Efficiency in Islamic vs. conventional banking: The role of capital and liquidity

We show that higher capital and liquidity ratios increase the efficiency of conventional and Islamic banks. Using conditional quantile regressions, we further show that the effect is stronger for highly efficient, small, highly liquid, and highly capitalized conventional banks. We also find that more capitalized and liquid banks were efficient during the 2008/2009 financial crisis and the Arab Spring. Our findings support the view that the constraints imposed by Shari'a law may widen the efficiency gap between the two bank types, at the expense of Islamic banks. Furthermore, our findings suggest that the efficiency of conventional banks not only depends on bank capital and liquidity, but also on the level of bank efficiency while the relationship is inconclusive for Islamic banks. These findings provide insight into how capital and liquidity can shape bank efficiency. They suggest that higher capital and liquidity buffers serve a constraint on policymakers and may function very differently depending on the level of bank efficiency.     

Sukuk market development and Islamic banks’ capital ratios

This paper investigates the impact of Sukuk market development on Islamic banks’ capital ratios using a sample comprising 230 Islamic banks spanning the period 2005–2014. We characterize Islamic bank capital along multiple dimensions, namely: capital adequacy ratio, Tier 1 capital ratio, and capital-to-total assets ratio. We employ both the Prais-Winston technique and the system GMM estimator to tackle potential omitted variable bias, endogeneity, and simultaneity issues. The evidence shows that Sukuk market development has had a negative effect on capital ratios of Islamic banks. We argue that the development of Sukuk markets may have stimulated the competition between Islamic Banks, inducing them to hold lower capital ratios. Our results also show that trade openness and bank liquidity are positively and significantly related to capital ratios, while bank size and loan loss reserve ratio are negatively and significantly related to capital ratios, as expected.     

Does lending relationship help or alleviate the transmission of liquidity shocks? Evidence from a liquidity crunch in China

We examine China’s June 2013 liquidity crunch as a negative shock to banks and analyze the wealth effects on exchange-listed firms. Our findings suggest that liquidity shocks to financial institutions negatively impact borrower performance, particularly borrowers reporting outstanding loans at the end of 2012. Stock valuations of firms with long-term bank relationships, however, outperform the market and experience smaller subsequent declines in investment than peers lacking solid banking relationships. This effect is the strongest for firms that enjoy good relations with China’s large state-owned banks or foreign banks, and weakest for firms whose connections are solely with local banks. We document a positive correlation between the stock performances of firms and the stock performances of lender banks and the likelihood of lender banks operating as net lenders in the interbank market. These results suggest that banks transmit liquidity shocks to their borrowing firms and that a long-term bank-firm relationship may mitigate the negative effects of a liquidity shock.     

A Survival Analysis of Islamic and Conventional Banks

Are Islamic banks inherently more stable than conventional banks? We address this question by applying a survival analysis based on the Cox proportional hazard model to a comprehensive sample of 421 banks in 20 Middle and Far Eastern countries from 1995 to 2010. By comparing the failure risk for both bank types, we find that Islamic banks have a significantly lower risk of failure than that of their conventional peers. This lower risk is based both unconditionally and conditionally on bank-specific (microeconomic) variables as well as macroeconomic and market structure variables. Our findings indicate that the design and implementation of early warning systems for bank failure should recognize the distinct risk profiles of the two bank types.     

Shari’ah supervision,corporate governance and performance: Conventional vs. Islamic banks

The performance and accountability of boards of directors and effectiveness of governance mechanisms continue to be a matter of concern. Focusing on differences between conventional banks and Islamic banks, we examine the effect of (i) Shari’ah supervision boards, (ii) board structure and (iii) CEO-power on performance during the period 2005–2011. We find Shari’ah supervision boards positively impact on Islamic banks’ performance when they perform a supervisory role, but the impact is negligible when they have only an advisory role. The effect of board structure (board size and board independence) and CEO power (CEO-chair duality and internally recruited CEO) on the performance of Islamic banks is overall negative. Our findings provide support for the positive contribution of Shari’ah supervision boards but also emphasize the need for enforcement and regulatory mechanism for them to be more effective.     

