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1 – 10 of 50Muhammad Rehan and Mustafa Gül
This study aimed to examine the efficient market hypothesis (EMH) for the stock markets of 12 member countries of the Organization of Islamic Cooperation (OIC), such as Egypt…
Abstract
Purpose
This study aimed to examine the efficient market hypothesis (EMH) for the stock markets of 12 member countries of the Organization of Islamic Cooperation (OIC), such as Egypt, Indonesia, Jordan, Kuwait, Malaysia, Morocco, Pakistan, Saudi Arabia, Tunisia, Turkey and the United Arab Emirates (UAE), during the global financial crisis (GFC) and the COVID-19 (CV-19) epidemic. The objective was to classify the effects on individual indices.
Design/methodology/approach
The study employed the multifractal detrended fluctuation analysis (MF-DFA) on daily returns. After calculation and analysis, the data were then divided into two significant events: the GFC and the CV-19 pandemic. Additionally, the market deficiency measure (MDM) was utilized to assess and rank market efficiency.
Findings
The findings indicate that the average returns series exhibited persistent and non-persistent patterns during the GFC and the CV-19 pandemic, respectively. The study employed MF-DFA to analyze the sequence of normal returns. The results suggest that the average returns series displayed persistent and non-persistent patterns during the GFC and the CV-19 pandemic, respectively. Furthermore, all markets demonstrated efficiency during the two crisis periods, with Turkey and Tunisia exhibiting the highest and deepest levels of efficiency, respectively. The multifractal properties were influenced by long-range correlations and fat-tailed distributions, with the latter being the primary contributor. Moreover, the impact of the fat-tailed distribution on multifractality was found to be more pronounced for indices with lower market efficiency. In conclusion, this study categorizes indices with low market efficiency during both crisis periods, which subsequently affect the distribution of assets among shareholders in the stock markets of OIC member countries.
Practical implications
Multifractal patterns, especially the long memory property observed in stock markets, can assist investors in formulating profitable investment strategies. Additionally, this study will contribute to a better understanding of market trends during similar events should they occur in the future.
Originality/value
This research marks the initial effort to assess the impact of the GFC and the CV19 pandemic on the efficiency of stock markets in OIC countries. This undertaking is of paramount importance due to the potential destabilizing and harmful effects of these events on global financial markets and societal well-being. Furthermore, to the best of the authors’ knowledge, this study represents the first investigation utilizing the MFDFA method to analyze the primary stock markets of OIC countries, encompassing both the GFC and CV19 crises.
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Tamer Koburtay, Ahmad Abualigah, Jawad Syed and Abbas J. Ali
This study seeks to offer a contextual, multilevel perspective on the impact of patriarchal culture and Islamic faith on issues facing women holding leadership positions in a…
Abstract
Purpose
This study seeks to offer a contextual, multilevel perspective on the impact of patriarchal culture and Islamic faith on issues facing women holding leadership positions in a Middle Eastern context.
Design/methodology/approach
Data were collected through 25 in-depth qualitative interviews along with open-ended questions in a paper-based survey. In view of the authors' research objectives, the authors purposively recruited participants who were identified as Muslim scholars (academics) and clerics (practitioners).
Findings
While the study challenges the prevailing stereotype that Islam holds women leaders back by referring to Islamic teachings that support gender equality, it also highlights the adverse impact of gender discriminatory misinterpretations of Islam for women leaders. The study identifies three interconnected, multilevel factors that lead to misinterpretations of Islamic teachings, i.e. (1) cultural factors (macro level – i.e. patriarchal and tribal culture), (2) organizational factors (meso level – i.e. organizational policies) and (3) individual factors (micro level – i.e. interpretations and practices of religion).
Research limitations/implications
This study contributes to the existing theory development of religion and women in leadership by presenting a novel model highlighting the interplay between religion, patriarchy and women in leadership.
Practical implications
The study recommends the application of a gender egalitarian system that enables full utilization of women's skills and capabilities by (1) reducing the discriminatory function of tribal culture and (2) identifying steps to reform inegalitarian gender practices in the Arab region.
