Cost and profit efficiency of conventional and Islamic banks in GCC countries

Using stochastic frontier approach, this paper investigates the cost and profit efficiency levels of 71 commercial banks in Gulf cooperation council countries over the period 1999–2007. This study also conducts a comparative analysis of the efficiency across countries and between conventional and Islamic banks. Moreover, we examine the bank-specific variables that may explain the sources of inefficiency. The empirical results indicate that banks in the Gulf region are relatively more efficient at generating profits than at controlling costs. We also find that in terms of both cost and profit efficiency levels, the conventional banks on average are more efficient than Islamic banks. Furthermore, we observe a positive correlation of cost and profit efficiency with bank capitalization and profitability, and a negative one with operation cost. Higher loan activity increases the profit efficiency of banks, but it has a negative impact on cost efficiency.     

ISLAMIC BANKING AND FINANCE: RECENT EMPIRICAL LITERATURE AND DIRECTIONS FOR FUTURE RESEARCH

This paper examines the recent empirical literature in Islamic banking and finance, highlights the main findings and provides a guide for future research. Early studies focus on the efficiency, production technology and general performance features of Islamic versus conventional banks, whereas more recent work looks at profit‐sharing and loss‐bearing behaviour, competition, risks as well as other dimensions such as small business lending and financial inclusion. Apart from key exceptions, the empirical literature suggests no major differences between Islamic and conventional banks in terms of their efficiency, competition and risk features (although small Islamic banks are found to be less risky than their conventional counterparts). There is some evidence that Islamic finance aids inclusion and financial sector development. Results from the empirical finance literature, dominated by studies that focus on the risk/return features of mutual funds, finds that Islamic funds perform as well, if not better, than conventional funds – there is little evidence that they perform worse than standard industry benchmarks.     

What makes Islamic banks different? A multivariate approach

Using data from 8615 banks (including 123 Islamic banks) in 124 developed and developing countries for the period between 2006 and 2012, we examine the financial characteristics that distinguish between conventional and Islamic banks. As banks’ financial characteristics are multi-faceted concepts, our indicators are constructed using principal component analysis. We find that Islamic banks are more capitalized, more liquid and more profitable, but have more volatile earnings compared to US and European banks. However, similarities in terms of liquidity and earnings volatility are more noticeable when the sample is limited to banks operating in countries where both systems coexist. Finally, we find that higher capital makes the returns of Islamic banks more volatile, while higher liquidity decreases the profitability of conventional banks.     

Financial stability of Islamic banking and the global financial crisis: Evidence from the Gulf Cooperation Council

Using a sample of 76 banks from the Gulf Cooperation Council region, we use accounting- as well as market-based measures of financial stability to examine whether Islamic banks outperformed conventional banks in the time of financial shocks during the period 2000–2013. We find that the difference between the two banking types was initially not significant during the GFC. However, when the financial shock spread to the real economy during the later phases of the crisis, Islamic banks suffered a significantly higher level of financial instability than conventional banks. This result holds true for large banks but not for small Islamic banks. Small Islamic banks demonstrated a relatively better handling of the economic downturn than large Islamic banks, supporting the argument that Islamic banks are more stable when they operate at a small scale but lose this stability when they increase their scale of operations. Hence, while Islamic banks may have escaped the consequences of highly volatile financial instruments, they were not spared from a major shock in the real economic sectors.     

Do Islamic Banks Employ Less Earnings Management?

In this article, we examine whether Islamic banks are less likely to manage their earnings than non‐Islamic banks and how Islamic banks’ unique corporate governance system, especially Shari'ah Supervisory Boards, impacts earnings management behaviors within Islamic banks. Using a sample of Islamic banks and their matched non‐Islamic banks in 15 countries, we find that, first, Islamic banks are less likely to conduct earnings management as measured by both earnings loss avoidance and abnormal loan loss provisions. Second, there are no significantly different earnings management behaviors between Islamic banks with and without Shari'ah Supervisory Boards. Third, several Shari'ah Supervisory Board characteristics, such as size and the presence of members from Auditing Organization for Islamic Financial Institutions, are important determinants of the earnings management of Islamic banks who have Shari'ah Supervisory Boards.     

