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1 – 10 of over 1000Investors aim for returns when investing in stocks, making return volatility a crucial concern. This study compares symmetric and asymmetric GARCH models to forecast volatility in…
Abstract
Purpose
Investors aim for returns when investing in stocks, making return volatility a crucial concern. This study compares symmetric and asymmetric GARCH models to forecast volatility in emerging nations like the G4 countries. Accurate volatility forecasting is vital for investors to make well-informed investment decisions, forming the core purpose of this study.
Design/methodology/approach
From January 1993 to May 2021, the study spans four periods, focusing on the global economic crisis of 2008, the Russian crisis of 2015 and the COVID-19 pandemic. Standard generalized autoregressive conditional heteroscedasticity (GARCH), exponential GARCH (E-GARCH) and Glosten-Jagannathan-Runkle GARCH models were employed to analyse the data. Robustness was assessed using the Akaike information criterion, Schwarz information criterion and maximum log-likelihood criteria.
Findings
The study's findings show that the E-GARCH model is the best model for forecasting volatility in emerging nations. This is because the E-GARCH model is able to capture the asymmetric effects of positive and negative shocks on volatility.
Originality/value
This unique study compares symmetric and asymmetric GARCH models for forecasting volatility in emerging nations, a novel approach not explored in prior research. The insights gained can aid investors in constructing more effective risk-adjusted international portfolios, offering a better understanding of stock market volatility to inform strategic investment decisions.
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Mohd Abass Bhat, Shagufta Tariq Khan, Yousuf Mohamed Zahran Al Balushi, Abel Dula Wedajo and Mohammad Haseeb
Based on the extended theory of planned behavior, this study aims to examine potential intentions-related factors that affect Islamic tax compliance moderated by information and…
Abstract
Purpose
Based on the extended theory of planned behavior, this study aims to examine potential intentions-related factors that affect Islamic tax compliance moderated by information and communication technology (ICT) adoption.
Design/methodology/approach
A quantitative cross-sectional design was used to distribute questionnaire sets to 975 working Muslim Omanis by using convenience sampling method. PLS-SEM was mainly used to examine the data.
Findings
All the factors determine behavioral intention to pay Islamic tax (BIIT), which significantly predicts Islamic tax compliance behavior (ITCB). However, perceived control behavior negatively determines intention. ICT adoption moderates the link between BIIT and ITCB.
Practical implications
This study offers both practical and theoretical implications that can guide efforts to promote Islamic tax compliance and advance our understanding of tax behavior within the ETPB framework.
Originality/value
This study accounted for crucial factors determining intention than earlier ones using the ETPB. Considering technological advancements, the study also assessed the moderating role of ICT between BIIT and ITCB.
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Fatih Çelik, Selçuk Yasin Yıldız, Behcet Yalin Ozkara, Mehmet Safa Çam and Blend Ibrahim
The study investigates the antecedents and consequences of digital ad avoidance in the e-commerce industry. This study aims to investigate how digital ad avoidance relates to…
Abstract
Purpose
The study investigates the antecedents and consequences of digital ad avoidance in the e-commerce industry. This study aims to investigate how digital ad avoidance relates to internet usage over time, using a two-wave longitudinal research design. This study also explores how real-world advertising clutter (clutter and non-clutter) affects these relationships.
Design/methodology/approach
The data were collected from 192 online consumers in Türkiye, and a two-wave longitudinal research design and structural equation modeling were conducted to test the hypotheses of the conceptual model.
Findings
The results indicated that perceived goal impediment and prior negative experience had positive effects on affective avoidance in both ad-clutter and non-clutter periods. Further, affective avoidance had a significant positive effect on both cognitive and behavioral avoidance in either period. In addition, ad clutter moderated the effects of cognitive and behavioral avoidance on online purchase intention.
Originality/value
This research provides new evidence of the crucial role perceived goal impediment, prior negative experience and perceived control each play in driving digital ad avoidance. This paper contributes to the body of knowledge in the field by exploring how advertising clutter (both cluttered and non-cluttered settings) moderates these relationships through a two-wave longitudinal study.
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Informal housing stands out as a major challenge surrounding the massive reconstruction of Syrian cities, devastated by a bloody war and a terrible earthquake. The purpose of this…
Abstract
Purpose
Informal housing stands out as a major challenge surrounding the massive reconstruction of Syrian cities, devastated by a bloody war and a terrible earthquake. The purpose of this article is to assess the adequacy of the Syrian Law to adequate provide a solution to this problem.
Design/methodology/approach
With the purpose of informing the question, this paper offers a legal-institutional analysis of the informal housing phenomenon and the corresponding regulatory responses in Syria. A literature review is conducted, and functional analysis of the legal texts and their effective implementation is provided.
