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This study aims to address how Islamic banks (IBs) and conventional banks (CBs) manage their liquidity and their speed of adjusting liquidity holdings both in the short- and long term.

This study uses the partial adjustment model (PAM) on a sample of 445 banks from 17 Organisation of Islamic Cooperation countries over the period 2010–2018.

Results reveal that despite IBs’ placement of higher short-term liquidity buffer, they experience lower net stable fund ratio (NSFR) in the long term, relative to CBs. This study’s results also reveal that IBs enjoy higher and lower speed of adjustment (SOA) for NSFR in the long- and short term, respectively. Furthermore, the results suggest that bank-specific and macroeconomic factors weaken the liquidity SOA.

This study sheds light on the importance of the adjusting speed of bank liquidity in a bid to provide regulators with insights for enhancing liquidity holdings and emphasising the regulation of banks’ reaction pace to attain the target buffers.

This study estimates the liquidity adjustment speed of IBs and CBs by providing a comprehensive discussion and empirical evidence across countries. To the best of the authors’ knowledge, this study is the first to use PAM for the assessment of liquidity holdings in IBs and the first to examine SOA of short-term liquidity holdings in the banking sector.

This study aims to examine the impact of activity restrictions in shaping the risk-taking behaviour of banks through the channel of competition in different economic conditions.

The authors use a dynamic panel regression method, particularly a two-step system generalised method of moments to address the risk-taking persistence of banks and endogeneity of activity restrictions and competition with banks’ risk-taking using financial freedom and property rights as instrumental variables. Activity restrictions are computed by constructing an index based on the survey results of Barth et al. (2001, 2006, 2008 and 2013a). Competition is measured by the Panzar–Rosse H-statistic and risk-taking behaviour are measured by non-performing loan ratio and lnZ-score. In the investigation process, the authors control bank characteristics – size, efficiency, ownership and loan composition and macroeconomic factors – gross domestic product growth and inflation, and use 2,527 bank-year observations from 180 commercial banks of Association of the Southeast Asian Nations-five countries over the 1990–2014 period.

This study finds that activity restrictions exacerbate the risk-taking behaviour of the banks leading to changes in the channel of competition because of the “risk-shifting effect” of competition. The finding is robust by considering the financial crisis and alternative specifications.

This study contributes to bank literature and policy formulation regarding the effect of activity restrictions on the risk-taking behaviour of banks, which is an issue of concern amongst bank regulators, policymakers and academics, especially in the aftermath of the 2008–2009 global financial crisis.

Understanding how the competition plays a role in the relationship between activity restrictions and the risk-taking of banks in different economic situations.

This study provides new insight into the bank literature by investigating the moderating role of competition on activity restrictions and the risk-taking behaviour of banks in a different economic environment.

This paper aims to investigate the immediate effect of the outbreak of the COVID-19 pandemic by investigating volatility transmission and dynamic correlation between stock (conventional and Islamic) markets, bitcoin and major commodities such as gold, oil and silver at different investment horizons before and after 161 trading days of the outbreak of the COVID-19 pandemic.

The MGARCH-DCC and maximum overlap discrete wavelet transform -based cross-correlation were used in the estimation of the volatility spillover and continuous wavelet transform in the estimation of the time-varying volatility and correlation between the assets at different investment horizons.

The authors observed a sudden correlation breakdown following the COVID-19 shock. Oil (Bitcoin) was a major volatility transmitter before (during) COVID-19. Digital gold (Bitcoin), gold and silver became highly correlated during COVID-19. The highest co-movement between the assets was observed at medium and long-term investment horizons.

The study findings have a financial implication for day traders, investors and policymakers in the understanding of volatility transmission and intercorrelation in a bid to actively manage stylized and well-diversified asset portfolios.

This study is unique for its employment in estimating the time-varying conditional volatility of the investable assets and cross-correlations between them at different investment horizons, particularly before and after COVID-19 outbreak.

