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Changes are required to improve the performance of Sharia banking in Indonesia. Using dynamic capability theory, this study aims to analyze organizational learning, change process and change context (OCC) in Bank Syariah Indonesia as influenced by market orientation (competitor and customer orientation) and moderated by religiosity and its impact on organizational performance (Maqashid Sharia) using a multilevel perspective.

To test the hypothesis, this research surveyed by distributing online questionnaires to managers and employees at 62 branch offices of Bank Syariah, the largest Sharia bank in Indonesia. Data processing involved multilevel structural equational modeling with Mplus analysis software.

Market orientation determines an organization’s ability to change significantly, which leads to organizational performance being significantly moderated by religiosity. In OCC, organizational learning influences change context through change processes, ultimately influencing organizational performance (Maqashid Sharia).

This research used a multilevel perspective by combining market orientation and OCC variables moderated by religiosity and its impact on Maqashid Sharia. This study was conducted at the largest Sharia bank in Indonesia, Bank Syariah Indonesia.

This paper aims to study the co-movement dynamics of Islamic equity returns to explain international portfolio diversification opportunities for investors having a heterogeneous stock holding period in light of Brexit.

The authors use the following three recent methodologies: the multivariate generalised autoregressive conditional heteroskedastic-dynamic conditional correlations, continuous wavelet transforms and maximum overlap discrete wavelet transform. Dow Jones Islamic country-based indexes are used from 2 September 2013 to 31 December 2019.

There is a high correlation between the United Kingdom (UK) Islamic stock market return with the Canadian, USA, Malaysian and Indian implying lesser diversification benefits for the investors. However, the results tend to indicate that UK Islamic stock market investors who have allocated their investment in Sri Lanka, Kuwait, Japan and Turkey have enjoyed diversification benefits. Besides, there is a declining correlation between UK Islamic stock markets and other selected markets aftermath of Brexit. Turkey seems the most volatile stock over the period, appealing to risk-lover investors to gain from price changes. When the shock occurs in the financial sector, the volatility is mean-reverting faster than other markets in Sri Lanka. On the other hand, Malaysia appears to have the least volatility implying a stable financial sector.

The results tend to shed light on effective portfolio diversification benefits in light of the recent shock (Brexit) between the UK Islamic stock index and other selected indexes that vary from country to country depending on investment horizons. This critically confirms the significance of heterogeneity in investment horizons and provides significant inferences for portfolio diversification strategies.

To the best of the authors’ knowledge, this study is the first study investigating the Brexit effect on Islamic stocks, guiding Shariah sensitive investors in their diversification strategies, providing information to investors to consider the implications of this incident on Islamic stocks for future shocks.

This study investigates the determinants of net interest margin (NIM) and tests the decoupling hypothesis in Turkey's Islamic and conventional banks.

This study has employed a panel quantile model (PQM) to assess the net interest margin (NIM) and test the decoupling hypothesis in the dual banking system of Turkey.

The empirical results show that the impact of equity is positive for both Islamic and conventional banks but relatively more robust for Islamic banks. Moreover, it is observed that return on assets has a positive association with NIM in both types of banking systems. Interestingly, the impact increases from lower to higher quantiles, but a higher acceleration rate is observed for Islamic banks. The study also finds that, as bank stability increases, NIM decreases for both groups of banks but more stably for Islamic banks, resulting in lower margins than conventional banks. Thus, the paper confirms the decoupling hypothesis and suggests that, to increase profit margins, Islamic banks need to increase assets and equity.

The paper confirms the decoupling hypothesis and suggests that to increase profit margin, Islamic banks need to increase assets and equity.

Since both equity and assets contribute positively to interest margins, policymakers in the industry need to increase the size of equity and assets to get maximum returns.

This is one of the first studies to investigate NIM's determinants and test the decoupling hypothesis in the Turkish dual banking system using a non-parametric MCMC panel quantile regression (QRM) model.

The increasing number of papers on zakah shows that it has become an important research topic. However, few studies attempt to analyze the evolution of zakah studies which might be helpful as guidance for policymakers in creating zakah management systems and policies, for zakah management organizations administering zakah funds, for future research on related subjects and for academic actors to construct a zakah study curriculum. This study aims to conduct a bibliometric analysis of the evolution of zakah theme publications from 1964 to 2021.

This study uses bibliometric analysis to analyze the evolution of zakah research. This study compared all Scopus-indexed journal papers to Zakah publications regarding research flow, themes, abstracts and titles. The relationships between researchers, the titles of the papers and keywords associated with “zakah” are analyzed in these publications published between 1964 and 2021. A total of 632 scientific contributions were discovered using RStudio and VOSviewer to analyze the bibliometric metadata.

