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The purpose of this paper is to explore to which extent the quality of social media short text without extensions can be investigated and what are the predictors, if any, of such short text that lead to trust its content.

The paper applies a trust model to classify data collections based on metadata into four classes: Very Trusted, Trusted, Untrusted and Very Untrusted. These data are collected from the online communities, Genius and Stack Overflow. In order to evaluate short texts in terms of its trust levels, the authors have conducted two investigations: (1) A natural language processing (NLP) approach to extract relevant features (i.e. Part-of-Speech and various readability indexes). The authors report relatively good performance of the NLP study. (2) A machine learning technique in more precise, a random forest (RF) classifierusing bag-of-words model (BoW).

The investigation of the RF classifier using BoW shows promising intermediate results (on average 62% accuracy of both online communities) in short-text quality identification that leads to trust.

As social media becomes an increasingly new and attractive source of information, which is mostly provided in the form of short texts, businesses (e.g. in search engines for smart data) can filter content without having to apply complex approaches and continue to deal with information that is considered more trustworthy.

Short-text classifications with regard to a criterion (e.g. quality, readability) are usually extended by an external source or its metadata. This enhancement either changes the original text if it is an additional text from an external source, or it requires text metadata that is not always available. To this end, the originality of this study faces the challenge of investigating the quality of short text (i.e. social media text) without having to extend or modify it using external sources. This modification alters the text and distorts the results of the investigation.

The purpose of this study is to examine the effect of risk sharing and non-risk sharing instruments on both the profitability of Islamic banks and the economic growth of the country. This study also aims to improve the profit and loss sharing-based asset growth of Islamic banks.

The data for this study are obtained from the annual reports of all Islamic banks from Bangladesh using Bank scope database and annual report for the period of 1983–2014. The research uses Autoregressive Distributive Lag approach.

The findings reveal that risk sharing instruments are positively related to profitability and the economic growth of the country. This study also finds that non-risk sharing instruments play a predominant role in the profitability of the Islamic bank but are negatively related to the economic growth of the country.

Banks and other financial institutions need to pay greater attention to systemic risk created by risk transfer and apply risk sharing methods of financing more vigorously than has hitherto been the case.

This study will also contribute to the literature as relatively few Islamic financial literatures deal with the relationship between equity financing and profitability which may make a strong contribution to the area of Islamic finance.

This study aims to propose a practical, virtue-centric model of leadership based on Islamic principles. The structure of the Islamic leadership construct is validated through confirmatory factor analysis. Its relationship with performance and organizational commitment is examined and the mediating role of organizational commitment is assessed.

Islamic leadership model is tested using confirmatory factor analysis with data collected from employees working in the services sector in Turkey. Relationships between Islamic leadership, organizational commitment and performance are examined through a path analysis.

The factor analysis results presented a good fit for the proposed Islamic leadership model, which consists of wisdom, religiosity, justice and kindness dimensions. Regarding path analysis, findings indicated a positive relationship between Islamic leadership and job performance. Moreover, organizational commitment partially mediated the relationship between Islamic leadership and job performance.

Previous studies on Islamic leadership contain a very little number of empirical models. This study proposes a valuable empirical model of Islamic leadership consisting of moral values, spirituality, ethics and wisdom. In addition, the proposed model is supported with empirical pieces of evidence. Evidence of the partial mediating role of organizational commitment between Islamic leadership and job performance is also revealed by the study.

Managerial effectiveness is considered as an essential element for sustainable development and competitive advantage for organisations, and its core conceptualisation revolves around the capability of management to manage self, subordinates and relationships. However, very few research addressed this important phenomenon; this study aims to fill this gap by investigating the mediating role of Islamic work ethics between leadership styles and managerial effectiveness.

Data collection was done through a structured questionnaire, and the hypothesized relationships were tested with the help of SmartPLS.

Results of the statistical analysis showed that transformational and transactional leadership styles are positively associated with managerial effectiveness. Also, Islamic work ethics mediated the association between transactional leadership and managerial effectiveness, and however, no mediation effect of Islamic work ethics was found in the relationship of transformational leadership and managerial effectiveness

Although volumes of research have been conducted into the nature of management and leadership over the past 50 years or so, there have been significant shortcomings in terms of little attention having been given to the issue of managerial effectiveness, lack of generalizability of findings and lack of relevance and utility; thus, this study contributed to human resource management literature by providing a macro-level model to measure managerial effectiveness.

The purpose of this paper is to estimate the prevalence of the risk of overweight and overweight in Qatari children ages 9 through 11 and to compare the prevalence using CDC and IOTF cut‐offs.

A cross‐sectional study in a randomly selected sample of 1,213 Qatari children was carried out. Weight and height were measured and BMI was calculated for all children. The risk of overweight and overweight were defined using as references both the CDC BMI percentiles for age and gender and IOTF cut‐off values.

Weight, height, and BMI increased with age and differences were significant (p<0.0001). According to the CDC and IOTF references, the overall prevalence of the risk of overweight affected 15.8 and 21.1 per cent respectively, while overweight was prevalent in 21.8 and 17.7 per cent respectively. Using either reference, the prevalence of the risk of overweight was higher among girls compared with boys (22.4 per cent, 19.4 per cent respectively), while overweight was higher among boys than among girls (20.6 per cent, 15.5 per cent respectively) but the differences were not statistically significant for both.