This study aims to investigate the extent to which the characteristics of Sharia supervisory boards (SSB) in banking institutions impact the disclosure of information pertaining to green banking practices.

A comprehensive dynamic panel data analysis approach was applied to a data set comprising Islamic banks from 15 countries in the Middle East and North Africa (MENA) region, covering the period from 2012 to 2022. In addition, a series of robustness and endogeneity analyses were conducted to ensure the consistency of the main findings.

This study shows that the characteristics of the SSB significantly impact the green banking disclosure practices of Islamic banks. Specifically, the proportion of board members who hold multiple SSB positions and the presence of foreign board members exhibit a negative and significant effect on green banking disclosure. Conversely, the size of the SSB is positively and significantly associated with green banking disclosure. Thus, the extent of green banking disclosure in Islamic banks is likely to increase with the size of the SSB. However, an increase in board members’ external commitments and a higher proportion of foreign board members are associated with a decline in green banking disclosure. Further analysis supports these findings, confirming their consistency across different contexts.

The findings of this study highlight the critical role that the composition and characteristics of the SSB play in shaping the green banking practices of Islamic banks in MENA countries. These insights provide valuable guidance for policymakers and Islamic financial institutions aiming to strengthen sustainability practices while adhering to Shariah principles. As green banking becomes increasingly crucial in the global financial landscape, optimizing the SSB’s composition could be a key driver in advancing the environmental goals of Islamic banking in the MENA region.

Islamic banks in the MENA region should focus on optimizing their SSB composition to enhance green banking disclosure. Increasing the size of the SSB can positively influence disclosure practices. However, banks should manage board members’ external engagements to ensure they have sufficient focus on green initiatives. Strategic recruitment of foreign members with a commitment to sustainability, coupled with targeted training programs, can further improve disclosure.

Specific SSB characteristics such as size and foreign board members influence disclosure of green banking, which previous studies did not conduct research on.

As opposed to conventional promotional methods, Word-of-Mouth (WOM) communication, especially when negative, significantly shapes customers’ repurchase decisions and preferences. Therefore, this study aims to examine the interplay between negative WOM and bank service failures, with a focus on the mediating role of customer switching intentions and the moderating role of switching costs in this relationship.

Using an online semi-structured questionnaire survey, a dataset comprising 411 responses was gathered from retail bank customers in China. This dataset was subsequently analyzed using SPSS PROCESS.

Consistent with the social exchange theory, our study revealed a significant relationship between service failure and both bank customers’ intention to switch and negative WOM communication. Additionally, we observed that switching intentions significantly influence negative WOM communications, acting as a mediator between service failures and negative WOM. Furthermore, our findings indicated that switching costs moderate the direct effect of service failures on negative WOM and moderate the indirect effect of service failures on negative WOM through switching intentions.

This study provides significant policy implications aimed at minimizing bank service failures and subsequent negative WOM communications among bank customers.

This study empirically investigates the role of service failures in promoting negative WOM communication, demonstrating a partial mediation effect of switching intentions in this relationship. Moreover, the study highlights that switching costs moderate service failures’ impact on customers’ switching intentions.

Banks' service failures are a major determinant of bank customers' switching behavior, which ultimately affects the profitability and stability of banks. Guided by the expectancy violation theory (EVT), this study aims to examine whether and how bank reputation influences the relationship between service failure and customers' switching behavior in the Malaysian banking industry.

By distributing questionnaires to Malaysian bank account holders, the authors gathered 320 usable responses, which were subsequently subjected to explanatory factor analysis, confirmatory factor analysis, Logit regression, Probit regression and independent-variables T-test to identify and elucidate the relationship existent between the dependent and independent variables.

This study discovered that bank reputation affects the bank customers' switching behavior directly and indirectly via banks' service failure, thereby verifying the application of EVT in the context of customer management.

Although the profile of respondents in this study presents a reasonable representation of the Malaysian population, the use of convenience (non-probability) sampling method via online survey may not provide generalizable results.

