Mounir Elleuch, Habib Ben Bacha, Faouzi Masmoudi and Aref Y. Maalej
The aim of this paper is to illustrate a solution that can be used to reduce the severity of breakdowns and improve performances in the cellular manufacturing (CM) system with…
Abstract
Purpose
The aim of this paper is to illustrate a solution that can be used to reduce the severity of breakdowns and improve performances in the cellular manufacturing (CM) system with unreliable machines.
Design/methodology/approach
The performance of CM system is conditioned by disruptive events, such as the failure of machines, which randomly occurs and penalizes the performance of the cells, seriously disturbing the smooth working of the factory. To overcome the problem caused by the breakdowns, the authors develop a solution, based on the principle of virtual cell and the notion of intercellular transfer that can improve the availability of the system. In this context, the use an analytical method based on Markov chains to model the availability of the cell. The results are validated using simulation.
Findings
The proposed solution in this paper confirmed that it is possible to reduce the severity of breakdowns in the CM system and improve the availability of the cells through an intercellular transfer created at the time of a breakdown. Simulation allowed a validation of the analytical model and showed the contribution of the suggested solution.
Originality/value
The developed approach studies the performance of the production cells formed by unreliable machines. It uses the notion of the intercellular transfer to improve the availability of the cells.
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Jamshaid Anwar Chattha, Syed Musa Alhabshi and Ahamed Kameel Mydin Meera
In line with the IFSB and BCBS methodology, the purpose of this study is to undertake a comparative analysis of dual banking systems for asset-liability management (ALM) practices…
Abstract
Purpose
In line with the IFSB and BCBS methodology, the purpose of this study is to undertake a comparative analysis of dual banking systems for asset-liability management (ALM) practices with the duration gap, in Islamic Commercial Banks (ICBs) and Conventional Commercial Banks (CCBs). Based on the research objective, two research questions are developed: How do the duration gaps of ICBs compare with those of similar sized CCBs? Are there any country-specific and regional differences among ICBs in terms of managing their duration gaps?
Design/methodology/approach
The research methodology comprises two-stages: stage one uses a duration gap model to calculate the duration gaps of ICBs and CCBs; stage two applies parametric tests. In terms of the duration gap model, the study determines the duration gap with a four-step process. The study selected a sample of 100 banks (50 ICBs and 50 CCBs) from 13 countries for the period 2009-2015.
Findings
The paper provides empirical insights into the duration gap and ALM of ICBs and CCBs. The ICBs have more variations in their mean duration gap compared to the CCBs, and they have a tendency for a higher (more) mean duration gap (28.37 years) in comparison to the CCBs (11.79 years). The study found ICBs as having 2.41 times more duration gap compared to the CCBs, and they are exposed to increasing rate of return (ROR) risk due to their larger duration gaps and severe liquidity mismatches. There are significant regional differences in terms of the duration gap and asset-liability management.
Research limitations/implications
Future studies also consider “Off-Balance Sheet” activities of the ICBs, with multi-term duration measures. A larger sample size of 100 ICBs with 10 years’ data after the GFC would be more beneficial to the industry. In addition, the impact of an increasing benchmark rate (e.g. 100, 200 and 300 bps) on the ICBs as per the IFSB 20 per cent threshold can also be established with the duration gap approach to identify the vulnerabilities of the ICBs.
Practical implications
The study makes profound contributions to the literature and suggests various policy recommendations for Islamic banks, regulators, and standard setters of the ICBs, for identifying and measuring the significance of the duration gaps; and management of the ROR risk under Pillar 2 of the BCBS and IFSB, for financial soundness and stability purposes.
Originality/value
To the best of the authors’ knowledge, this is a pioneer study in Islamic banking involving a sample of 100 banks (50 ICBs and 50 CCBs) from 13 countries. The results of the study provide original empirical evidence regarding the estimation of duration gap, and variations across jurisdictions in terms of vulnerability of ICBs and CCBs in dual banking systems.
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Salim Chouaibi and Habib Affes
Given the rising global interest in the environmental, social and governance (ESG) index, the purpose of this paper is to investigate the impact of social and ethical practices on…
Abstract
Purpose
Given the rising global interest in the environmental, social and governance (ESG) index, the purpose of this paper is to investigate the impact of social and ethical practices on the firm’s environmental disclosure level.
