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This paper aims to describe, compare and analyze liquidity policies from the central bank of Indonesia, particularly reserve requirements, with respect to Islamic as well as conventional banks.

This paper provides some critical assessments on the policy applied by the central bank of Indonesia to both Islamic and conventional banks with regards to the reserve requirements applied in the Indonesian banking system. The analysis is based on whether both policies (Islamic and conventional) provide fairness to the banks as well as whether those policies support the real sector. In addition, the current global practice is also briefly described as a justification of the important and relevance of the current study.

The authors find that the policy imposed on the Islamic banks is designed to boost the real sector, compared to that of conventional banks. For the policy with respect to Islamic banks, it recognizes the banks which have been doing well in their main role as financial intermediaries and “punishes” them when they fail to do so. This policy could not be found in the context of conventional banks.

The authors argue that the current approach used for Islamic banks can also be adopted and imposed on conventional banks. This leads to a more stable financial system, since it supports the real sector.

This paper is the first to analyze central bank policies with respect to banks (Islamic as well as conventional banks) in relation to their role as financial intermediaries.

The purpose of this paper is to examine the determinants of bank margins in the Yemeni banking sector for Islamic and conventional banks. The first objective is to investigate whether there is a significant difference between the margins of conventional and Islamic banks. The second objective is to examine whether efficiency represents an influential factor in determining bank margins for Islamic and conventional banks controlling for other micro and macro variables.

Using a data set of banks in Yemen for the post-liberalisation period from 1996 to 2011, the study utilises panel data with unbalanced observations for 16 banks, of which four are Islamic banks and the remainder conventional banks. Parametric and non-parametric techniques are complemented by dummy variable regression using random effects. Panel fixed effects regression was also undertaken as a robustness check.

The paper finds that the overall bank margin in Yemen has steadily decreased during the observation period with the exception of the year 2011. The parametric and non-parametric results show that the bank margins are significantly higher for conventional banks than for Islamic banks. The results provide evidence that bank margins are related to neither types of efficiency, but are affected by capitalisation, size, the opportunity cost of the reserve and liquidity, although the impact is shaped differently for Islamic and conventional banks.

The paper provides a basis for regulators and bankers for assessing the viability of the banking sector and proposes policies to restructure the industry to enhance its performance.

This paper adds value to the literature for the Yemeni banking sector and extends the previous research on the determinants of bank margins by focusing on the impact of efficiency on bank margins. Also, it compares the Islamic banks with different types of conventional banks in Yemen in their margins trend.

The purpose of this paper is to provide new empirical evidence on the impact of country governance on the revenue efficiency of Islamic and conventional banks. The empirical analysis is confined to Islamic and conventional banks operating in the Gulf Cooperation Council (GCC) countries banking sectors during the period of 2007-2011.

The analysis comprises two main stages. In the first stage, the authors employ the data envelopment analysis (DEA) method to compute the revenue efficiency of Islamic and conventional banks. The authors then used the multivariate panel regression analysis with the ordinary least square and generalized method of moments as an estimation method to investigate the potential determinants and the effect of country governance on the revenue efficiency.

The empirical findings indicate that greater voice and accountability, government effectiveness, and rule of law enhance the revenue efficiency of both Islamic and conventional banks. The authors find that regulatory quality exerts positive influence on Islamic banks, while the impact of political stability and control of corruption enhances the revenue efficiency of conventional banks.

The study on the specific revenue efficiency concept of Islamic and conventional banking is still in its formative stage. In regards, majority of the studies that examined the effect of governance on bank efficiency have focused more on the corporate or bank governance that affects the governance within the institution. Thus, to the best of the knowledge, no study has been done to address the effect of country governance on the revenue efficiency of Islamic and conventional banks specifically on the GCC countries.

Globalisation has influenced many countries, over the last few decades with financial globalisation and liberalisation bringing regulatory reforms in the banking sector. Thus, this study aims to fill a gap in the literature by examining the influence of globalisation on Islamic and conventional bank productivity in Southeast Asia.