Bank image in the UAE: Comparing Islamic and conventional banks

This study investigates how bank customers in the UAE view Islamic banks versus conventional banks and whether this image affects customer loyalties or selection of a bank. We distributed a questionnaire to a convenient sample of UAE bank customers that focused on five areas: bank image, bank products, service quality, cultural aspects and religious factors, in addition to demographic attributes of the sample. The main findings of this study are: first, most UAE bank customers prefer banking with Islamic banks, although they are not satisfied with the quality of products and services; second, customers generally have a positive image of whatever bank they dealt with; third, the regression analysis results indicate that the most important factor in choosing a bank was bank products followed by service quality and then religious factors; fourth, there is a significant difference between how customers perceive UAE Islamic banks versus conventional banks; fifth, there is a significant difference in how customers perceive UAE Islamic banks based on their gender, education and duration of the relationship; and finally, there is a significant difference in how customers perceive UAE conventional banks based on their gender.     

Religion in the boardroom and its impact on Islamic banks' performance

The impact of board diversity, in terms of gender, race, ethnicity etc., on performance and stability of firms has been researched extensively. However, the impact of religious diversity and its impact on performance and stability has been completely ignored. This issue is quite relevant, especially for the Islamic banks because of their primary objective i.e. to be in compliant with Islamic principles in all their dealings. Taking a cue from this argument, we believe if the majority board members are Muslim it can have a positive impact on the performance as they would better understand the importance of the substance of the shari'ah compliant dealings and that can translate into good performance and make it more stable. Based on our arguments, we examined the impact of religious diversity on the performance and stability on Malaysian banks Islamic and Conventional both for the period of 9 years, through 2005 to 2013. Our results from GMM estimation reveal that the religious orientation has no impact on the performance and this result is robust to various proxies. Our results imply that a non-Muslim member of the board of directors is able to run the Islamic banking business as good as a Muslim board member.     

Payout policy and ownership structure: The case of Islamic and conventional banks

Using a sample of Islamic and conventional financial institutions domiciled in 16 countries for the period 2000–2015, we examine how ownership structure affects dividend policy. Our main findings indicate that ownership identity is important in explaining dividend policy in these banks, albeit in different patterns. In particular, the results suggest that government ownership seems to exert negative effects on dividend payouts in both types of banks, which is in line with the preference of governments towards bank stability. With respect to family ownership, the impact is negative for conventional banks but positive for Islamic ones, consistent with agency theory. These results are to some extent similar in the case of foreign ownership where it is associated with a higher payout policy in Islamic banks, but not significant in conventional ones. Our results are robust to an array of additional analyses including propensity score matching.     

Banking efficiency in Gulf Cooperation Council (GCC) countries: A comparative study

We measure cost and profit efficiencies of banks operating in six GCC countries (Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates) using heteroskedastic stochastic frontier (HSF) models. Our results show that measures of cost and profit efficiencies of banks vary widely across the six gulf countries over the same period. We examine whether cost and profit efficiencies of Islamic banks are significantly different from that of conventional banks. After allowing for bank risk, asset quality, environmental influences such as the level of interest rate, and country effect, we find that cost and profit efficiencies of Islamic banks are similar to that of conventional banks. Our results suggest that the country-specific variables have significant impact on cost and profit efficiencies of banks operating in GCC countries. Our findings indicate that cost and profit efficiencies of Islamic banks are more volatile than that of conventional banks.     

The regulations–risk taking nexus under competitive pressure: What about the Islamic banking system?

Does market power condition the effect of bank regulations and supervision on bank risk taking? We focus on three regulatory tools: capital requirements, the restriction of activities, and official supervisory powers. Employing 10 years of unbalanced panel data on 123 Islamic and conventional banks operating in the Middle East and Asia, we arrive at the following conclusions. First, banking market power strengthens the negative impact of capital regulation on bank risk taking. Second, our empirical results suggest that the negative effect of activity restrictions on stability is diminished when banks have greater market power. Finally, we do not find strong evidence that the negative effect of supervisory power on banks’ risk taking is conditioned by their competitive behavior. In further analysis, we differentiate between Islamic and conventional banks regarding their competition, as well as their risk behavior. The results differ according to the banking business model. These findings could be useful for bank regulators in light of the accomplishment of Islamic banks’ regulatory framework. Indeed, the adoption of Basel III represents a significant regulatory challenge, given that it does not take into account the specificities of Islamic banks.     

