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The aim of this study is to conduct a comparative analysis between Islamic and conventional banks in terms of whether Islamic banks was more or less resilient/risky than conventional counterparts to the pandemic shock. It also examines the role of capital in improving the performance and stability within the two banking systems.

This study uses 82 banks from MENA (Middle East and North Africa) region for periods across 2011–2020, and employs a dynamic panel data approach to examine the resilience within both banking systems during the Covid-19 pandemic.

The results show that the Covid-19 pandemic has a negative impact on conventional banks' stability. However, Islamic banks performed better and were less risky than conventional ones. Banks with high-quality capital are more effective at controlling their risks and improving their performance during the pandemic.

The results offer important financial observations and policy implications to many stakeholders engaging with banks. Actually, the findings of this study facilitate to the stakeholders and bankers to have an alluded picture about determinants of risk and performance. The results can be used by bankers’ policy decision-makers to improve and enhance their consideration for risk management, taking into consideration the type of banking systems.

Compared to the various studies on the stability of Islamic and conventional banks, researchers have not sufficiently addressed the effect of the Covid-19 pandemic on risk and performance. Moreover, none of these studies has examined if Islamic banks was more or less resilient/risky than conventional counterparts to the pandemic shock. This leads the authors to identify the similarities and differences between two types of banks in the MENA region in a pandemic shock context.

This paper aims to examine the factors influencing the extent of information disclosed on the companies’ websites in the Middle East region.

This study uses multiple regression models to examine the impact of some companies’ characteristics (company size, leverage, profitability, size of the audit firm, ownership concentration) on the extent of online disclosure. The study was conducted on 170 listed companies in seven countries (Saudi Arabia, Bahrain, the UAE, Jordan, Kuwait, Qatar and Turkey). The website content was analyzed during the period from September 2015 to December 2015.

The results reveal that the most important factors influencing the level of Web-based disclosure are company size, leverage and the size of the audit firm.

The results of the study will help regulators to formulate policies about Web-based disclosure as they offer insights into the characteristics of those companies which do and do not meet investors’ demands for online information. Thereby, the regulators might expect that the Middle East companies engage in the online reporting to be larger, have higher debt levels and audited by a big-four audit firm.

This study, added to the existing literature by analyzing seven countries in the Middle East region, allows having a clearer idea on the online disclosure in this region as a whole, which has not been examined before. In this paper, to assess the information’s disclosure on the website, the study has been interested in all of the information presented on the websites: financial and non-financial information.

This paper aims to identify and analyze the similarities and differences of the liquidity risk determinants within conventional and Islamic banks.

This study uses a dynamic panel data approach to examine the relationship between liquidity risk and a set of bank-specific and macroeconomic factors during 2005–2015, by selecting 27 Islamic banks and 49 conventional ones operating in the MENA region. More specifically, the dynamic two-step generalized method of moment estimator technique introduced by Arellano and Bond (1991) is applied.

The results suggest that the set of bank-specific variables influences the liquidity risk of both banking systems, while macroeconomic factors determine the liquidity risk of conventional banks. Islamic banks are not affected by macroeconomic determinants.

The research facilitates to the academicians, practitioners and bankers to have an alluded picture about liquidity risk determinants and their management. The findings can be used by bankers’ policy decision-makers to improve and enhance their consideration for liquidity risk management in both banking systems. Indeed, the study makes them aware to manage liquidity risk differently between conventional and Islamic banks, as the results reveal different liquidity risk determinants.

Compared to the abundant studies on the determinants of credit risk, researchers have not sufficiently addressed the factors influencing liquidity risk. Moreover, none of these few research studies has discussed and compared liquidity risk determinants within both banking systems operating in the Middle East and North Africa (MENA) region. This leads us to identify the similarities and differences between conventional and Islamic banks in the MENA region in respect of systematic and unsystematic determinants of the liquidity risk. The value is attributed to the increasing differentiation between Islamic and conventional banks. Islamic banks are characterized with a different liquidity structure distinguishing them from their conventional counterparts.

This paper aims to investigate the question concerning whether tax incentives motivate companies to be socially responsible. This study, specifically, examines the impact of tax incentives for corporate social responsibility (CSR) on the societal practices of Tunisian companies.

This study uses multiple regression models to assess the effectiveness of tax incentives for companies to take responsible actions. The study was conducted on 71 Tunisian companies operating in different sectors.

The results reveal that there is a negative and significant association between tax incentives and CSR practices. Therefore, there is an inefficient use of these types of incentives.

The results of the study have important implications for investors and regulatory basis wishing to enhance CSR by giving tax incentives. Investment in social responsibility may improve the corporate culture and reduce the conflict in companies.

The theoretical contributions relate mainly to the originality of the conceptual model developed, to the literature review and to the theoretical foundations mobilized. In fact, the originality of this research is justified by the scarcity of previous study dealing with the relationship between tax incentives and CSR. Thus, to the best of the authors’ knowledge, this study is one of the first to investigate the impact of tax incentives for CSR on CSR practices.

The aim of this study is to investigate the effect of web - based disclosure on the cost of debt for the MENA region setting.

The sample of this paper consists of 237 MENA listed non-financial companies for the year 2017. Multiple regression models were used to examine the impact of online disclosure on the cost of debt. Content analysis is used to measure the extent of web-based disclosure.

The results reveal that there is a negative and significant association between the web-based disclosure and the company’s cost of debt. These results support the hypothesis of the economic utility of the information disclosed on the website for creditors in this region.

