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The purpose of this paper is to empirically examine the market efficiency, asymmetric effect and time varying risk–return relationship for daily stock return of Amman Stock Exchange (ASE).

The Box–Jenkins selection model is used to determine the stochastic process of equity returns; the exponential generalized autogressive conditional heteroscedesticity (EGARCH) and threshhold autoregressive conditional heteroscedasticity in mean are utilized to measure the persistent of volatility, risk–return relationship and volatility magnitude to bad and good news.

The univariate statistics show negative skewness, excess kurtosis and deviation from normality for the ASE index. The results show that stock return follows an ARMA (1, 1) stochastic process with significant serial correlation, implying stock market inefficiency. The results also show significant positive relationship between equity return and risk in the ASE, which is consistent with the portfolio theory. The EGARCH model suggests the existence of the asymmetric effect.

The paper offers insights into market efficiency, time‐varying volatility and asymmetric effect in the ASE.

The purpose of this paper is to theoretically describe the role of Zakah as a vital tool of fiscal policy in achieving Pareto optimality.

The paper sets a general equilibrium model that describes the long‐run convergence to a Pareto optimal allocation in a theoretical Islamic economy. The model is based on Diamond criteria where the social planner maximizes the utility of all generations subject to the output of the economy.

While the government in the capitalist economy issues debt like T‐bills and government bonds to insure Pareto optimality, the paper shows, theoretically, that constructing a Zakah fund can take the role of issuing debt in financial markets. Furthermore, the paper shows that Islamic economy converges to Pareto optimality by its nature without issuing debt in the financial market.

This result is very important in describing the strength of the theoretical Islamic economics in achieving dynamic efficiency with least possible interventions. More importantly, the results would help the government in setting an optimal tax rate that insures Pareto efficiency without issuing debt.

This paper attempts to model the actual effects of Zakah as a fiscal policy tool in wealth redistribution in an Islamic economy. In addition, the paper opens a wide channel for future research in conducting monetary and fiscal policy in a government's debt tools economies.

Technology acceptance, especially internet banking adoption, has become a vital issue in the business world today. The potential of this technology is enormous. The purpose of this study is to ascertain determinants of internet banking adoption using unified theory of acceptance and use of technology (UTAUT) and electronic service (e-service) quality, which accounts for changes in user’s intention to adopt internet banking.

The authors collected data from customers of commercial banks using structured questionnaires. The data were collected in four weeks in the beginning of September 2017. A two-stage approach of confirmatory factor analysis (CFA) and structural equation modeling (SEM) were used for data analysis.

The results reveal that integrated UTAUT model had significant influence on user intention to adopt internet banking. Findings of the SEM indicated that approximately 80 per cent of the variance in user intention to adopt internet banking was accounted by predictors. The study schematized that assurance is the most influential factor among all other technology and service quality factors. Additionally, performance expectancy and effort expectancy were found to be positive and significant mediator variables among website design, customer service and customer’s intention to adopt internet banking.

It is recommended that both website designers and managers should focus on technology and service quality factors to boost the confidence of internet banking users. Importance performance matrix analysis suggested that managers should provide assurance to internet banking users, so that they could maintain a long-term relationship with internet banking services. The study calls researchers to test the integrated UTAUT model in other electronic commerce (e-commerce) domains such as online booking or online shopping websites.

To the best of author’s knowledge, this study is the first that extend the UTAUT model with four e-service quality dimensions, namely, website design, customer service, assurance and reliability to investigate user’s intention to adopt internet banking in developing country context of Pakistan. More importantly, the mediating role of performance expectancy and effort expectancy is examined first time within integrated UTAUT model. Furthermore, the integration of UTAUT model contributes to the advancement of internet banking acceptance and offers useful insights to researchers and policy-makers on how to enhance internet banking acceptance among customers of commercial banks.

Family businesses are on the rise and facing severe sustainability challenges. The overall purpose of this thesis is to examine the moderating role of technological resources in the relationship between marketing innovation and family business sustainability.

