Khaoula Assadi, Jihane Ben Slimane, Hanene Chalandi and Salah Salhi
This study aims to focus on an adaptive method for fault detection and classification of fault types that trigger in three-phase transmission lines using artificial neural…
Abstract
Purpose
This study aims to focus on an adaptive method for fault detection and classification of fault types that trigger in three-phase transmission lines using artificial neural networks (ANNs). The proposed scheme can detect and classify several types of faults, including line-to-ground, line-to-line, double-line-to-ground, triple-line and triple-line-to-ground faults.
Design/methodology/approach
The fundamental components of three-phase current and voltage were used as inputs in the ANNs. An analysis of the impact of variations in the fault resistance, fault type and fault inception time was conducted to evaluate the ANNs performance. The survey compares the performance of the multi-layer perceptron neural network (MLPNN) and Elman recurrent neural network trained with the backpropagation learning technique to improve each of the three phases of the fault detection and classification process. A detailed analysis validates the choice of the ANNs architecture based on the variation in the number of hidden neurons in each step.
Findings
The mean square error, root mean square error, mean absolute error and linear regression are measured to improve the efficiency of the ANN models for both fault detection and classification. The results indicate that the MLPNN can detect and classify faults with a satisfactory performance.
Originality/value
The smart adaptive scheme is fast and accurate for fault detection and classification in a single circuit transmission line when faced with different conditions and can be useful for transmission line protection schemes.
Details
Keywords
Olfa Ben Salah and Anis Ben Amar
The purpose of this paper is to focus on the impact of corporate social responsibility (CSR) on dividend policy in the French context. In addition, the authors seek to determine…
Abstract
Purpose
The purpose of this paper is to focus on the impact of corporate social responsibility (CSR) on dividend policy in the French context. In addition, the authors seek to determine if the individual components of CSR influence dividend policy.
Design/methodology/approach
This study uses panel data methodology for a sample of French non-financial firms between 2008 and 2018. Generalized least squares method is used to estimate the models.
Findings
Using panel data methodology for a sample of 825 observations for the period 2008–2018, this study finds a positive impact of CSR practices on dividend policy. The authors also find that individual components of CSR positively influence dividend policy. To check the robustness of the results, this study further runs a sensitivity tests, including an alternative measure of dividend policy, all of which confirm the findings.
Practical implications
This study has examined the impact of CSR on dividend policy in France and may have implications for regulatory, investors, analysts and academics. First, the involvement in CSR best practices encourages companies to pay more dividends to investors. Therefore, investors are more motivated to invest in socially responsible firms than socially irresponsible firms. Second, given the association of CSR with the quality of accounting information and financial markets, regulators should step up recommendations relating to the different societal dimensions of CSR.
Originality/value
While little previous work has focused on the causal link between CSR and dividend policy, this research is the first, to the authors’ knowledge, to have looked at the impact of CSR on dividend policy in France.
Details
Keywords
Antonios Persakis and Ra’fat Jallad
This study aims to address a research gap by examining the relationship between CEO power, board strength and earnings quality in Gulf Cooperation Council (GCC) countries, a…
Abstract
Purpose
This study aims to address a research gap by examining the relationship between CEO power, board strength and earnings quality in Gulf Cooperation Council (GCC) countries, a region with distinctive economic and governance characteristics. It explores how governance mechanisms impact financial reporting in a context marked by significant corruption challenges and regulatory dynamics. The paper underscores the relevance of the GCC setting because of its unique blend of rapid economic reform, policy shifts toward diversification and evolving governance frameworks influenced by Islamic principles.
Design/methodology/approach
This study uses 5,030 firm-year observations from GCC countries over the period 2003–2022. To test the study’s hypotheses, the authors apply the System Generalized Method of Moments.
Findings
The study reveals a significant negative correlation between perceived corruption and earnings quality, with higher corruption leading to lower earnings quality. It finds that CEO power further diminishes earnings quality and intensifies corruption’s negative effects on financial reporting while strong board governance positively affects earnings quality and reduces the adverse impact of corruption.
Originality/value
By focusing on the GCC – a region undergoing significant regulatory reforms and policy changes – this study enriches the discourse on earnings quality within emerging markets. It provides novel insights into how corruption, CEO power and board strength interact to influence financial reporting quality, offering actionable implications for policymakers and stakeholders navigating these unique economic and governance landscapes.
Details
Keywords
Sajead Mowafaq Alshdaifat, Mohamad Ali Abdul Hamid, Noor Hidayah Ab Aziz, Saidatunur Fauzi Saidin and Mushtaq Yousif Alhasnawi
This study aims to examine the impact of corporate governance (CG) effectiveness measured by board and audit committee index on firm performance of nonfinancial listed firms in…
Abstract
Purpose
This study aims to examine the impact of corporate governance (CG) effectiveness measured by board and audit committee index on firm performance of nonfinancial listed firms in Gulf Cooperation Council (GCC) countries, pre- and during the global crisis of COVID-19.
Design/methodology/approach
The analysis used 2,238 observations from nonfinancial firms listed on GCC countries' stock exchange, covering the period from 2017 to 2022, using a fixed effect panel regression model. The data for this study were manually collected from the annual reports of 373 GCC-listed firms.
Findings
The results demonstrate that the board's effectiveness index has a positive influence solely on accounting-based performance (return on assets) pre- and during the COVID-19 crisis. However, in terms of audit committee effectiveness, the results show a positive impact on market-based performance (Tobin’s Q) both pre- and during the COVID-19 crisis. Additional analysis indicates that the effectiveness of both the board and audit committee is more notable in larger firms compared to smaller firms.
Practical implications
This study is crucial for investors, regulators, managers and governments tackling the financial impacts of global crises like COVID-19. Its comprehensive evaluation of board and audit committee effectiveness guides policymakers and practitioners in enhancing CG for profit and wealth maximization.
Originality/value
This study offers novel evidence detailing the impact of CG effectiveness on firm performance over an extended period, encompassing the COVID-19 period and using a comprehensive index. In addition, this study was conducted in a unique CG setting, focusing on six emerging GCC countries.