Originality/value
The research is unique as it is the first time that a study has incorporated Muslim academic scholars' and clerics' views into gender and organization research. The study is thus contextually relevant and offers fresh multilevel insights on the interplay among religion, culture and gender.
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Jawad Khan, Imran Saeed, Muhammad Zada, Henna Gul Nisar, Amna Ali and Shagufta Zada
This study aims to address and observe the positive side of perceived overqualification (POQ) on employee knowledge sharing (KS) and career planning. Role identity theory…
Abstract
Purpose
This study aims to address and observe the positive side of perceived overqualification (POQ) on employee knowledge sharing (KS) and career planning. Role identity theory highlights that an employee’s POQ is related to employee career identity in a positive way.
Design/methodology/approach
The hypotheses were supported by a time-lagged examination of 277 supervisor–subordinate dyads working in the corporate sector.
Findings
The findings state that a person’s career identity is associated with increased KS and career planning. Furthermore, the effect of overqualification on KS and career planning was predicted to be mediated by career identity. Using an interactionism mechanism, this study indicated that this mediation is moderated by leader humility. The career identities of overqualified employees are elevated when a humble leader supports them. The results suggest that, when handled appropriately, POQ may benefit both employees and organizations.
Research limitations/implications
The implications of these results are examined theoretically and practically. Moreover, the findings of this study will open new avenues for scholars and practitioners in the field of organizational behavior and human resource management.
Originality/value
The study examined the positive side of POQ and its effect on employees’ career outcomes and KS attitudes. This study is among the first empirical studies to examine career outcomes and KS behavior due to POQ.
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Nguyen Huu Thien, Jawad Asif, Qian Long Kweh and Irene Wei Kiong Ting
This study analyses the effects of firm efficiency on firm performance and how controlling shareholders moderate the link between the two variables.
Abstract
Purpose
This study analyses the effects of firm efficiency on firm performance and how controlling shareholders moderate the link between the two variables.
Design/methodology/approach
This study employs data envelopment analysis to estimate firm efficiency and the panel regression method to assess the hypothesised relationships among 1,295 firm-year observations of publicly listed firms in Malaysia from 2015 to 2019.
Findings
The results indicate that firm efficiency (technical efficiency, pure technical efficiency and scale efficiency) has mixed relationships with firm performance (return on assets, market-to-book ratio and operating cash flows), all of which are being moderated by controlling shareholdings.
Practical implications
This study highlights the importance of assessing firm efficiency as the key success factor for improving firm performance. Industrial managers should manage efficiently their resources or operating costs in achieving their corporate financial goals. Moreover, this study notes the presence of controlling shareholders, who can be either self-interested or company goal aligned.
Originality/value
This study suggests becoming efficient in transforming inputs into outputs is a prerequisite before investigating accrual-based and cash-based firm performance measures, and the presence of controlling shareholders matters in these regards.
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Kassim Slim Zeni and Geraldine John Kikwasi
The state of public buildings in Tanzania exhibits evidence of a lack of maintenance and repair. Despite efforts to raise the performance of public buildings, little emphasis is…
Abstract
Purpose
The state of public buildings in Tanzania exhibits evidence of a lack of maintenance and repair. Despite efforts to raise the performance of public buildings, little emphasis is placed on maintenance works and related factors affecting maintenance costs of public buildings, which are often high. This study aims to examine factors affecting maintenance costs of public buildings.
Design/methodology/approach
This was a case study involving two government building agencies – Tanzania Buildings Agency (TBA) and National Housing Corporation (NHC). A total of 387 tenants and 29 experts participated in the study. Data were collected using questionnaires and analyzed using Stata version 16 – descriptive statistics feature reporting absolute numbers and frequencies.
Findings
Both tenants and experts ranked building age, poor quality control, building material used, execution of work when it is urgent and inadequate financial resources as major factors affecting maintenance costs of public buildings. In the distinctive rating, tenants ranked resource management as a major factor, while experts ranked ignorance about the property of materials, misuse of buildings and faulty maintenance as major factors.
