑡−1
∗ ∆�̂�𝑖𝑡

∗ )

𝑇

i=1

 

 
Variance Decompositions and Impulse Response Factors 
 
The use of Variance Decompositions (VDs) and Impulse Response Factors (IRFs) aimed to 
measure the multivariate causalities among variables. Moreover, it can capture the 
sample more in the observation period in terms of relative strength and its causality 
(Rosylin & Bahlous, 2013). VDs would portray the causality relationship among the 
observed variables. VDs also provided a variety of changes in terms of the value of a 
variable over the observed period. In addition, to estimate IFRs, Panel VAR analysis should 
be conducted to understand the long-term effect of the determinants of Islamic banks’ 
financing. Pesaran and Shin (1999) believed that IFRS would assess the time profile of the 
effect shock from the determined point of time to the future value of the observed 
variable in a dynamic system.  Not only giving the future prediction, but IFRs would also 
provide future direction of the observed variable. 
 
 

Result and Discussion 
 

Unit roots and Panel Cointegration Result 
 
The unit-roots test was used to check the stationary of the variables. This test would 
assess whether the variables were stationary at a level or at 1st difference as a 
requirement to apply further tests (Pedroni, 2004). Table 2 describes the unit-roots test 
for Islamic rural banks in the observed period. From the table, it can be seen that only 
RINF had stationarity at the level by adopting an individual intercept. However, the results 
were different when individual intercept and trend were applied to measure stationarity. 
RINF, REG, and LN_SIZE had stationarity at the level, but not for LN_TP. Besides, both 
applying individual intercept only and individual intercept and trend were stationary at 
the 1st level. This result is the same as the perspective of Im Pesaran Shin, Augmented-
Dickey Fuller (ADF), and Philip Perron (PP). From the result mentioned above, all samples 
in this research were stationary at the 1st level, and it fulfilled the requirement to conduct 
a cointegration test that measured the long-run relationship among the variables. 
 
In the cointegration test, several approaches were carried out. Within the dimension 
approach, panel v-statistic, panel rho-statistic, panel PP-statistic, and Panel ADF-statistic 
were applied. In addition, between dimensions, group rho-statistic, group PP-statistic, and 
Group ADF-statistic were utilized to assess the research model.  As suggested by Rosylin 



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and Bahlous (2013); and Fakhrunnas et al. (2018), the result of the cointegration test can 
be seen from the majority result of all approaches. At least forth out of seven tests were 
significant at level 1%, 5%, and 10%. Table 3. exhibits the result of the panel cointegration 
test, which portrayed the different results among observed samples that were 
differentiated based on the Islamic rural bank’s size.  
 
From all samples, Islamic rural bank financing (LN_TP) had a long-run relationship toward 
the endogenous variables, such as regional inflation and economic growth. This finding is 
supported by (Farhan, Sattar, Chaudhry, and Khalil, 2012), which stated that economic 
growth would impact the bank’s performance. Furthermore, Garcia-Herrero et al., (2009); 
and Sufian (2009) also mentioned that inflation would affect the bank’s performance. A 
long-run relationship among the variables also indicated that the bank should be aware 
of the movement of regional economic growth and regional inflation at the province level 
because it had a long-run effect on the total financing in Islamic rural banks.  
 
When the sample was separated based on the size of the Islamic rural bank, the result of 
the cointegration test was different. From the small size Islamic rural bank, the 
cointegration did not exist since only Panel ADF-stat and Group ADF-stat were significant 
in the 10% and 5% level, respectively. The finding implies that there was no long-run 
relationship of small size Islamic rural bank’s financing to regional inflation and economic 
growth. The reason might be caused by the small size of Islamic rural bank, which did not 
have a large-scale financing activity, did not influence the regional inflation, and economic 
growth in the long-term period. This finding is also different from Ibrahim and Rizvi (2017), 
who stated that a small size Islamic bank was riskier than the big size one. The finding of 
small size Islamic rural banks is almost the same as the medium size of Islamic rural banks. 
Only Panel PP-stat, Group PP-stat, and Group ADF-stat that had a significant result in the 
1%-10% level of significance. From an inward-looking Islamic rural bank, both sizes of the 
bank might also be resilient to regional inflation and economic growth because there was 
no long-run relationship toward observed variables in this research (Fakhrunnas et al., 
2018). 
 