Design/methodology/approach
To test the study’s hypotheses, the authors applied linear regressions with a data panel using the Thomson Reuters ASSET4 and Bloomberg database from seven countries in analyzing data of 523 listed companies selected from the ESG index between 2005 and 2017. Similarly, as an extension of the research and to address the potential unobserved heterogeneity and the dynamic endogeneity, the authors exploited the dynamic dimension of the data set through the generalized moment method (GMM) and estimated the impact of the one-year lagged value of the environmental disclosure.
Findings
The empirical results indicate a growing interest in corporate social responsibility (CSR) and ethical practices over the past decade. Besides, companies with a strong social and ethical commitment obtain significantly higher environmental disclosure scores. The results found with the GMM technique indicate the existence of dependence and continuity in environmental disclosure over time.
Practical implications
The research enables the information user to assess the transparency of the company as well as the quality of the information disclosed on its environment and its future growth opportunities in a context where the approach of business ethics occupies a central position in business valuation. The reached results suggest that the institutional and/or cultural factors affect top management’s environmental reporting behavior regarding the quality of published information.
Originality/value
This paper explores, for the first time, the effect of the social and ethical practices of ESG companies with seven different nationalities as well as its dynamic effect on the adoption of an environmental transparency strategy.
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Pick-Soon Ling, Ruzita Abdul-Rahim and Fathin Faizah Said
This study aims to investigate Malaysian stock market efficiency from the view of Sharīʿah-compliant and conventional stocks based on the effectiveness of technical trading…
Abstract
Purpose
This study aims to investigate Malaysian stock market efficiency from the view of Sharīʿah-compliant and conventional stocks based on the effectiveness of technical trading strategies.
Design/methodology/approach
This study uses unconventional trading strategies that mix buy recommendations of Bursa Malaysia analysts with sell signals generated from 10 selected technical trading strategies (simple moving average, moving average envelopes, Bollinger Bands, momentum, commodity channel index, relative strength index, stochastic, Williams percentage range, moving average convergence divergence oscillator and shooting star) that are detected using ChartNexus. The period from 1 January 2013 until 31 December 2015 produces a total sample consisting of 1,265 buy recommendations of 125 Sharīʿah-compliant stocks and 400 buy recommendations of conventional stocks. The study period is extended until 31 March 2016 to provide an ample time for detecting the sell signal especially for buy recommendations that are released towards the end of 2015.
Findings
The resulting Jensen’s alpha show 8 out of 10 strategies are effective in generating abnormal returns in Sharīʿah-compliant samples while only 3 out of 10 strategies are effective in conventional samples. Prominent effectiveness of technical trading strategies in Sharīʿah-compliant stocks implies clear inefficiency in that stock market segment as opposed to those of the conventional stocks.
Originality/value
The results based on unconventional trading strategies provide new insights of Malaysian stock market efficiency especially in Sharīʿah-compliant and conventional stocks. The paper provides more robust findings on market efficiency as firms’ equity level data were focussed together with analysts’ buy recommendations from Bursa Malaysia.
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Omar Ikbal Tawfik and Hamada Elsaid Elmaasrawy
The purpose of this study is to examine the effect of companies’ Shariah compliance (SC) debt financing decisions, financing with retained earnings (REs), cash holdings, capital…
Abstract
Purpose
The purpose of this study is to examine the effect of companies’ Shariah compliance (SC) debt financing decisions, financing with retained earnings (REs), cash holdings, capital expenditures and dividend pay-out policies.
Design/methodology/approach
The sample consisted of 1,648 firm-year observations of GCC non-financial firms from various industries. The authors scrutinised the firms over a period of eight financial years from 2012 to 2019. To analyse the research hypotheses, the authors used a panel data model using ordinary least squares and generalised method of moments, depending on historical data.
Findings
The results of this study show a negative effect of SC on debt financing decision and dividend pay-out policies but a positive effect on financing decision with REs, cash holdings and the decision on capital expenditures.