From a post-positivist perspective, this study utilized a quantitative approach and causal research design. 204 family businesses within the Accra Metropolitan Assembly were sampled for this study. Structural Equation Modeling (SMART PLS 4) was utilized for data analysis after a closed-ended questionnaire was used to gather data.

It was evidenced that marketing innovation has a positive significant effect on family business sustainability. Technological resources have a negative significant moderating effect on the relationship between marketing innovation and family business sustainability.

The originality of this study lies in examining the moderating effect of technological resources on the relationship between marketing innovation and family business sustainability in Ghana, where this phenomenon is less explored.

The purpose of this study is to introduce a unified framework which integrates knowledge management processes (knowledge creation, sharing, storage and documentation and acquisition), innovation capability (product, process, marketing and organizational and organizational performance (operational, financial and product quality). Then empirically test the effect of knowledge management processes (KMP) on innovation capability (IC), the effect of IC on organizational performance (OP) and the impact of KMP on OP through the mediator (IC).

A questionnaire was designed and addressed to the general managers of the Jordanian companies making up the target population. Statistical techniques employed included confirmatory factor analysis and structural equation modeling (SEM) using AMOS 24 to test the hypotheses.

The results show that KMP influences IC, IC affects OP and KMP impacts OP through the mediator (IC).

The use of longitudinal data and comparisons with this study would provide further insights that would assist in generalizing knowledge related to the relationships among KMP, IC and Os' P.

If organizations fully comprehend KMP and IC, they would be able to implement them successfully, creating value for their companies and improving OP.

The existing research on KMP and IC is primarily conceptual and descriptive in nature, and empirical research confirming the real impact of KMP when developing IC is lacking. Also. the relationship between innovation capabilities and OP has not been adequately studied. Hence, this study introduces a conceptual framework which integrates KMP, IC and OP and simultaneously empirically tests the relationships among them.

The purpose of this paper is to expand previous theories of motivation and religious ethics by examining the moderation effect of Islamic work ethic (IWE) on the relationship between perception of politics (POP) and job satisfaction, and turnover intention and negligent behavior (NB).

The sample consisted of 260 workers employed in various sectors in an Asian country. Multiple linear regression analyses were used to test the main effect of the five hypotheses. In addition, moderated models are used to identify factors (IWE) that may change the relationship between independent and dependent variables.

Results revealed that POP was negatively related to job satisfaction, and positively related to turnover intention and NB. IWE was positively related to job satisfaction, and negatively related to turnover intention (confirming previous research findings), and NB (a contribution of the current study). Furthermore, when the moderator variable of IWE was introduced to the relationship between POP and job outcomes, the influence and direction of the POP were altered (a major contribution of this study). In other words, the moderator variable strengthened job satisfaction and reduced both turnover intention and NB of organizational workers.

When the moderator variable of IWE was introduced to the relationship between the POP and job outcomes, the influence and direction of the POP were altered (a major contribution of this study).

This paper aims to examine the effect of capital structure on Islamic banks’ (IBs) performance to provide guidance to finance managers for raising capital funds. As newcomers to the markets, IBs are facing a trade-off. They can either use high capital ratios which increase the soundness and safety of the bank and lower the required return by investors, or depend on deposits and Islamic bonds which are considered cheaper sources of funds due to their tax rebate. An IB’s management must carefully decide the appropriate mix of debt and equity, i.e. capital structure, to maximize the value of the bank.

Using a sample of 85 IBs covering banking systems in 19 countries, the study uses a two-stage least squares method to examine the performance determinants of IBs to control the reverse causality from performance to capital structure.

After control of the macroeconomic environment, financial market structure and taxation, results indicate that IBs’ performance (profitability) responds positively to an increase in equity (capital ratio). The result is consistent with the signaling theory which predicts that banks expected to have better performance credibly transmit this information through higher capital. Optimal capital structure results of the IBs found a non-monotonic U-shaped relationship between the capital-asset ratio and profitability, supporting the efficiency risk and franchise value hypotheses.

Due to limitations for market data, the study uses book accounting ratios. Future research where market data are available could use performance measures, such as Tobin’s Q in performance determinants models.