For the big-sized Islamic rural bank, the result was different from other sizes, which 
exhibited long-run relationships among total financing, regional inflation, and economic 
growth appear. The finding explained that there was an influence of regional inflation and 
economic growth on the total financing of the bank. It is supported by  Boyd and Champ 
(2006), Tan and Floros (2012), and Farhan et al. (2012), who also concluded that the bank 
performance would be affected by macroeconomic variables, such as inflation and 
economic growth. The high exposure to the external factors does not mean that Islamic 
rural bank is weak to manage the risk. The advantage of having a big size of Islamic rural 
bank is to possess a wide economic scale compared to other Islamic rural bank’s sizes. The 
big size bank internally tends to have good risk management, and it creates stability in the 
banking operation (Ibrahim & Rizvi, 2017). 
 
 



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Table 2 Panel Unit Root Tests of Islamic Rural Bank in Indonesia Period 2013Q1-2017Q4    

Notes: The optimal lag length is based on Schwarz information criteria, which are automatically selected. The Null hypothesis for all tests is non-stationary 
in which ***, ** and* denote as significant at 1% level, significant at 5% level and significant at 10% level 
 
Table 3 Panel Cointegration Tests of Islamic Rural Bank in Indonesia Period 2013Q1-2017Q4 

Cointegration Test 
 

All Sample Small Size Medium Size Big Size 

Within Dimension  

Panel v-stat -0.858 0.265 -0.238 2.030** 

Panel rho-stat -0.503 0.863 0.841 -0.501 

Panel PP-stat -2.571*** -0.253 -1.543* -4.354*** 

Panel ADF-stat -3.036*** -1.522* -1.213 -4.675*** 

Between Dimension 

Group rho-stat 1.74 1.818 2.296 0.830 

Group PP-stat -2.748*** -0.045 -3.241*** -6.519*** 

Group ADF-stat -4.422*** -2.280** -1.801** -5.865*** 

Notes:  The symbol of ***, ** and* denotes as significant at 1% level, significant at 5% level and significant at 10% level 
 
 
 
 

 

Variable 

Individual Intercept Individual Intercept and Trend 

At Level first Difference At Level first Difference 

IPS ADF PP IPS ADF PP IPS ADF PP IPS ADF PP 

LN_TP 0.495 40.20 64.12 -8.847*** 157.5*** 483.6*** 0.807 32.72 40.58 -8.368*** 142.6*** 212.0*** 

RINF  -4.616*** 91.38*** 143.7*** -12.35*** 217.6*** 1480*** -3.466*** 83.62*** 141.2*** -9.465*** 160.7*** 376.9*** 

REG -1.191 49.09 96.04 -11.91*** 208.7*** 941.6*** -3.498*** 74.99*** 114.4*** -8.764*** 148.9*** 356.1*** 

LN_SIZE 1.610 35.36 38.09 -11.51*** 203.9*** 710.7*** -2.416*** 73.87*** 60.32*** -9.642*** 165.0*** 267.9*** 



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Variance Decompositions Result 
 
Table 4 Variance Decompositions Result 

 

 Period  Variance Decomposition of LN_TP (All 
Sample) 

 Variance Decomposition of LN_TP (Small Size 
Bank) 

 Variance Decomposition of LN_TP (Medium 
Size Bank) 

 Variance Decomposition of LN_TP (Big Size 
Bank) 