Findings
First, informal housing in Syria has been fostered by the existence of an erratic regulation, particularly burdened by the incoherence of passing repressive provisions against informal housing while master plans were conspicuously absent or incomplete. Second, the regulatory policy seems to be leaning toward the urban renewal option, indicating a supply-oriented housing approach that may face serious challenges due to the scarcity of capital. In this context, regulation should not underestimate any policy tools at hand (renewal and upgrading; with the contribution of public, private and cooperative sectors).
Originality/value
Although there have been several studies on informal housing in Syria, none has taken a legal institutionalist approach. Furthermore, this study offers an up-to-date account of the problem, taking into account the problematic after the 2023 earthquake and the content of Law 2/2023.
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Ahmet Elnur, Çağdaş Aydın and Ceren Aydın
The importance and value of the leisure phenomenon are becoming more prominent daily as it becomes a determining indicator of both qualities of life and social welfare. The…
Abstract
The importance and value of the leisure phenomenon are becoming more prominent daily as it becomes a determining indicator of both qualities of life and social welfare. The COVID-19 pandemic, which has caused severe disruptions in the lifestyles of individuals, has also made it inevitable to face the emergence of sociocultural conditions in which traditional daily life routines have disappeared and the reorganisation of the leisure space. In line with the conditions mentioned earlier, the characteristics of the ‘new’ and the ‘old’ have started to come together in the daily lives and leisure spaces of individuals in constant conflict. Under these conditions, individuals who spent their leisure time travelling from one place to another before the pandemic had to choose different leisure options. Therefore, the leisure space, which is an integral part of the social life of today's individual, has evolved into an unthinkable position independently of the COVID-19 pandemic effects. From this point of view, this study aims to examine the transformation of the leisure space due to the COVID-19 pandemic within the framework of previous studies on this subject and to discuss it in the context of sustainability. For this purpose, firstly, a general framework is drawn on the historical development of the leisure concept, and then its relationship with the COVID-19 pandemic is evaluated. In the last part of the study, the new forms of leisure that have emerged due to the process, as mentioned earlier, are discussed over the critical issues in ensuring the sustainability of leisure practices.
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Hanady Bataineh, Amneh Alkurdi, Ala’a Adden Abuhommous and Mohammad Abdel Latif
This paper aims to explore the extent of corporate social responsibility disclosure (hereafter CSRD) in Jordan and also examine whether ownership structure, board of directors and…
Abstract
Purpose
This paper aims to explore the extent of corporate social responsibility disclosure (hereafter CSRD) in Jordan and also examine whether ownership structure, board of directors and audit committee characteristics influence CSRD.
Design/methodology/approach
The extent of CSRD is measured by constructing a CSRD index for industrial firms listed on the Amman Stock Exchange from 2016 to 2021. Panel regression analysis is used to examine the potential effect of ownership structure, board of directors and audit committee on the level of CSRD.
Findings
This study provides empirical evidence that diverse groups of shareholders have different effects on CSR engagement, and board characteristics (board size, board independence and gender diversity) play a vital role in increasing voluntary disclosure, including CSR information. There is no evidence to support that CSRD is influenced by audit committee characteristics.
Practical implications
This study recommends that corporate regulators and policymakers can improve CSRD practices by expanding the scope of existing disclosure requirements related to CSR and developing a structured CSRD index to measure the degree of CSRD practices for comparative purposes. Encourage firms to actively participate in social responsibility programs by granting tax incentives and government facilities to firms with the best CSR reports. Policymakers should introduce initiatives that support female’s representation on board. Finally, firms should restructure their boards by increasing board size and the percentage of independent directors to enhance their effectiveness to support CSRD.
Originality/value
This paper contributes further insights into the literature on CSRD practices and disclosure by analyzing data from developing market contexts.
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Junan Ji, Zhigang Zhao, Shi Zhang and Tianyuan Chen
This paper aims to propose an energetic model parameter calculation method for predicting the materials’ symmetrical static hysteresis loop and asymmetrical minor loop to improve…
Abstract
Purpose
This paper aims to propose an energetic model parameter calculation method for predicting the materials’ symmetrical static hysteresis loop and asymmetrical minor loop to improve the accuracy of electromagnetic analysis of equipment.
Design/methodology/approach
For predicting the symmetrical static hysteresis loop, this paper deduces the functional relationship between magnetic flux density and energetic model parameters based on the materials’ magnetization mechanism. It realizes the efficient and accurate symmetrical static hysteresis loop prediction under different magnetizations. For predicting the asymmetrical minor loop, a new algorithm is proposed that updates the energetic model parameters of the asymmetrical minor loop to consider the return-point memory effect.
Findings
The comparison of simulation and experimental results verifies that the proposed parameters calculation method has high accuracy and strong universality.