Do foreign bank operations provide a stabilizing influence in Korea?

We examine data (1994–2001) to determine if foreign banks’ behavior differed from domestic banks and if foreign banks helped to stabilize Korean markets. Foreign banks’ financial ratios differed from Korean banks with two notable exceptions: provisions for loan losses and loan growth. Before the Asian financial crisis, all banks’ loans generally did not respond to Korean market conditions. Post crisis, foreign banks reduced total lending. Foreign banks increased and Korean banks decreased won-denominated loans when Korean economic conditions improved after the crisis. Finally, foreign banks’ lending reacted to changes in home-country GDP growth and real interest rates.     

Cyclicality of bank credit growth: Conventional vs Islamic banks in the GCC

Using a panel of 104 banks from the six Gulf Council Countries, we investigate the cyclicality of credit growth with regard to the discrepancies between Islamic banks and conventional banks. We found that Islamic banks are pro-cyclical and have higher credit growth compared to conventional banks. Indeed, the Profit and Loss Sharing (PLS) mechanism helps Islamic banks not to curb their credit growth during adverse economic conditions. We tested the role of the growth rate of market sentiment and found that positive market sentiment leads to higher bank credit growth. Furthermore, we investigate the impact of several bank-specific variables on bank credit growth and discuss to what extent diversification and the investment portfolio reshape the credit growth process.     

Why Do African Banks Lend So Little?

We put forward a plausible explanation of African banking sector under‐development in the form of a bad credit market equilibrium. Using an appropriately modified Industrial Organization model of banking, we show that the root of the problem could be unchecked moral hazard (strategic loan defaults) or adverse selection (a lack of good projects). Applying a dynamic panel estimator to a large sample of African banks, we show that loan defaults are a major factor inhibiting bank lending when institutional quality is low. We also find that once a threshold level of institutional quality has been reached, improvements in the default rate or institutional quality do not matter. This provides support for our theoretical predictions.     

The impact of prudential toolkits on loan growth in Central and Eastern European banking systems

This paper examines the effects of prudential policy on loan growth in 11 Central and Eastern European banking systems, spanning the period from 2000 to 2015. Based on the measures taken by the authorities of our sample countries, we build several prudential indices. Additionally, we control for the effects of several country-specific factors and bank-specific characteristics. Finally, we test the homogeneity of these effects, accounting for cycle, ownership, and bank effects. Generally, the empirical findings reveal a negative correlation between prudential toolkits and credit growth, with a conspicuous impact for tools targeting lending activity. We see that the effects of a change in the lending framework on loan growth are heterogeneous when we account for crisis and cycle patterns. Furthermore, the interaction between ownership and crisis reveals that, in normal times, foreign banks recorded higher loan growth compared to domestic banks. The opposite is true in turbulent times. The analysis of interactions between credit-based measures and bank-specific variables show that the effects of prudential actions depend on the bank size and leverage.     

Efficiency in Islamic and conventional banking: an international comparison

The paper investigates the efficiency of a sample of Islamic and conventional banks in 10 countries that operate Islamic banking for the period 1996–2002, using an output distance function approach. We obtain measures of efficiency after allowing for environmental influences such as country macroeconomic conditions, accessibility of banking services and bank type. While these factors are assumed to directly influence the shape of the technology, we assume that country dummies and bank size directly influence technical inefficiency. The parameter estimates highlight that during the sample period, Islamic banking appears to be associated with higher input usage. Furthermore, by allowing for bank size and international differences in the underlying inefficiency distributions, we are also able to demonstrate statistically significant differences in inefficiency related to these factors even after controlling for specific environmental characteristics and Islamic banking. Thus, for example, our results suggest that Sudan and Yemen have relatively higher inefficiency while Bahrain and Bangladesh have lower estimated inefficiency. Except for Sudan, where banks exhibits relatively strong returns to scale, most sample banks exhibit very slight returns to scale, although Islamic banks are found to have moderately higher returns to scale than conventional banks. While this suggests that Islamic banks may benefit from increased scale, we would emphasize that our results suggest that identifying and overcoming the factors that cause Islamic banks to have relatively low potential outputs for given input usage levels will be the key challenge for Islamic banking in the coming decades.     