Research limitations/implications
The study has some limitations such as geographical coverage which is limited to Dar es Salaam and Dodoma regions, hence missing information from other regions may have different experiences. Additionally, data were collected in a self-reported manner which could bring about information bias.
Practical implications
Findings of this study provide an insight on recent developments on the factors affecting maintenance cost of buildings using two cases of NHC and TBA which are single entities owning a substantial amount of housing units in Tanzania. Factors affecting the maintenance cost of public buildings identified in this study is a threshold for experts to devise strategies for minimizing maintenance costs.
Originality/value
To the best of the authors’ knowledge, this is the first study that assessed factors affecting maintenance cost in public buildings run by TBA and NHC from the tenant and expert perspectives.
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Jawad Raza, Mohsin Raza, Tahir Mustaq and Muhammad Imran Qureshi
The purpose of this paper is to study the thermal behavior of radial porous fin surrounded by water-base copper nanoparticles under the influence of radiation.
Abstract
Purpose
The purpose of this paper is to study the thermal behavior of radial porous fin surrounded by water-base copper nanoparticles under the influence of radiation.
Design/methodology/approach
In order to optimize the response variable, the authors perform sensitivity analysis with the aid of response surface methodology (RSM). Moreover, this study enlightens the applications of artificial neural networks (ANN) for predicting the temperature gradient. The governing modeled equations are firstly non-dimensionalized and then solved with the aid of Runge–Kutta fourth order together with the shooting method in order to guess the initial conditions.
Findings
Numerical results are analyzed and presented in the form of tables and graphs. This study reveals that the temperature of the fin is decreasing as the wet porous parameter increases (m2) and the temperature for 10% concentration of nanoparticles are higher than 5 and 1%. Physical parameters involved in the study are analyzed and processed through RSM. It is come to know that sensitivity of temperature gradient to radiative parameter (Nr) and convective parameter (Nc) is positive and negative to dimensionless ambient temperature (θa). Furthermore, after ANN training it can be argued that the established model can efficiently be used to predict the temperature gradient over a radial porous fin for the copper-water nanofluid flow.
Originality/value
To the best of our knowledge, only a few attempts have been made to analyze the thermal behavior of radial porous fin surrounded by copper-based nanofluid under the influence of radiation and convection.
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Muhammad Zada, Jawad Khan, Imran Saeed and Shagufta Zada
This study investigates the link between servant leadership and project management effectiveness in developmental projects in non-governmental organisations (NGOs). Further, this…
Abstract
Purpose
This study investigates the link between servant leadership and project management effectiveness in developmental projects in non-governmental organisations (NGOs). Further, this study examined the mediating role of conflict resolution and moderating role of organisational culture.
Design/methodology/approach
A three-wave survey of 288 non-governmental organisation (NGO) employees was used to evaluate the hypotheses. Hierarchical regression analysis and Hayes' PROCESS macro technique were used for data analysis.
Findings
In this study, servant leadership positively affects employee project management effectiveness in developmental projects in NGOs, and conflict resolution mediates the relationship. Furthermore, the results show that organisational culture moderates the positive relationship between servant leadership and employee project management effectiveness. Moreover, the authors investigated the hypotheses via a moderation mediation model. The strength of the mediated link between servant leadership and project management effectiveness (via conflict resolution) depends on organisational culture strength.
Practical implications
Leaders that practice servant leadership care for their employees genuinely and serve them by allowing them to make their own decisions. Every organisation may benefit from this leadership style since it encourages project effectiveness
Originality/value
New empirical data from this study suggests that servant leadership positively and substantially affects employee project management effectiveness in developmental projects in NGOs.
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Jawad Abbas and Shumaila Mazhar Khan
Based on the sharp decline in the quantity and quality of natural resources, many organizations are shifting their operations to an eco-friendly system. However, this objective…
Abstract
Purpose
Based on the sharp decline in the quantity and quality of natural resources, many organizations are shifting their operations to an eco-friendly system. However, this objective cannot be achieved without capitalizing on green knowledge and innovation. The purpose of this study is to examine whether green knowledge management (GKM) strengthens organizational green innovation capabilities, leading to green performance. Moreover, considering culture as the buffering condition, the authors took it as the conditional boundary between GKM and green innovation and investigated if it impacts their relationship.