The non-monotonic relationship found between IBs’ return on equity and capital ratios suggests that equity issuances for IBs’ with low capital ratios (lower than the turning point of 37.41 per cent) are expensive and have a negative effect on their profitability. On the other hand, managers of well-capitalized IBs (banks with capital ratios beyond 37.41 per cent) are advised to rely on equity when faced by a decision to raise capital, as the capital ratio starts to affect their profitability positively.

Islamic banking literature has been silent on IBs’ capital structure and its relevance; this study will try to fill in the existent gap.

This article presents two Brazilian Portuguese corpora collected from different media concerning public security issues in a specific location. The primary motivation is supporting analyses, so security authorities can make appropriate decisions about their actions.

The corpora were obtained through web scraping from a newspaper's website and tweets from a Brazilian metropolitan region. Natural language processing was applied considering: text cleaning, lemmatization, summarization, part-of-speech and dependencies parsing, named entities recognition, and topic modeling.

Several results were obtained based on the methodology used, highlighting some: an example of a summarization using an automated process; dependency parsing; the most common topics in each corpus; the forty named entities and the most common slogans were extracted, highlighting those linked to public security.

Some critical tasks were identified for the research perspective, related to the applied methodology: the treatment of noise from obtaining news on their source websites, passing through textual elements quite present in social network posts such as abbreviations, emojis/emoticons, and even writing errors; the treatment of subjectivity, to eliminate noise from irony and sarcasm; the search for authentic news of issues within the target domain. All these tasks aim to improve the process to enable interested authorities to perform accurate analyses.

The corpora dedicated to the public security domain enable several analyses, such as mining public opinion on security actions in a given location; understanding criminals' behaviors reported in the news or even on social networks and drawing their attitudes timeline; detecting movements that may cause damage to public property and people welfare through texts from social networks; extracting the history and repercussions of police actions, crossing news with records on social networks; among many other possibilities.

The work on behalf of the corpora reported in this text represents one of the first initiatives to create textual bases in Portuguese, dedicated to Brazil's specific public security domain.

This study aims to analyze the concept of Zakat as an instrument to increase the economy and poverty eradication in Indonesia.

This study used a qualitative method based on library research sourced from books, financial reports and another previous research.

The results show that the empowerment programs conducted by Zakat institutions in Indonesia are based on the scale of priorities and the potential of Mustahik. Zakat management considers the level of productivity and long-term impacts that improve Mustahik Economy. Thus, the empowerment programs lead to the reduction of Mustahik living below poverty line.

This study contributes in two ways: first, it analyzes a model to identify the Mustahik’s potential for the Zakat institution in Indonesia. Second, it encourages the awareness of Muzakki and Mustahik regarding the role of Zakat in the Indonesian economy. This is expected to prompt their level of participation in optimizing the potential of Zakat in Indonesia.

Given the scarce literature that provide qualitative and critical reviews of the implementation Zakat empowerment programs to alleviate poverty conducted by the Zakat institutions in Indonesia, this research can act as a bridge for future research in performing empirical studies regarding the impact of a Zakat empowerment program on society.

The purpose of this paper is to examine the impact of knowledge of inventory management practices (KIMP) on operational performance (OP) and business performance (BP). This study emphasized understanding the mediational effect of OPs among KIMP and BP in manufacturing firms of Indian small- and medium-sized enterprises (SMEs).

This study analysed the above relationship from the data collected from 351 key officials of 170 Indian SMEs. The detailed analysis, including reliability, validity and testing hypothesis, was done in advanced SmartPLS-SEM 3.3.3 software.

The findings show that KIMP directly influences OP; thus, a company's OP significantly impacts the overall BP. The KIMP has no significant effect on BP. In line with this, the study findings demonstrate a significant, high mediation effect of OPs between KIMP and BP.

The KIMP on OP has been sparsely studied earlier, and neither have they conceptualized in understanding its impact on BP. In such tumultuous times, key manufacturing executives should stress the importance of KIMP as a comprehensive perspective.