S.E. LN_TP RINF REG LN_SIZE S.E. LN_TP RINF REG LN_SIZE S.E. LN_TP RINF REG LN_SIZE S.E. LN_TP RINF REG LN_SIZE 

2013Q1 0.11 100.00 0.00 0.00 0.00 0.21 100.00 0.00 0.00 0.00 0.06 100 0 0 0 0.06 100.00 0.00 0.00 0.00 

2013Q2 0.17 97.16 0.00 0.30 2.54 0.31 98.59 0.13 0.57 0.71 0.11 98.524 0.04 0.81 0.62 0.10 92.11 0.17 0.02 7.70 

2013Q3 0.21 93.01 0.09 0.20 6.70 0.38 93.72 0.29 0.52 5.47 0.14 97.522 0.16 0.66 1.66 0.13 87.03 0.37 0.12 12.48 

2013Q4 0.25 87.91 0.24 0.17 11.68 0.42 89.31 0.62 0.43 9.65 0.17 96.542 0.11 1.05 2.30 0.16 87.99 0.60 0.20 11.21 

2014Q1 0.27 82.37 0.37 0.26 16.99 0.46 85.35 1.00 0.37 13.28 0.19 95.168 0.08 1.82 2.93 0.19 88.24 0.69 0.21 10.86 

2014Q2 0.30 76.85 0.47 0.43 22.26 0.49 81.99 1.58 0.33 16.10 0.22 93.53 0.07 2.71 3.69 0.21 87.46 0.87 0.22 11.46 

2014Q3 0.32 71.58 0.51 0.66 27.25 0.51 79.14 2.20 0.30 18.36 0.24 91.69 0.08 3.79 4.43 0.23 87.31 1.02 0.22 11.44 

2014Q4 0.34 66.70 0.51 0.93 31.86 0.53 76.61 2.79 0.28 20.31 0.26 89.713 0.11 5.01 5.16 0.25 87.40 1.14 0.23 11.23 

2015Q1 0.36 62.26 0.48 1.22 36.03 0.55 74.38 3.41 0.27 21.94 0.27 87.629 0.16 6.33 5.88 0.26 87.26 1.22 0.23 11.29 

2015Q2 0.38 58.27 0.44 1.52 39.77 0.57 72.40 4.01 0.26 23.33 0.29 85.496 0.23 7.69 6.59 0.28 87.14 1.29 0.23 11.34 

2015Q3 0.40 54.69 0.41 1.81 43.09 0.58 70.62 4.56 0.26 24.56 0.3 83.356 0.30 9.08 7.27 0.29 87.14 1.33 0.23 11.29 

2015Q4 0.42 51.49 0.37 2.10 46.04 0.59 69.00 5.09 0.26 25.65 0.32 81.235 0.38 10.46 7.92 0.31 87.12 1.35 0.24 11.29 

2016Q1 0.43 48.62 0.35 2.38 48.65 0.61 67.53 5.59 0.25 26.62 0.33 79.161 0.47 11.83 8.53 0.32 87.08 1.37 0.24 11.32 

2016Q2 0.45 46.06 0.33 2.64 50.97 0.62 66.19 6.05 0.25 27.51 0.35 77.149 0.57 13.17 9.12 0.33 87.06 1.38 0.24 11.32 

2016Q3 0.47 43.76 0.33 2.89 53.03 0.63 64.95 6.48 0.25 28.32 0.36 75.211 0.66 14.46 9.67 0.35 87.05 1.39 0.24 11.32 

2016Q4 0.48 41.69 0.33 3.12 54.86 0.65 63.81 6.88 0.25 29.06 0.37 73.356 0.76 15.71 10.18 0.36 87.03 1.40 0.24 11.33 

2017Q1 0.50 39.82 0.34 3.35 56.49 0.66 62.75 7.25 0.25 29.75 0.39 71.588 0.85 16.90 10.67 0.37 87.02 1.40 0.24 11.34 

2017Q2 0.51 38.13 0.36 3.55 57.96 0.67 61.77 7.59 0.25 30.39 0.4 69.907 0.94 18.03 11.12 0.38 87.01 1.41 0.24 11.34 

2017Q3 0.53 36.59 0.38 3.74 59.28 0.68 60.85 7.92 0.25 30.98 0.41 68.315 1.03 19.11 11.55 0.39 86.99 1.42 0.25 11.34 

2017Q4 0.54 35.20 0.41 3.92 60.46 0.70 60.00 8.22 0.25 31.53 0.43 66.809 1.12 20.13 11.94 0.40 86.98 1.43 0.25 11.34 



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Jurnal Ekonomi & Studi Pembangunan, 2020 | 11 

Rosylin and Bahlous (2013) explained that VDs would portray the influence of the 
independent variables on the dependent variable. Table 4. shows the VDs test result, 
which was divided by the characteristic of the sample according to the Islamic rural bank’s 
size.  In all samples, it can be seen that regional inflation affected 0.51% in the period of 
2014Q4 as the maximum point, even though after that period, it tended to decrease until 
the end of the observation period. On the other hand, regional economic growth was 
consistent to increase and had the maximum influence on Islamic rural bank’s financing 
at 3.92%. The Islamic rural bank’s size affected 60.46% of the bank’s financing in 2017Q4. 
For the small size Islamic rural bank, the influence of regional inflation on Islamic rural 
bank financing was consistent to increase time by time. The maximum influence was in 
2017Q4 that affected by 8.22% on the bank’s financing. However, the result was different 
from regional economic growth, in which the influence had a downward trend, which had 
the highest point in 2012Q2, amounting to 0.57%, and it reached the lowest influence in 
2017Q4, which was 0.25%. This finding implies that in the small size Islamic rural bank, 
regional inflation in the short run had a greater influence than regional economic growth. 
Moreover, the direction of the influence contradicted each sample group mentioned 
above. 
 