The sample comprised 155 banks (23 Islamic and 132 conventional) from 4 countries from 2008 to 2017. Panel data techniques will be used, together with data envelopment analysis (DEA)-based Malmquist productivity index (MPI), to investigate the impact of chosen main determinants on bank productivity. A panel regression analysis will be performed after generating the productivity index from the DEA-based MPI frontier.

According to the findings, Islamic banks are statistically significantly more productive than conventional banks, and the findings of the t-test are corroborated by the findings of nonparametric tests. Furthermore, the findings of the panel regression model reveal that bank specific factors and macroeconomic variables are significant determinants to bank productivity. Surprisingly, the findings also show that the influence of social globalisation elements tends to be negatively related to conventional bank productivity.

This study adds to the existing literature by bridging the globalisation gap in the productivity of the dual banking industry, particularly in the specific context of Southeast Asia, given that the area is representative of Islamic and finance globally.

The objective of this study is to investigate the impact of selected economic variables on deposits level in the Islamic and conventional banking systems in Malaysia.

Both long‐ and short‐run relationships between these variables are measured by using advanced time series econometrics. These techniques are co‐integration and error correction framework, which are conducted within the vector autoregression framework.

By applying recent econometric techniques, we find determinants such as rates of profit of Islamic bank, rates of interest on deposits of conventional bank, base lending rate, Kuala Lumpur composite index, consumer price index, money supply and gross domestic product have different impact on deposits at both Islamic and conventional banking systems. In most cases, customers of conventional system behave in conformity with the savings behaviour theories. In contrast, most of these theories are not applicable to Islamic banking customers. Therefore, there is a possibility that religious belief plays an important role in the banking decisions of Muslim customers.

As customers are sensitive to rewards, they receive from their deposits, rates of profit of Islamic system must at any time be similar to those of the conventional system. Finally, religious dimension can be considered as an important element to attract more people to deposit their funds in the Islamic system.

To the best of the authors’ knowledge, this is the first attempt to empirically examine the depositor's behaviour in the Islamic banking environment.

The paper aims to examine whether the daily conventional money market overnight rate influences the monthly investment rate of Islamic deposits in Malaysia. The traditional approach, which averages the high-frequency data to match the low-frequency data, results in information loss for the high-frequency data.

The paper uses the mixed data sampling (MIDAS) model to study the relationship between Islamic banking and conventional banking. The Malaysian data are used for the analysis as Malaysia has one of the most developed Islamic financial industries in the world, and it is well-known for its dual banking system.

The evidence shows that the conventional overnight rate has a positive effect on the Islamic deposit rate. The results are consistent for Islamic deposit rates with different maturities. The positive aggregate effect holds when the lag length of the daily conventional overnight rate goes up to 90 days. Additional evidence shows that the daily conventional overnight rate has a similar effect on the conventional deposit rate.

This paper documents that the relationship between Islamic banking and conventional banking is not monotonous. When high-frequency data is averaged with low-frequency data, the non-linear relationship will be masked. It highlights the importance of using high-frequency data to get a detailed picture.

This study aims to investigate the differences in the credit profiles of Islamic and conventional banks in the Gulf Cooperation Council (GCC) region and attempts to identify the factors responsible for those differences.

Financial data sourced from the Bankscope database for a sample of 25 Islamic and 56 conventional banks headquartered in the GCC region between 1987 and 2014 are used. The credit risk of Islamic versus conventional banks is compared using a variety of univariate (mean difference test and correlation analysis) and multivariate tests (pooled ordinary least squares (OLS) regressions with robust standard errors and year fixed effects, regressions with interaction variables and logistic regressions).

Pooled OLS regressions find that Islamic banks have lower credit risk than conventional banks. Robustness checks using logistic functions and interaction variables confirm this result. Using multiple econometric specifications, we also find that higher capitalization, greater liquidity and cost inefficiency contribute to the lower risk profile of Islamic banks.