The results of the study have important implications for managers in the MENA region. It is necessary for managers to improve the company’s transparency through web-based disclosure. The companies must benefit from the different technologies offered by the Internet in order to offer to the creditors unlimited access to up to date information. In fact, web-based disclosure may mitigate the information asymmetry, the uncertainty of creditors and, consequently, reduces the cost of debt. 10; 10;Moreover, the results of the study provide empirical evidence for the advantages of voluntary web-based disclosure. The results highlight the importance to companies and regulators of understanding the benefits of using the website as a means of information disclosure. The regulators in MENA countries can rely on these results to establish suitable policies to improve the quality of web-based disclosure. The regulators need also to put in rules in relation to the online disclosure. In fact, an understanding of web-based disclosure is important for regulators and companies. Given the positive effect of online disclosure (the reduction of the cost of debt), knowledge about the economic consequences of web-based disclosure would enable companies in the MENA region to optimize their online disclosure policies.

This study, added to the existing literature by examining the consequences of online disclosure practices in MENA countries. Most previous studies conducted in this region were limited to analyzing the determinants of the company’s web-based disclosure. This paper would extend the literature on the online disclosure practices by investigating the association between these practices and the cost of debt in a developing economics: the MENA region. Previous studies were limited to testing this association only in developed countries.

The purpose of this paper is to examine the relationship between information asymmetry and the quality of the external audit in the Tunisian capital market.

The paper uses panel data methodology.

The results show that the bid‐ask, a market‐based measure of information asymmetry, is negatively related to the employment of an industry specialist and big auditors; and positively related to audit firm tenure. However, further tests refine those conclusions, in that the positive association between tenure and bids‐ask spread differs between specialist and non‐specialist auditors and between Big 4 and non‐Big 4 auditors. Specifically, the paper finds that bid‐ask spreads is increasing in tenure for clients of non‐specialist and clients of non‐Big 4.

The difficulties in specifying correct models for determining the audit quality, the research analyze the auditor's quality such as big auditor, tenure, and specialist. The paper leaves this and other issues for future research.

Analyzing the effect of auditor's quality on information asymmetry and bid‐ask spreads is an emerging economy such as Tunisia is very appealing because earnings quality is the most important quality investors look for. And this research makes a link between two important areas of auditing and finance.

The purpose of this study is to explore the phase change (PC) dynamics in a T-shaped ventilated cavity having multiple inlet and outlet ports during nanofluid convection with phase change material (PCM) packed bed-installed system.

Finite element method was used to analyze the PC dynamics and phase completion time for encapsulated PCM within a vented cavity during the convection of nanoparticle loaded fluid. The study is performed for different Reynolds number of flow streams (Re₁ and Re₂ between 300 and 900), temperature difference (ΔT₁ and ΔT₂ between −5 and 10), aspect ratio of the cavity (between 0.5 and 1.5) and nanoparticle loading (between 0.02% and 0.1%).

It is observed that phase transition can be controlled by assigning different velocities and temperatures at the inlet ports of the T-shaped cavity. The PC becomes fast especially when the Re number and temperature of fluid in the port vary closer to the wall (second port). When the configurations with the lowest and highest Re number of the second port are considered up to 54.7% in reduction of complete phase transition time is obtained, while this amount is 78% when considering the lowest and highest inlet temperatures. The geometric factor which is the aspect ratio has also affected the flow field and PC dynamics. Up to 78% reduction in the phase transition time is obtained at the highest aspect ratio. Further improvements in the performance are achieved by using nanoparticles in the base fluid. The amounts in the phase transition time reduction are 8% and 10.5% at aspect ratio of 0.5 and 1.5 at the highest nanoparticle concentration.

The thermofluid system and offered control mechanism for PC dynamics control can be considered for the design, optimization, further modeling and performance improvements of applications with PCM installed systems.

The purpose of this paper is to discuss accounting development in Tunisia, which is a developing North African country little known in the international accounting literature.

Methodologically, this paper is based on an exploratory approach. It uses the descriptive tradition of research by collecting and analyzing numerical and narrative data to identify and describe environmental factors that favor or hamper accounting development in Tunisia.

This paper indicates that Tunisian companies have been applying the Enterprise Accounting System (EAS) since 1996. This system, while keeping with the logic of a chart of accounts, represents a first attempt to harmonize with international accounting standards. Accounting harmonization in Tunisia is meant to support the strategy, launched in the early 1990s, to integrate the country into the globalization process. Accordingly, the EAS has helped to achieve macroeconomic benefits (public interests). However, it does not lead to the desired level of financial transparency (private interests), especially that of large companies. Currently, Tunisian Accounting Standards neither reflect the rapid evolution of business activity nor changes in international accounting standards. This unachieved harmonization has led some listed companies to comply with some International Financial Reporting Standards which are not included in the EAS.

The unachieved harmonization in Tunisia is mainly related to the political system, taxation factors, the legal system, the weak state of corporate governance and governmental control over standardization.

This paper provides insights into the problems of developing countries that harmonize with international standards to achieve public interests. These countries may encounter many difficulties in bringing their accounting standards up to date. These difficulties seem to be associated with environmental specificities. Accordingly, international standardization bodies and developing country regulators should take into account environmental factors which are determinant for the harmonization decision to succeed.

This paper contributes to the existing literature on accounting development in developing countries. It implies that recent accounting development, as it is designed in Tunisia, is better suited to the needs of small businesses. Large companies would be compelled to complement local generally accepted accounting principles by standards they choose, voluntarily, among international standards.