For the medium size Islamic rural bank, the influence of regional inflation had an upward 
trend, which had a peak point at 1.12%, which reflected that the effect of regional 
inflation on total financing of Islamic rural banks was at that percentage. The same trend 
was also possessed by regional economic growth, which had the optimum influence on 
Islamic rural bank’s total financing at 20.13%. The influence of size to Islamic rural bank’s 
total financing was lower than the small size Islamic rural bank, which was 11.94% and 
31.53%, respectively. Besides, the big size Islamic rural bank in the short run had the same 
trend as medium size Islamic rural bank. However, there was a difference in terms of the 
number. In the regional inflation variable, the minimum to maximum influence on total 
financing of Islamic rural banks was from 0.17% to 1.43%. Furthermore, regional economic 
growth only had a small influence on the total financing of Islamic rural banks, which was 
from 0.02% to 0.25%. According to the result discussed previously, in the short run, the 
influence of independent variables on the dependent variable varied. It connotes that 
every Islamic rural bank, which was grouped based on size, had a specific result in each 
group. 
 
Impulse Response Factors 
 
Impulse Response Factors (IRFs) were employed to understand each direction of the 
independent variable to the dependent variable in each group of the sample. Pesaran and 
Shin (1999) stated that IRFs would give information about the direction of one variable to 
other variables in each step of the observation period. The period used in IFRS was 20 
observation period, which started from the 1st quarter of 2013 to the 4th quarter of 2017 
with applying Non-factorized One S.D IRFs. From all samples, regional inflation tended to 
have an upward movement to influence the total financing of Islamic rural banks. In the 
beginning, the movement of regional inflation toward total financing almost increased in 
the 2nd quarter of 2013, and it dropped in the 3rd quarter of 2017, then it increased 
consistently, and it tended to be stable in the 1st quarter of 2016. In addition, regional 
economic growth tended to have fluctuated direction in terms of the influence on total 



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Jurnal Ekonomi & Studi Pembangunan, 2020 | 12 

financing of Islamic rural banks. Starting to rise in the 1st quarter of 2013, the regional 
economic growth had a negative direction and was below the horizontal zero lines during 
the observation period. On the other hand, the size of Islamic rural banks has increased 
dramatically since around the 2nd period of observation, which was in the 2nd quarter of 
2013. Then, the direct effect of financing tended to be stable. 
 
Figure 2 Impulse Response Factor for All Sample, Small, Medium and Big Size Bank 
 

 
 
For the small size Islamic rural bank, regional inflation had a positive upward trend toward 
total financing. The trend consistently increased until the 1st quarter of 2015, and it 
moved steadily until the end of the period. That condition was different from regional 
economic growth, which had a dynamic movement along the observation period. 
Increasing sharply in the beginning, the influence of regional inflation on the total 
financing of Islamic rural banks dropped below the zero lines until the 3rd quarter of 2013. 
After that date, the influence rose under zero line and inclined stagnant since the 1st 
quarter of 2014 to the end of the observation period. Regarding medium size Islamic rural 
banks, the variable of regional inflation overall had a negative trend toward total financing 
of Islamic rural banks during the observation period, even though in the 2nd quarter of 
2013, it had an upward trend until the 3rd quarter of 2013, then it fell in the next period. 
In addition, regional economic growth regularly increased until the 4th quarter of 2017. 
Dissimilar to regional economic growth, size had a rise in a direction until the 4th quarter 
of 2013, and it plunged until the end of the period. 
 