The impact of government intervention on the stabilization of domestic financial markets and on U.S. banks’ asset composition

The 2007–2009 financial crisis that evolved from various factors including the housing boom, aggressive lending activity, financial innovation, and increased access to money and capital markets prompted unprecedented U.S. government intervention in the financial sector. We examine changes in banks’ balance sheet composition associated with U.S. government intervention during the crisis. We find that the initial round of quantitative easing positively impacts bank liquidity across all bank samples. Our results show a positive impact of repurchase agreement market rates on bank liquidity for small and medium banks. We conclude that banks have become more liquid in the post-crisis period, especially the larger banks (large and money center banks). We show that real estate loan portfolio exposures have reverted to pre-crisis levels for money center banks and remained flat for all other bank samples.     

Branch network structure,authority and lending behaviour

Using a novel dataset of Ukrainian banks, this paper examines the link between the structure of branch network and bank lending. Bank regional branches are categorised into contact points without loan decision-making authority and more independent delegated branches which can make loan decisions. We find that a large and dispersed network of contact points can help increase credit supply and mitigate risks through diversification. Further, banks benefit from the information advantage brought by the presence of delegated branches in local markets. However, the longer distance between headquarters and local delegated branches, the more amplified agency problems become, which outweighs the benefits. Our findings suggest that the optimal structure could be a centralised network of delegated branches combined with a diversified access point network.     

Financial innovation and bank behavior: Evidence from credit markets

This paper investigates whether, and through which channel, the active use of credit derivatives changes bank behavior in the credit market, and how this channel was affected by the crisis of 2007–2009. Our principal finding is that banks with larger gross positions in credit derivatives charge significantly lower corporate loan spreads, while banks׳ net positions are not consistently related to loan pricing. We argue that this is consistent with banks passing on risk management benefits to corporate borrowers but not with alternative channels through which credit derivative use may affect loan pricing. We also find that the magnitude of the risk management effect remained unchanged during the crisis period of 2007–2009. In addition, banks with larger gross positions in credit derivatives cut their lending by less than other banks during the crisis and have consistently lower loan charge-offs. In sum, our study is suggestive of significant risk management benefits from financial innovations that persist under adverse conditions – that is, when they matter most.     

Is the secondary loan market valuable to borrowers?

In recent years, the secondary loan market has developed into an over-the-counter market where loans are not only sold but also subsequently traded. This shift away from traditional banking is altering the business of lending. Loan sales are valuable to banks because they free up capital, generate fee-based income and facilitate risk management; but they may be costly to borrowers because they negatively affect bank monitoring incentives. In this paper, however, we argue that there is another potential benefit to borrowers from loan sales. Borrowers with trading loans, in particular those with liquid loans, may “demand” a share of bank benefits from loan sales when they take out new loans as it will be easier for banks to sell these loans afterwards. We investigate this potential benefit of the secondary loan market by comparing the interest rates borrowers pay before their loans start to trade with the interest rates they pay on loans originated post-trading. Our results show that, on average, borrowers pay higher spreads on the loans they take out after the onset of trading on their loans. Importantly, our results also show that borrowers with liquid trading loans are able to borrow at lower interest rates after the onset of trading on their loans. Thus, while the banks’ decision to sell loans may initially impose a cost on borrowers, those whose loans enter the secondary loan market and become liquid benefit from an interest rate discount on their subsequent loans.     