Practical implications
This study's findings provide a better understanding of the role of restrictions of financing options in SC companies on financing decisions in the GCC. Whether religious or simply interested in investing in SC companies, investors can benefit from knowing that these companies make financial decisions that may affect their short- and long-term profits for policymakers and regulators. This study may be valuable in evaluating the effect of restrictions imposed by Islamic Shariah on how firms make different financial decisions. Policymakers should encourage the issuance of Islamic financial products and prepare two financial indicators to classify SC firms.
Originality/value
The main contribution of this study is to obtain empirical evidence on the effect of SC on a set of financial decisions. To the best of the authors’ knowledge, this study is the first to focus on non-financial companies committed to Shariah. They do not depend on interest-bearing loans for their financing but are limited to financing by shares, financing with REs and financing using various Islamic financing formulas.
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Anissa Dakhli and Asma Houcine
This paper aims to investigate the direct and indirect relationship between CEO compensation and earnings management using corporate social responsibility (CSR) as a mediating…
Abstract
Purpose
This paper aims to investigate the direct and indirect relationship between CEO compensation and earnings management using corporate social responsibility (CSR) as a mediating variable.
Design/methodology/approach
This study examines 159 French firms listed on the SBF 250 index, encompassing 1,908 firm-year observations from 2011 to 2022, to investigate the relationship between CEO compensation, CSR and earnings management. We used discretionary accruals as the earnings management measure, under the Kothariet al. model (2005). The direct and indirect effects between CEO compensation and earnings management were tested using structural equation model analysis.
Findings
The results reveal that CEO compensation positively influences earnings management. Higher CEO compensation is associated with a greater likelihood of engaging in earnings management practices. CSR was found to partially mediate the relationship between CEO compensation and corporate earnings management. Further analysis indicates that the social and environmental dimensions of CSR contribute significantly to this mediating effect.
Research limitations/implications
The study’s focus on the French institutional context may limit the generalizability of the findings to other regions. In addition, the relatively small sample size, given the limited number of publicly listed firms in France, suggests that extending the study to include other European countries could enhance the robustness of the results.
Practical implications
The findings have practical implications for companies, policymakers and regulators seeking to curb opportunistic managerial behavior. Regulators can develop policies that promote transparency and ethical financial reporting, leveraging CSR as a governance tool to curb earnings manipulation.
Social implications
This study highlights the ethical concerns of excessive CEO compensation, which may incentivize earnings management and undermine financial transparency. It emphasizes the need for strong CSR practices, particularly in the social and environmental dimensions, to mitigate these issues and align corporate behavior with societal and sustainability goals.
Originality/value
The originality of this paper lies in its exploration of both direct and indirect relationships between CEO compensation and earnings management, with CSR acting as a mediating variable. Unlike previous studies that have primarily focused on the direct link between CEO compensation and earnings management, this research investigates the potential mediating role of CSR in this relationship. In addition, this study distinguishes itself by examining the impact of the structure of CEO compensation on earnings management. While the existing literature has concentrated on total CEO compensation, the effects of its individual components such as fixed and variable compensation remain underexplored.
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Hussain Mohi-Ud-Din Qadri, Atta Ul Mustafa, Hassnian Ali and Atta Ul Mustafa Tahir
This study aims to find whether sukuk (Islamic bonds) possess a safe haven property for investors or not.
Abstract
Purpose
This study aims to find whether sukuk (Islamic bonds) possess a safe haven property for investors or not.
Design/methodology/approach
To analyze this statement, the study used data from MSCI World conventional and MSCI World Islamic indices from August 17, 2012 to June 8, 2022. The study used the generalized autoregressive conditional heteroskedasticity (GARCH) variance technique, the most common technique used in stock data analysis.
Findings
The results dictate the absence of sukuk as a safe haven for investors as both the conventional and Islamic markets show decoupling behavior. The study finds concrete evidence of a strong association between the debt-based bond market and the Islamic sukuk market. As these markets mostly like to move in a parallel direction, a recession in a conventional bond market likely means a recession in the Islamic sukuk market.
Originality/value
This study is unique in incorporating the MSCI World Islamic Index and other Islamic indices of several Muslim countries, which was absent in previous research. Second, this study is unique because it adds a separate regression for the COVID era to show whether the movement of indices changed during regression.