Lastly, big size Islamic rural banks had a different direction from other samples’ groups 
toward total financing. Regional inflation showed an upward movement toward total 
financing; however, it fell from 4th quarter 2013 until the end of the observation period 
below the zero lines. From the perspective of regional economic growth to total financing 
of Islamic rural banks, downward movement occurred until the 2nd quarter 2013; after 
that, it increased until around the 4th quarter of 2013. Next, the direction fluctuated 

-.1

.0

.1

.2

.3

.4

2 4 6 8 10 12 14 16 18 20

Response of RINF to Nonfactorized

One S.D. LN_TP Innovation

-.12

-.08

-.04

.00

.04

2 4 6 8 10 12 14 16 18 20

Response of REG to Nonfactorized

One S.D. LN_TP Innovation

.000

.004

.008

.012

.016

.020

.024

2 4 6 8 10 12 14 16 18 20

Response of LN_SIZE to Nonfactorized

One S.D. LN_TP Innovation

.0

.1

.2

.3

.4

2 4 6 8 10 12 14 16 18 20

Response of RINF to Nonfactorized

One S.D. LN_TP Innovation

-.02

-.01

.00

.01

.02

.03

.04

2 4 6 8 10 12 14 16 18 20

Response of REG to Nonfactorized

One S.D. LN_TP Innovation

.00

.01

.02

.03

.04

2 4 6 8 10 12 14 16 18 20

Response of LN_SIZE to Nonfactorized

One S.D. LN_TP Innovation

-.08

-.06

-.04

-.02

.00

.02

.04

2 4 6 8 10 12 14 16 18 20

Response of RINF to Nonfactorized

One S.D. LN_TP Innovation

.0

.1

.2

.3

.4

.5

.6

2 4 6 8 10 12 14 16 18 20

Response of REG to Nonfactorized

One S.D. LN_TP Innovation

.00

.01

.02

.03

.04

.05

.06

2 4 6 8 10 12 14 16 18 20

Response of LN_SIZE to Nonfactorized

One S.D. LN_TP Innovation

-.20

-.15

-.10

-.05

.00

.05

.10

2 4 6 8 10 12 14 16 18 20

Response of RINF to Nonfactorized

One S.D. LN_TP Innovation

-.20

-.15

-.10

-.05

.00

.05

2 4 6 8 10 12 14 16 18 20

Response of REG to Nonfactorized

One S.D. LN_TP Innovation

.00

.01

.02

.03

.04

2 4 6 8 10 12 14 16 18 20

Response of LN_SIZE to Nonfactorized

One S.D. LN_TP Innovation

 



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Jurnal Ekonomi & Studi Pembangunan, 2020 | 13 

around zero horizontal lines until the end of the observation period.  In terms of size effect 
on the total financing of Islamic rural banks, a dynamic movement also occurred in the 
relationship between variables. Starting to increase sharply from the beginning until 
around 4th quarter 2013, the movement after that decreased, and then a dynamic 
movement appeared after that period, which was a specific time, the influence of size on 
the total financing increased or decreased consecutively. 
 
 

Conclusion 
 

Total financing of Islamic rural banks, regional inflation, and regional economic growth 
had a long-run integration. This finding exhibits that independent variables in this 
research would determine the long-run effect on the total financing of Islamic rural banks 
in Indonesia. Specifically, the influence should be taken as a concern for big sized Islamic 
rural banks even though they tended to have better risk management than other sizes of 
Islamic rural banks. In the short-run analysis, by adopting variance decompositions, all 
regional macroeconomics variables influenced less than 10% on the total financing of 
Islamic rural banks throughout the observation period except regional economic growth 
for medium size Islamic rural banks, which reached 20.3% at the end of the observation 
period. In addition, the direction of all regional macroeconomic variables varied for each 
sample group in the short run. It can be interpreted that the regional macroeconomics 
variable effect on total financing might depend on the economic situation and Islamic 
rural bank’s financial soundness.  
 
According to the result, Islamic rural banks in Indonesia should be aware of the regional 
macroeconomic variables. It may be essential to maintain the stability of Islamic rural 
bank financing. Moreover, as an authority, the central bank is also recommended to 
maintain the inflation rate at the safety level for the financial industry by following the 
determined inflation target through appropriate monetary policy. This recommendation 
for the central bank is aimed to maintain and boost Islamic rural bank’s financing that will 
benefit the financial industry in Indonesia. To extend the findings for future research, this 
paper recommends examining the cut off level of macroeconomic variables that will 
contribute and not contribute to the financing development in Islamic rural banks. Thus, 
the effect of macroeconomic variables on Islamic rural bank financing can be 
comprehensively informed. 
 
Acknowledgment 
 
I gratefully acknowledge the support from Direktorat Penelitian dan Pengabdian 
Masyarakat (DPPM) Universitas Islam Indonesia for providing research grant (No: 
05/Dir/DPPM/70/Pen.Pemula/PII/XI/2019) to this study. 
 
 

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