新常态下我国商业银行贷款利率定价机制探讨

我国经济进入新一轮非均衡运行的新常态,商业银行发展模式将逐步向“讲质量”转变。2013年7月央行贷款利率管制放开后,商业银行迎来信贷资产自主定价的新时代,如何适应新常态下银行贷款利率定价机制,是商业银行转型发展永恒的主题。本文简要介绍了商业银行贷款定价机制的现状,揭示了商业银行贷款定价机制存在的问题,提出了新常态下优化贷款定价的建议。     

The role of banks in the monetary policy transmission in the new EU member states

This paper aims to enrich the knowledge on the monetary policy transmission mechanism in the new European Union member states with empirical evidence on the impact of monetary policy on bank lending. This work is based on individual bank balance sheet data and covers a sample of commercial banks from 10 Central and Eastern European countries over the period 1998–2006. We follow the approach suggested by Kashyap and Stein (1995) and control for cross-section heterogeneities among banks. The results indicate the existence of asymmetric adjustment of loan quantities with respect to specific bank characteristics. Our findings indicate the existence of a functioning bank-lending channel through small banks. This applies in the short-run to several, but not all, of the analysed banks.     

基于产业异质性的银行贷款政策效应分析——来自上市银行的经验证据

在银行信贷资金配置存在产业间差异的假定下,建立引入产业因素的银行贷款决定模型,考察产业因素影响银行贷款渠道有效性的内在机制,并运用2007年到2010年14家上市银行和5组产业数据展开动态面板模型估计,结果表明:从贷款需求角度看,各个产业的产出对产业贷款的影响效应存在产业间差异;从贷款供给角度看,人民银行运用货币政策工具调控产业贷款的影响效应也存在产业间差异。也就是说,产业因素确实影响到人民银行调控各个特定产业贷款的力度。     

How do changes in monetary policy affect bank lending? An analysis of Austrian bank data

Using a panel of Austrian bank data we show that the lending decisions of the smallest banks are more sensitive to interest rate changes, and that for all banks, sensitivity changes over time. We propose to estimate the groups of banks that display similar lending reactions by means of a group indicator which, after estimation, indicates each bank's classification. Additionally, we estimate a state indicator that indicates the periods during which the lending reaction differs from what we normally observe. Bayesian methods are used for estimation; a sensitivity analysis and a forecast evaluation confirm our model choice. Copyright © 2006 John Wiley & Sons, Ltd.     

Risky bank lending and countercyclical capital buffers

We study the properties of a monetary economy with an essential role for risky bank lending. Banks issue deposits and lend to entrepreneurs. Because banks׳ lending rate cannot be made contingent on aggregate shocks, and because banks face capital adequacy regulations, they require a capital buffer against loan losses. Capital adequacy regulations are modeled on the Basel-III rules, including a minimum capital adequacy ratio, an endogenous capital conservation buffer, and a countercyclical capital buffer. We find that a countercyclical capital buffer leads to a significant increase in welfare. It also reduces the need for countercyclical adjustments in policy interest rates.     

The bank lending channel of monetary transmission in Brazil: A VECM approach

This paper tests for the existence of a lending channel in the transmission of monetary policy in Brazil using aggregate monthly data for the period 1995:12 through 2008:6. The test is carried out in a VECM setting that allows for multiple cointegrating relationships among the variable of interest. We find evidence of two cointegrating vectors, which we identify as loan demand and supply functions by testing for a number of exclusion and exogeneity restrictions on the cointegrating relationships. Loan supply is found to be negatively related to the interbank deposit certificate rate, suggesting the existence of a lending channel for monetary transmission. The VECM's short-term dynamics show that loan demand is equilibrium-correcting. But short-term disequilibria in the supply of loans are corrected through changes in the interbank deposit certificate rate, suggesting that monetary policy plays a role in restoring equilibrium in the credit market by affecting the borrowing rate faced by banks to raise non-deposit funds.