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To assess South Africa’s (SA’s) citrus export competitiveness in the global market and identify its macroeconomic drivers.

The Normalized Revealed Comparative Advantage (NRCA) index is employed to measure export competitiveness. An ARDL-EC model is then estimated to identify the macroeconomic determinants of SA’s citrus export competitiveness.

SA’s citrus export competitiveness declined before the mid-1990s and rose thereafter. On balance, the country improved from the fourth to the second most competitive citrus exporter. A long-run relationship was established between the NRCA scores and the real exchange rate and real GDP per capita growth rate. The export price exerted a positive short-run influence on citrus export competitiveness. The rise in SA’s citrus export competitiveness since the mid-1990s was mainly driven by the rising citrus export price and real exchange rate depreciation.

Future research could explore the determinants of SA’s export competitiveness using panel gravity models of bilateral trade flows to isolate the impact of macroeconomic variables and trade restricting/enhancing policies of importing countries.

The article employs the NRCA index, which can measure comparative advantage across space and over time. It is the first to econometrically estimate the macroeconomic determinants of citrus export competitiveness in SA. Application of the ARDL-EC framework yields both short- and long-run effects of macroeconomic variables on export competitiveness.

Advances in information technology and the increasing digitalization of the general public have favored the growth of the sharing economy. The sharing economy is based on transactions of idle resources between individuals to satisfy cogent needs. Notwithstanding the great interest in this emerging phenomenon, it is still not clear which factors are driving the shift in consumer consumption behavior from the traditional economy toward this new economic model. Grounded in self-determination theory, we contend that what is needed is a holistic approach that considers the three elements involved in sharing economy transactions, namely (1) consumer motivations, (2) web-based platforms and (3) types of assets exchanged.

To conduct our study, we used the Flash Eurobarometer 467 database titled “The Use of the Collaborative Economy,” collected by the European Union with Flash Eurobarometer datasets and openly available to the public. Consequently, our study aims to provide results based on a large-scale quantitative analysis involving a large number of individuals and multiple sectors.

Our findings provide empirical evidence of the positive effects of the shift in consumption behavior toward the sharing economy brought about by (1) consumers’ intrinsic motivations, (2) the quality of the platform and (3) the human asset-based categories of products offered.

This research seeks to advance understanding of the factors that facilitate the adoption of the sharing economy, and we provide managers and policymakers with suggestions regarding the factors they may leverage to further favor the spread of this economic model.

The purpose of this study is to examine the resilience of Islamic equities during crisis periods and in times of financial distress and how the industry composition and other characteristics of Islamic financial markets contribute to this resilience.

This study uses panel regressions, pooled regressions and EGARCH models to analyse the impact of various crisis periods and financial distress on the returns and the volatility of Islamic and conventional equities. The main sample covers 48 Islamic and conventional equity indices from 1996 to 2023.

Islamic equity indices are more stable than conventional equity indices during various financial crises and the COVID-19 pandemic. These findings also hold for continuous measures of financial distress and a global crisis index. Industry composition contributes substantially to the relative resilience of Islamic equities. Many performance differences reduce or disappear once controlling for industry. There are additional protective factors of Islamic equities including lower leverage and the exclusion of volatile assets.

The findings provide valuable insights for index construction, risk management and diversification strategies in times of financial instability. Diversification across Shari’ah-compliant firms and industries is beneficial.

This study provides a comprehensive analysis of resilience among Islamic equities in turbulent times, covering multiple binary and continuous measures of financial crises and financial distress. Importantly, it considers the role of industry composition and other factors in contributing to their resilience. These results have implications for index construction and for risk management and diversification strategies in turbulent times.

This study comprehensively aims to review the key influential and intellectual aspects of spillovers between Islamic and conventional financial markets.

The study uses the bibliometric and content analysis methods using the VOSviewer software to analyse 52 academic documents derived from the Web of Sciences (WoS) between 2015 and June 2022.

The results demonstrate the influential aspects of spillovers between Islamic and conventional financial markets, including the leading authors, journals, countries and institutions and the intellectual aspects of literature. These aspects are synthesised into four main streams: research between stock indexes; studies between stock indexes, oil and precious metal; works between Sukuk, bond and indexes; and empirical studies review. The authors also propose future research directions in spillovers between Islamic and conventional financial markets.

Our study is subject to several limitations. Firstly, the authors only used the WoS database. Secondly, the study only includes papers and reviews written in English from the WoS. This study assists academic scholars, practitioners and regulatory bodies in further exploring the suggested issues in future studies and improving and predicting economic and financial stability.

To the best of the authors’ knowledge, no extant empirical studies have been conducted in this area of research interest.

The purpose of this study is to provide a comprehensive exploration of academic research on halal purchasing decisions and consumer behavior by integrating bibliometric and systematic review methodologies.

This study uses a multi-method approach, combining bibliometric and systematic review methodologies, to comprehensively analyze the domain of halal purchasing decisions and consumer behavior. A data set of 184 articles published between 2007 and 2024 was sourced from the Scopus database. The bibliometric analysis was conducted using Bibliometrix in R, facilitating performance analysis, science mapping and network analysis to explore key authors, affiliations, collaborations and thematic trends. Additionally, the systematic review examined the limitations and future research areas discussed in prior studies, providing the basis for formulating potential research questions to address identified gaps.