This study empirically revealed that bank reputation plays a moderator role between service failure in banks and customers' bank-switching behavior. This observation offers useful insights to bank managers into the role of bank reputation in managing customers' switching behavior.

The development and maintenance of a long-term relationship with customers are essential for banks to bolster their profits and thrive in a competitive environment. This study aims to explore the key factors that influence individuals' bank-switching behavior in the Malaysian retail banking industry to provide insights to bank managers to develop effective customer retention strategies.

A convenient sampling technique was used to distribute questionnaires to bank customers in Malaysia. A total of 312 utilizable questionnaires were obtained for further analysis. For the data analysis, the authors used explanatory factor analysis (EFA), confirmatory factor analysis (CFA) and logit and probit models to identify the determinants of bank-switching behavior of bank customers in Malaysia.

This study revealed that switching costs, effective advertising from competitors, inconvenience, price factor and service failures significantly influence customers' retail bank-switching behavior in the Malaysian context. The findings bring some significant policy implications for bank management decisions.

The non-probability, convenience online sampling method may not be generalized to the population. However, the descriptive demographic statistics show that the findings provide a reasonable representation of the Malaysian population.

This study empirically investigates the determinants of individual customers' retail bank-switching behavior in the Malaysian context. This study is the first of its kind to observe the unique feature of price factor as a determinant of individual customers' switching behavior in the Malaysian retail banking industry, contrasting previous similar studies in different countries.

The purpose of this paper is to measure and track the evolution of market concentration and competition in the microfinance industry in Bangladesh by employing both the structural and non-structural measurement techniques.

By using a unique panel data set generated from the microcredit regulatory authority (MRA) annual reports, the sample includes 169 microfinance institutions (MFIs) and covers the period 2009-2014. The authors employed the Herfindahl-Hirschman index (HHI) and concentration ratio (CR) (largest 3, 8 and 20 MFIs) as structural measurement techniques and the Lerner index as a non-structural measurement technique. In addition, four different market indicators are used as representatives of deposit and credit markets to better explain the evolution of market concentration.

The results of HHI indicate that the sector is moderately concentrated and currently transitioning to an unconcentrated market. However, based on CR, the industry is still dominated by a few large MFIs. The Lerner index (non-structural approach) also confirmed that the level of competition is relatively high and likely to follow an inverted U-shape during the study period.

The findings of this study will enhance our understanding of the market structure in the Bangladesh’s microfinance industry so as to inform important policy prescriptions. The results also provide impetus to the relatively young MRA to nurture competition in the market; simultaneously, the findings prompt management of the MFIs to cope with a competitive market environment.

This study is one of the first of its kind that includes a large data sample of microfinance market for a single country by employing both structural and non-structural measurement approaches.

The objective of this research is to determine the influence of solvency and liquidity on the profitability [return on assets (ROA)] of Tunisian banks from Q2-2020 to Q3-2022 by considering asset quality as a moderating variable.

This study uses data on liquidity, solvency, ROA and asset quality for 12 banks. It also considers bank size, gross domestic product (GDP) growth and inflation as control variables. The methodology is based on panel data with generalized least squares (GLS) estimation to assess the moderate influence of the asset quality on solvency, liquidity and ROA. Also, the generalized method of moments (GMM) estimation is used as a robustness test.

The results of the GLS model estimation indicated a negatively significant moderating correlation between the liquidity and the solvency. The data from the GMM model indicate that the liquidity variable predicted by the liquidity has a positively significant influence on a bank's ROA as well as for the solvency variable, which is predicted by the capital capacity. Therefore, we conclude that these two variables had a positively significant impact on the ROA.

The studies have many implications for banks and their management in addition to the industry regulators. The results of this study will enable political decision-makers to determine the banks' profits based on their liquidity and solvency.

This analysis provides financial explanations and recommendations for stakeholders in Tunisian banks. Furthermore, these banks must also be able to maintain their liquidity and solvency to ensure their profits in times of COVID-19.