Did Good Corporate Governance Improve Bank Performance during the Financial Crisis?

This paper focuses on the effects of corporate governance on bank performance during the financial crisis of 2008. Using data on large publicly traded U.S. banks, we examine whether banks with stronger corporate governance mechanisms were associated with higher profitability and better stock market performance amidst the crisis. Our empirical findings on the effects of corporate governance on bank performance are mixed. Although the results suggest that banks with stronger corporate governance mechanisms were associated with higher profitability in 2008, our findings also indicate that strong governance may have had negative effects on stock market valuations of banks amidst the crisis. Nevertheless, we document that banks with strong corporate governance practices had substantially higher stock returns in the aftermath of the market meltdown, indicating that good governance may have mitigated the adverse influence of the crisis on bank credibility.     

Perceived justice and customer loyalty in the retail banking sector in the UAE

In this study, the impacts of the three dimensions of justice (distributive, interactional, and procedural) on customers’ post-complaint behaviour (ie exit vs loyalty) of both conventional and Islamic banks in the UAE were investigated. The results showed that interactional justice (eg courtesy) and distributive justice (eg refund) play predominant roles, since they impact both positive and negative emotions and the exit-loyalty behaviour of customers regardless of the type of bank (conventional or Islamic). The results show, however, that procedural justice (eg timeliness) has no impact on either negative or positive emotions and the exit-loyalty behaviour of either conventional bank customers or Islamic bank customers. The results were interpreted in terms of cultural context and in terms of managerial implications for conventional and Islamic banks that are mostly dealing with complaint handling and employee training. The limitations of this study are also discussed at the end.     

Dividend payout strategies and bank survival likelihood: A cross-country analysis

In this cross-country study, we examine whether dividend payout decisions affect the survival likelihood of banks. Using unique international banking data from 11 countries from 2010 to 2019, we find that higher levels of cash dividend payouts increase a bank's survival likelihood, as paying dividends lowers agency problems and cost of debt and facilitates greater public monitoring. Our extended analysis shows an inverted U-shaped relation between large dividends and survival likelihood. At higher levels, payout is related to a safer position of banks in terms of default; however, at very high levels of dividends, when the levels of payouts exceed a threshold, such payout lowers the likelihood of survival. We additionally investigate the effect of the bank type to assess whether differential effects could be realised under the constrained dividend model of Islamic banks compared to the conventional banking model. Our results, interestingly, show that the positive effect of dividend payouts on bank survival is more pronounced in conventional than Islamic banks. This finding is explained by the dominant liquidity management challenges pertaining to the Islamic banking business model in which banks retain more cash and pay lower dividends. Our findings offer important insights and policy implications for regulators, bankers and a broad set of stakeholders engaging with both banking sectors.     

Heterogeneity in independent non-executive directors' attributes and risk-taking in large banks

The extant literature suggests that complex firms can benefit from independent non-executive director (INED) quality. To address the issue of INED quality, we look at heterogeneity in the independent non-executive directors' (INEDs') attributes and explore whether this is related to risk-taking behaviour in large banks. We gather novel, hand-collected, director-level data for approximately 2400 independent non-executive directors (INEDs) of 185 global large banks from 35 countries for the period of 2004–2016, concluding that heterogeneity in INEDs' gender, financial expertise, and board tenure all influence risk-taking behaviour. Employing several identification strategies, we show that the cause seems to be heterogeneity in the INEDs' attributes, as channelled through information asymmetry. We also find that heterogeneity in the INEDs' attributes significantly mitigates bank risk-taking in the post-2009 period. Our study contributes to the literature on both the benefits of INEDs and director heterogeneity.     

Stakeholder orientation and managerial incentives: Evidence from a natural experiment

This paper examines the influence of stakeholder orientation on the design of managerial incentives. Our tests exploit the quasi-natural experiment provided by the staggered adoption of directors' duties laws (i.e., state-level laws that explicitly expand board members' duties to act in the best interests of all stakeholders). We find that the enactment of these laws results in a significant decrease in the sensitivity of CEO wealth to the stock price. This decrease is mostly driven by firms most exposed to pressures to maximize short-term stock price. Our results suggest that the decrease in the sensitivity of CEO compensation to the stock price is an important channel boards use to internalize stakeholder orientation.     