The study is unable to disaggregate data for banks offering both Islamic and conventional banking services and hence does not include conventional banks with Islamic windows. In addition, there are differences across countries even within the GCC region as to what is considered Sharia’h-compliant and what is not.

The results are of potential interest to not only researchers, but also market participants, regulators and legislators. The methods used in this study could be extended to other two-tiered banking systems and, in the case of Islamic and conventional banking, to other markets.

The authors use a unique sample of banks headquartered in the GCC countries, whose banking markets are similar, if not homogeneous, thus excluding operations of multinational banks. By focusing on the Gulf region, differences in the credit profiles of Islamic and conventional banks can be examined without the confounding effects of unobserved factors like culture, accounting regime or regulatory environment.

This study aims to analyse three main questions within the Malaysian banking system: Are Islamic banks more competitive than conventional banks? What are the levels of competition for Islamic and conventional banking sectors pre, during and post the 2007-2009 global financial crisis? Does penetration of Islamic banks affect the competitive structure of conventional banks?

In measuring a bank competition, the author estimates the Panzar–Rosse H-statistic (PRH) method on 17 Islamic and 21 conventional banks in Malaysia over the period of 2004-2013. This is then followed by ordinary least squares (OLS) robust regression analysis to control Islamic banks’ penetration, bank-specific and macroeconomic factors.

Results from the PRH method (total revenue) suggest that Malaysian Islamic banks are relatively more competitive than their conventional counterparts. Furthermore, the author observes that the level of competition for both Malaysian Islamic and conventional banks increased tremendously during the 2007-2009 global financial crisis. This suggests the impact of the crisis on the level of competition for both banking systems. Finally, the OLS robust regression suggests that Islamic banks’ penetration has a significantly positive impact on the level of competition for conventional banks. The PRH estimation using total interest income indicates similar results, suggesting the robustness of these results.

This study reveals whether Islamic banks’ penetration is able to increase the level of competition within the conventional banking sector. Knowledge on this is important to the policymaker.

To the best of the author’s knowledge, this is the first study using the PRH method in comparing the level of competition for Malaysian Islamic and conventional banks. Furthermore, this is the first study analysing the impact of Malaysian Islamic banks’ penetration on the level of competition for conventional banks.

This paper aims to provide a comparative study of the Islamic versus conventional banking sector risk by using market data generated from the sample of publicly listed Islamic and conventional banks in the Gulf Cooperation Council (GCC) region.

The authors introduce a market-based measure of bank stress and test this indicator against the Tier 1 Capital Ratio using Granger causality tests.

The authors find that the market-based measure is a leading indicator of banking stress when compared to the accounting-based Tier 1 ratio and thus is relevant to the Basel regulation’s Pillar 3.

This paper only looks at Islamic vs conventional banks in the Gulf region, and the authors would like to extend this analysis to a broader range of financial institutions, especially in the European and North American markets.

Developing a measure that signals bank stress ahead of typically used measures can help regulators, bank management and investors identify oncoming problems and issues before these become too big to manage.

The results from this analysis provides insight into the offsetting impact from two drivers (beta and book-to-market ratio) of the cost of equity capital for the conventional vs Islamic banking sectors.

This chapter investigates the presence of a difference in the systemic risk level between Islamic and conventional banks in Bangladesh. The authors compare systemic resilience of three types of banks: fully fledged Islamic banks, purely conventional banks (CB), and CB with Islamic windows. The authors use the market-based systemic risk measures of marginal expected shortfall and systemic risk to identify which type is more vulnerable to a systemic event. The authors also use ΔCoVaR to identify which type contributes more to a systemic event. Using a sample of observations on 27 publicly traded banks operating over the 2005–2014 period, the authors find that CB is the least resilient sector to a systemic event, and is the one that has the highest contribution to systemic risk during crisis times.