Based on the results, the theme of zakah has evolved from 1964 to 2021. The author emphasizes the zakah publication theme. Each affiliation and country have its conditions, management method, data sources and characteristics. The theme “zakah institutions and zakah collecting” grew in popularity between 2010 and 2021 and is projected to grow in the following years. Malaysia, Indonesia and Pakistan can be used as zakah development research models. In spans of zakah publications, the author with the most global citations is Wahab N.A., and the author with the most productive is Saad Raj.

Zakah publications are analyzed using the Scopus database. This study applied only Scopus index data, excluding non-Scopus, and most studies conducted in non-English languages. This conclusion indicates the issue’s importance among academic researchers and practitioners, notably on the subject of zakah. Thus, a comprehensive picture of zakah theme publications assists researchers and zakah fund institutions in making assessments, focusing on the unstudied fraction of the zakah theme.

This research is planned to serve as a reference for future research, particularly examining the theme’s novelty. It is intended to have implications for policymakers, particularly zakah institutions, regarding funding the several zakah research issues and concentrations.

This research can guide future researchers and is expected to include parameters such as author, year and data source while analyzing zakah publications to generate new findings.

This is probably one of few comprehensive studies that examined the evolution of the zakah theme using the Scopus-indexed database. The relevance of this paper is to provide suggestions and projections for future zakah research. Scholars should examine zakah publications by author, year and data source to gain fresh insights. Search for data sources with high-impact factors and objective metrics, then clear out irrelevant documents to improve the analysis’ quality and findings.

Global warming is a process that takes place 11,500 years after the end of the last Ice Age. The main identified reason is the increased emissions of greenhouse gases (GHGs). Since the nineteenth century, GHG evolution has recorded a quantum leap from the previous linear development. Human is the main factor behind this evolution, through industrialization and the exponential increase of population. Based on these, the chapter’s primary goal was to highlight an original method of predicting the future evolution of GHG emissions in the domains of Energy (including Transportation), Industry Processes and Product Use, Agriculture, and Waste Management. The novelty of the research consisted of testing several variants of functions (power, exponential, inverse trigonometric) to identify, from a group of variants. This optimal function would generate those predictions, which are closest to the real values. The causes that create GHG emissions in each of the four domains were the foundation for the analysis. This chapter focuses on two main subjects: first, the identification of a smooth function to predict the evolution of GHG emissions, and second, the function’s use to estimate the projections of GHG emissions in the coming years for the four domains: Energy (including Transportation), Industry Processes and Product Use, Agriculture, and Waste Management. An observation was that the weights of these four domains remain relatively the same despite the reductions in the total GHG emissions.

Introduction: – Together with the increasing competition between businesses each day, the sales and marketing process of products and services have become increasingly difficult. For this reason, sales have become a marketing activity with an ever-growing importance to businesses. The performance of salespeople who undertake this challenge on behalf of the business is highly valuable for firms. Many researches have noted that there is a relationship between the performance of salesperson and motivation. The purpose of motivation in sales literature is to direct salespeople to exert more effort in reaching sales-oriented goals and aims. In order to ensure this, many businesses use various motivation tools/factors.

Purpose – The aim of this study is to analyse the effect of motivation factors on performance of salesperson.

Methodology – Quantitative research method was used in the study. A questionnaire was prepared with this aim in mind and administered to 315 employees working as salesperson in Çanakkale and Bursa provinces.

Findings – The findings from the analysis of the data show that the five dimensions namely satisfaction, image, relations, knowledge of product and service and advertisement related to motivation factors have a significant effect on the task performance of the salesperson.

This study aims to investigate the tribological performance of neat polyamide-imide (PAI) and PAI composite (PAI + 12% graphite + 3% polytetrafluoroethylene [PTFE]) under varying mediums and conditions, including dry sliding, distilled water and seawater lubrication, to determine their suitability for high-stress applications.

Tribological tests were conducted using a pin-on-disc setup with AISI 316 L stainless steel (SS) as counterface. Experiments were carried out under loads of 150 and 300 N and sliding speeds of 1.5 and 3.0 m/s. Values of temperatures, friction coefficients and wear rates were recorded to analyze the effect of fillers and lubrication mediums.

The PAI composite outperformed the neat PAI under all conditions, showing significant reductions in friction coefficients and wear rates. Seawater lubrication yielded the best results, achieving friction coefficients of 0.05 and 0.01 and specific wear rates of 18.10⁻¹⁶ m²/N and 1.10 ⁻¹⁵ m²/N, for neat PAI and PAI composite, respectively. Graphite and PTFE fillers enhanced lubrication, reduced surface temperatures and mitigated abrasive and adhesive wear mechanisms. Superior cooling and lubrication effects of the seawater contributed to these improvements.

Previous studies mainly focused on dry sliding and distilled water lubrication for the PAI and its composites, with no research on the seawater conditions. This study compares the tribological behaviors of the neat PAI and PAI composite against AISI 316 L SS under dry sliding, distilled water and seawater lubrication.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2024-0302/