Originality/value
The proposed parameter calculation method improves the existing parameter calculation method’s problem of relying on too much experimental data and inaccuracy. Consequently, the presented work facilitates the application of the finite element electromagnetic field analysis method coupling the hysteresis model.
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Richa Goyal, Himani Sharma and Aarti Sharma
In the organizational behaviour literature, psychological capital (psycap) has been identified as a significant variable affecting the engagement level of employees. Relying on…
Abstract
Purpose
In the organizational behaviour literature, psychological capital (psycap) has been identified as a significant variable affecting the engagement level of employees. Relying on this, this study aims to examine the association between psycap sub-constructs and employee engagement (EE) using systematic review and meta-analysis techniques.
Design/methodology/approach
The study analyzed 28 primary studies (selected through a systematic review of literature by incorporating inclusion and exclusion criteria) via meta-analysis techniques conducted using Meta-Essential Software (1.5). Along with this, the Cohen Kappa reliability test and the trim and fill technique have been applied, followed by moderator analysis.
Findings
The results of the study contribute to the extant literature in three ways. Firstly, the study confirms the positive association between psycap sub-constructs and EE. Secondly, it looks into the individual constructs of psycap and shows that hope is the primary component that influences EE, followed by optimism, efficacy and resilience. Thirdly, the country acts as a moderator between psycap and EE.
Research limitations/implications
The study’s result highlights numerous implications, suggesting that organizations should focus on bringing out the latent “HERO” (hope, efficacy, resilience and optimism) qualities of their employees to make the workplace more engaging. Lastly, the study concludes by pointing out the limitations and highlighting future directions.
Originality/value
Being the first systematic review and meta-analytical study focusing on psycap sub-constructs and EE associations, this study contributes to the engagement literature.
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Samuel Osei-Gyebi and John Bosco Dramani
The purpose of this study is to analyze the nonlinear relationship between electricity consumption (EC) and electricity transmission losses (ETL) in Ghana. Also, we examined how…
Abstract
Purpose
The purpose of this study is to analyze the nonlinear relationship between electricity consumption (EC) and electricity transmission losses (ETL) in Ghana. Also, we examined how ETL moderate the effect of EC on economic growth in Ghana from 1980 to 2021.
Design/methodology/approach
We used timeseries data from 1980 to 2021 within an autoregressive distributed lag framework to analyze the links among ETL, EC and economic growth in Ghana.
Findings
Findings show the existence of an asymmetric long-run relationship between EC and ETL. Also, the negative effects of ETL on EC are bigger in the long run. In addition, ETL and EC combine to reduce economic growth, in the long run, providing evidence for the energy-led growth theory in Ghana. Population and inflation were also found to have a significant effect on economic growth in Ghana.
Originality/value
We examined the nonlinear nexus of EC and ETL, which extant studies have ignored in discussing the link between EC and economic growth. Again, we showed that ETL reduces EC causing a reduction in economic growth.
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Shafia Rana, M. Nawaz and Sayer Obaid Alharbi
The purpose of this study is to analyze the transportation of heat and mass in three-dimensional (3D) shear rate-dependent viscous fluid. Thermal enhancement plays a significant…
Abstract
Purpose
The purpose of this study is to analyze the transportation of heat and mass in three-dimensional (3D) shear rate-dependent viscous fluid. Thermal enhancement plays a significant role in industrial and engineering applications. For this, the authors dispersed trihybrid nanoparticles into the fluid to enhance the working fluid’s thermal enhancement.
Design/methodology/approach
The finite element method is a numerical scheme and is powerful in achieving convergent and grid-independent solutions compared with other numerical techniques. This method was initially assigned to structural problems. However, it is equally successful for computational fluid dynamics problems.
Findings
Wall shear stress has shown an increasing behavior as the intensity of the magnetic field is increased. Simulations have predicted that Ohmic heat in the case of trihybrid nanofluid (MoS2–Al2O3–Cu/C2H6O2) has the greatest value in comparison with mono and hybrid nanofluids. The most significant influence of chemical reaction on the concentration in tri-nanofluid is noted. This observation is pointed out for both types of chemical reaction (destructive or generative) parameters.
Originality/value
Through a literature survey, the authors analyzed that no one has yet to work on a 3D magnetohydrodynamics Carreau–Yasuda trihybrid nanofluid over a stretched sheet for improving heat and mass transfer over hybrid nanofluids. Herein, molybdenum disulfide (MoS2), aluminum oxide (Al2O3) and copper (Cu) nanoparticles are mixed in ethylene glycol (C2H6O2) to study the thermal enhancement and mass transport of their corresponding resultant mono (Cu/C2H6O2), hybrid (Al2O3–Cu/C2H6O2) and trihybrid (MoS2–Al2O3–Cu/C2H6O2) nanofluids.
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