Design/methodology/approach
The authors focused on the manufacturing and services firms’ managerial and non-managerial staff and collected data following the non-probability convenience sampling technique. The collected data were examined through structural equation modeling.
Findings
It is found that GKM is a significant positive predictor of organizational green innovation and green performance and strengthens their abilities in these areas. However, green innovation partially mediates between GKM and corporate green performance. It is also found that green culture strengthens the relationship between GKM and organizational green innovation.
Originality/value
This study’s findings provide confidence to organizational managers and related stakeholders to achieve sustainability goals by capitalizing on GKM and promoting green culture in their setup. This study is also among the pioneer studies investigating GKM as a unified system and linking it with environmental performance domains.
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Muhammad Zada, Jawad Khan, Imran Saeed, Shagufta Zada and Zhang Yong Jun
The purpose of this study is to investigate the relationship between sustainable leadership and sustainable project performance. Specifically, the study aims to examine the…
Abstract
Purpose
The purpose of this study is to investigate the relationship between sustainable leadership and sustainable project performance. Specifically, the study aims to examine the mediating role of knowledge integration, examining how knowledge integration within an organization influences project outcomes. In addition, the study seeks to explore the moderating role of top management knowledge values, examining how the values and beliefs of top management influence the relationship between sustainable leadership and project performance.
Design/methodology/approach
A three-wave survey of 392 employees working in construction sector projects in Pakistan used both hierarchical regression analysis and Hayes’ PROCESS macro method to evaluate the hypotheses.
Findings
The study results show that sustainable leadership positively relates to sustainable project performance and knowledge integration mediating this relationship. In addition, the top management knowledge value moderates the indirect effect of sustainable leadership on sustainable project performance via knowledge integration.
Research limitations/implications
Although the model was tested using three-wave data, it is important to note that the data were obtained from a single source. Therefore, it is possible that common method bias may have influenced the results, and this cannot be disregarded.
Practical implications
Organizations seek to prioritize sustainability and integrate sustainability considerations into their project management processes. Organizations can achieve improved sustainable project performance by investing in sustainable leadership development, fostering a culture of knowledge sharing and learning, prioritizing top management support for sustainable performance and integrating sustainable considerations into project management processes.
Originality/value
The study’s grounding on organizational learning theory adds an original and valuable perspective to the relationship between sustainable leadership and sustainable project performance. This investigation is original, as it combines sustainable leadership, knowledge integration and the moderating role of top management knowledge value to understand their impact on sustainable project performance. This unique approach contributes to the literature by providing new insights into these relationships and mechanisms in the construction industry.
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Rosemarie Santa González, Marilène Cherkesly, Teodor Gabriel Crainic and Marie-Eve Rancourt
This study aims to deepen the understanding of the challenges and implications entailed by deploying mobile clinics in conflict zones to reach populations affected by violence and…
Abstract
Purpose
This study aims to deepen the understanding of the challenges and implications entailed by deploying mobile clinics in conflict zones to reach populations affected by violence and cut off from health-care services.
Design/methodology/approach
This research combines an integrated literature review and an instrumental case study. The literature review comprises two targeted reviews to provide insights: one on conflict zones and one on mobile clinics. The case study describes the process and challenges faced throughout a mobile clinic deployment during and after the Iraq War. The data was gathered using mixed methods over a two-year period (2017–2018).
Findings
Armed conflicts directly impact the populations’ health and access to health care. Mobile clinic deployments are often used and recommended to provide health-care access to vulnerable populations cut off from health-care services. However, there is a dearth of peer-reviewed literature documenting decision support tools for mobile clinic deployments.
Originality/value
This study highlights the gaps in the literature and provides direction for future research to support the development of valuable insights and decision support tools for practitioners.
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