Directors' and officers' liability insurance and stock price crash risk

We investigate the impact of directors' and officers' insurance (D&O insurance) on stock price crash risk. We find that D&O insurance in China is negatively associated with stock price crash risk. This association is robust to a series of robustness checks including the use of alternative sample, Heckman two-step sample selection model, propensity score matching procedure, fixed effects model, the inclusion of some possibly omitted variables, and bootstrap method. Further analyses show that the impact of D&O insurance on crash risk is more pronounced in firms with lower board independence, non-Big 4 auditors, lower institutional shareholdings, and weaker investor protection; and the negative relationship between D&O insurance and crash risk is not driven by the eyeball effect. Moreover, we find that D&O insurance purchase is associated with less financial restatements and more disclosure of corporate social responsibility reports. Our findings provide support to the notion that D&O insurance appears to improve corporate governance.     

Bank-level stability factors and consumer confidence – A comparative study of Islamic and conventional banks’ product mix

This study examines the behaviour of key bank-level stability factors of liquidity, capital, risk-taking and consumer confidence in Islamic and conventional banks that operate in the same market. Using fixed effect for a sample of 194 banks of Gulf Cooperation Countries between 2000 and 2007, we found that liquidity is not determined by the bank's product mix but rather attributed to systematic factors. However, non-performing assets (representing loans to sub-prime borrowers) have a positive and significant relationship with liquidity, implying that during the crisis Islamic banks tend to take stringent risk strategies compared to conventional banks. Furthermore, Islamic banks generally tend to provide higher consumer confidence levels as they were more capitalized than conventional banks, although conventional banks had carried higher averages of liquidity compared to Islamic banks. Consumer confidence levels or depositors’ discipline as proxied by deposits and customer funding over liabilities generally appear to be higher in Islamic banks than conventional banks.     

Corporate governance and recent consolidation in the banking industry

Using the universe of publicly traded banks at year-end 1993, we find that target banks' outside directors, but not inside directors, tend to own more stock than their counterparts in other banks. Having an outside blockholder is also associated with banks becoming targets. In contrast to existing research on industrial firms, board structure does not help determine which sample banks sell. Neither the fraction of outsiders on a bank's board nor having an outside-dominated board differentiate the target banks in our sample. Instead, outside directors/shareholders and blockholders appear to be primarily responsible for encouraging bank managers to accept an attractive merger offer     

Geopolitical,economic uncertainty and bank risk: Do CEO power and board strength matter?

This study examines whether economic and geopolitical uncertainties affect bank risk. Using a sample of 574 banks from 19 countries for 2009–2020, our findings show that increasing economic and geopolitical uncertainty significantly constrain the bank risk and worsens its stability. Furthermore, we explore whether CEO power and board strength have played a moderate role in mitigating the adverse impact of economic and geopolitical uncertainty on bank risk. The finding shows that CEOs' power and strong boards improve the bank's performance and minimize the adverse effects of economic and geopolitical uncertainty on bank risk. The results are robust to alternative bank risk, economic uncertainty, and geopolitical uncertainty measures and address endogeneity. Additional analyses on bank heterogeneity show that the bank stability of listed, domestic and private-owned banks is more immune to such uncertainty.     

Stock liquidity and director compensation

This study investigates how stock liquidity affects the compensation incentives faced by the directors on the board. The results show that the proportion of cash-based compensation in the directors' compensation package increases when the firm's shares are less liquid: a one standard deviation increase in the bid-ask spread from the mean is associated with a 3% larger fraction of cash in the directors' compensation package. The effect is more pronounced for firms whose management does not issue Earnings Per Share (EPS) guidance and for firms whose Chief Executive Officers (CEOs) themselves have higher pay in cash and lower pay in the form of equity. These results suggest the compensation incentives offered to directors in firms with illiquid shares result in the interests of shareholders being less aligned with those of the directors compared with firms with liquid shares.