This study focused on children aged 9‐11 years, which represents a transition period between childhood and adolescence. Studying overweight in childhood is important since identification of children who may become obese adults can facilitate early intervention and avoidance of the morbidity and mortality associated with adult obesity. Limited studies on the prevalence of overweight have been conducted in Qatar.

Content analysis was used to measure corporate social responsibility (CSR) reporting. The ordinary least squares (OLS) regressions with robust standard errors are used to examine the relationships for a sample of 168 firm-year observations listed on the Palestine Exchange during 2018–2021. A logistic regression is also utilized as an alternative measurement for CSR quantity disclosure and to ensure the robustness of the author’s main findings.

Based on 168 observations listed on the Palestine Exchange (PEX) between 2018 and 2021, this study examines the impact of women's representation on the CSR reporting of Palestinian firms' boards. Moreover, the moderating effect of ownership concentration on the relationship between BGD and CSR reporting is examined. In order to test the hypotheses, the author’s employ OLS regressions with robust standard errors. A logistic regression is also utilized as an alternative measurement for CSR quantity disclosure and to ensure the robustness of the author’s main findings.

The results reveal that Palestinian companies with more women on their boards have higher CSR practices and disclosure levels. In addition to the validity of agency, stakeholder and legitimacy theories, the findings show the relevance of gender socialization and critical mass theories in explaining the favorable influence of women's presentation on boards in promoting best practices among Palestinian firms, such as CSR disclosure.

The study contributes to the limited literature in the MENA and Arab region countries by examining the influence of BGD on CSR reporting in Palestine, an emerging economy characterized by highly political and economic instability. The study offers a novel contribution by examining the impact of BGD, on not only the CSR reporting quantity but also the reporting quality. However, the generalizability of the study is limited due to the small sample size.

The findings of the study may bring the issues of CSR disclosure and female representation on board of directors to the attention of Palestinian firms' board of directors and managers, investors, professional associations, policymakers and regulators. While listed firms are only required to provide general information that falls under the scope of CSR in their annual reports under the Palestinian code of corporate governance, women representation on boards of directors is not addressed.

This study adds to the very limited literature on the role of the BGD in promoting CSR reporting in the Middle Eastern and Arabic markets in general, and in the Palestinian context in particular. This paper not only investigates but also seeks to theorize this role.

This paper aims to explore the director’s work ethics with particular attention given to the Islamic perspectives and prophetic character toward sustaining the performance of the business organizations. As at now, there is a limited code of ethics that can be a guidance for the business organizations and its leaders specifically.

This paper examines and reviews the foundation and prior studies on directors’ work ethics and Islamic work ethics. Then, briefly discuss and present a conceptual review of the directors’ work ethics based on prophetic characters, as well as its application in modern business activities.

Based on Quran and Hadith, this paper proposes that four fundamental moral characters of directors are siddiq (truthfulness), fatanah (intelligent), tabligh (deliver) and amanah (trust).

This paper is conceptual in nature, thus further research needed to empirically test all the characters in actual practices.

The outcome of this paper contributes in way of it can be used and applied by the firm and policymakers to construct a comprehensive code of ethics that based on the Islamic values.

This paper is original as it attempts to suggest the appropriate constructs of directors’ work ethics from the religious studies in the ethics and management literature. These constructs able to increase the integrity and moral behaviors of the directors, which eventually preventing them from a commit in various unethical and malpractices that may obstruct the progress of the country’s economic development and growth.

This study aims to analyse whether investment in green and sustainable stocks provide some cushion during current precarious time. To compare the impact of COVID-19 on the volatility of sustainable and market-capitalisation-based stocks, daily returns from Greenex, Carbonex, Large-Cap, Mid-Cap and Small-Cap index have been analysed over a period of six years from 2015 to 2021.

At the outset, logarithmic return of all selected indices has been tested for possible unit root and heteroscedastic. On confirmation of stationarity and heteroscedasticity of data, auto-regressive conditional heteroscedastic models have been applied. Thereafter, volatility is modelled through best suitable model as suggested by Akaike and Schwarz information criterions.

The findings indicate the positive impact of COVID-19 on the volatility of the indices. Asymmetric power ARCH model indicates highest significant impact of COVID-19 over the volatility of Large-Cap index, whereas exponential GARCH model detected highest significant impact of COVID-19 over the volatility of Mid-Cap Index.

To the best of the authors’ knowledge, the present study is original in the sense that it aimed at comparing the possible impact of COVID-19 over sustainable and market-capitalisation-based indices.

Drawing upon conservation of theory, this study aims to extend the scant literature on the effect of leader-member exchange (LMX) on workplace deviance behaviour (WDB) and adaptive performance by investigating the role of Islamic work ethics as moderators.

A time-lagged and multi-source data of (269 paired responses) of employees working in Islamic banks were used for hypotheses testing.

Taken together, the findings revealed that Leader Member Exchange (LMX) has a positive and significant impact on adaptive performance and is negatively related to employees’ WDB. The results of the moderation effect showed the positive relationship of LMX with adaptive performance and the negative relationship with WDB is stronger for high Islamic work ethics (IWE).

This study provides practical insight that Islamic business ethics plays a significant role in fostering adaptive performance and reducing the deviance behaviour of employees.

To the best of the authors’ knowledge, this is the first study that examined the moderating role of IWE between LMX-adaptive performance and LMX-WDB. This study has also filled the gap of scant literature about the impact of LMX on adaptive performance and WDB.