The study identifies significant contributions within the domain of halal purchasing decisions and consumer behavior, emphasizing the critical roles of religiosity, trust and halal certification as dominant themes. Bibliometric analysis reveals key authors, influential publications and collaborative networks, highlighting Malaysia as a central hub for research in this field. Additionally, the analysis underscores the intellectual structure and thematic evolution, identifying underexplored areas such as non-Muslim perspectives, emerging halal industries and geographic diversity. The systematic review complements these insights by addressing recurring methodological and theoretical limitations, offering targeted recommendations for future research.

This research uniquely combines bibliometric and systematic review methodologies to provide a comprehensive review of the halal consumer behavior literature, identifying limitations and gaps in prior studies and proposing actionable areas for future research.

This study aims to seek to understand counterproductive knowledge behaviour (CKB) in higher education institutions (HEIs) by integrating knowledge hiding (KHi) and lack of knowledge sharing (LKS).

The current research uses a hybrid conceptual review combining the bibliometric study and conceptual review of 47 articles. The bibliometric analysis aimed to identify research maps, and the conceptual review sought to understand the current development of research fields.

The bibliometric analysis highlights essential summaries, such as the pioneering authors, seminal papers and conceptual maps. However, knowledge hoarding as a dimension of LKS appears in the niche theme. The conceptual analysis indicates three groups of factors contributing to KHi and LKS. Moreover, the study highlights the causal relation between both KHi as well as LKS and faculty member performance while proposing remedies derived from integrating the social exchange theory (SET) and conservation of resource (COR) theory.

The present study provides an integrated image of KHi and LKS in the HEI context, as well as its potential remedies by integrating SET and COR. The basis of this study is a literature review; thus, future studies are recommended to empirically explore the integration of KHi and LKS within the HEI context.

This research provides an overview for HEI policymakers to re-examine the critical role of institutional research as one of the considerations for evaluating and developing policies. Specifically, policymakers can reflect on all policy directions to determine whether there are any symptoms of CKB in the institutions. Moreover, stakeholders can find out the reason behind the non-optimal performance of faculty members regarding CKB and any mitigating factors.

Understanding CKB is crucial in managing HEI. This research provides a comprehensive image of KHi and LKS within HEI, especially in a collectivist culture.

The purpose of this study is to evaluate the tannase-assisted extraction of tea stem pigment from waste tea stem, after which the stability of the purified pigment was determined and analyzed.

The extracting process was optimized using the response surface methodology (RSM) approach. Material-liquid ratio, temperature and time were chosen as variables and the absorbance as a response. The stability of the tea stem pigment at the different conditions was tested and analyzed.

The optimized extraction technology was as follows: material-liquid ratio 1:20 g/ml, temperature 50°C and time 60 min. The stability test results showed that tea stem pigment was sensitive to oxidants, but the reducing agents did not affect it. The tea stem pigment was unstable under strong acid and strong alkali and was most stable at pH 6. The light stability was poor. Tea stem pigment would form flocculent precipitation under the action of Fe²⁺ or Fe³⁺ and be relatively stable in Cu²⁺ and Na²⁺ solutions. The tea stem pigment was relatively stable at 60°C and below.

No comprehensive and systematic study reports have been conducted on the extraction of pigment from discarded tea stem, and researchers have not used statistical analysis to optimize the process of tannase-assisted tea stem pigment extraction using RSM. Additionally, there is a lack of special reports on the systematic study of the stability of pigment extracted from tea stem.

The demand for green personal care products (GPPs) has been growing globally due to increasing health-care concerns. However, the purchase rate of these products among consumers remains low. This study aims to identify and model the key barriers to the purchase of GPPs.

For this purpose, the study used innovation resistance theory (IRT) as a framework to identify key barriers to the purchasing of GPPs. The barriers were identified through a systematic literature review and validated by industry and academia experts. Furthermore, using interpretive structural modelling and Matrice d’Impacts Croisés Multiplication Appliquée a un Classement, the study identifies the interrelationships among the barriers and categorizes them based on their driving and dependence power.

The findings reveal that limited availability, improper labelling standard and certification, poor performance of products and lack of government regulations are key barriers to the purchase of GPPs.

The study contributes to the existing literature on green purchase behaviour. Furthermore, it informs marketing strategies to overcome the identified barriers and increase the purchase of GPPs.

This study is the foremost empirical study that identifies and analyses the industry specific barriers to GPPs based on experts’ input and under the purview of IRT.

The present study seeks to assess the effect of Green Human Resource Management (GHRM) on the Sustainable Performance (SP) of wineries as well as to explore the mediating role of Green Innovation (GI) in this respect. In addition, age, size and Protected Designation of Origin (PDO) membership are incorporated as control variables to increase the precision of the cause-effect relationships examined.

A conceptual model was created in order to fulfill the targeted research goals and then validated through PLS-SEM with primary data obtained from a survey administered to 196 Spanish wineries, taking place between September 2022 and January 2023.

The study findings indicate that GHRM has a positive and significant impact on the SP of wineries. In addition, GI appears to partially mediate this relationship.

This study is justified by various grounds for its originality. First, there is a lack of prior research examining the impact of GHRM practices in the wine industry, making this study a unique opportunity to explore and leverage existing knowledge in the fields of environmental management and human resources in order to generate new insights on the topic. Second, the academic literature analyzing this particular construct is scarce, underscoring the aim of this research to contribute to the accumulation of relevant knowledge in this area. Third, GHRM serves to elucidate the mechanisms through which valuable personnel can be attracted and retained in wineries within the post-COVID context.