Mehdi Yazdanshenas and Mehdi Mirzaei
This study aims to investigate the effect of leadership integrity on employees’ success. In this regard, the mediating role of ethical leadership and the moderating role of…
Abstract
Purpose
This study aims to investigate the effect of leadership integrity on employees’ success. In this regard, the mediating role of ethical leadership and the moderating role of psychological capital and psychological empowerment were considered as well.
Design/methodology/approach
This study is an applied research and a descriptive-correlation survey that used quantitative data. Data were collected from 302 employees of a large factory in Iran who was selected randomly. The research questionnaire consisted of 54 statements and was distributed among the sample. Data was analyzed through confirmatory factor analysis and structural equation modeling.
Findings
The findings of this study show that leader integrity and ethical leadership have a positive effect on employees’ success and psychological capital and psychological empowerment moderate these effects. Moreover, leader integrity has an indirect effect on employees` success through employees’ perception of ethical leadership.
Originality/value
This study mainly contributes by explaining two sets of variables related to leaders’ behavior and employees’ cognitive competence which are complementary in improving employees’ potential success. The results highlight that leaders’ behavioral integrity can amplify ethical leadership which can ultimately leads to employees’ success if they have a high psychological empowerment and psychological capital.
Details
Keywords
Mahmoud Lari Dashtbayaz, Mahdi Salehi, Alieyh Mirzaei and Hamideh Nazaridavaji
The purpose of this study is to evaluate the impact of corporate governance on intellectual capital (IC) in companies listed on the Tehran stock exchange.
Abstract
Purpose
The purpose of this study is to evaluate the impact of corporate governance on intellectual capital (IC) in companies listed on the Tehran stock exchange.
Design/methodology/approach
In this paper, the board features (size, independence and CEO duality) and the characteristics of the audit committee (financial expertise, independence and size) are considered to measure the factors of corporate governance. The IC is also divided into communicative, human, structural and value-added IC. Research data are gathered using a sample of 132 companies during 2013-2016. Research hypotheses are analyzed using panel data and logistic regression models.
Findings
The findings indicate that while the board’s independence, financial expertise and the size of the audit committee are negatively related to the communicative capital, the relationship between audit committee independence and communicative capital is positive and significant. Further, the authors observe that there is a positive relationship between board independence and human capital, a negative and significant link between audit committee size and human capital. By the way, the results reveal that audit committee independence and audit committee size have, respectively positive and negative impact on structural capital.
Originality/value
The results of the current study may give more insight into the relationship between corporate governance and managerial capital in developing nations.
Details
Keywords
Mohammad Mehdi Mohammadi, Mehdi Safari Gerayli, Maryam Shahri, Hasan Valiyan and Farhad Dehdar
The citizen-shareholder approach in the capital market is considered a knowledge-enhancing and emerging concept in financial and accounting offerings. Its reliable background in…
Abstract
Purpose
The citizen-shareholder approach in the capital market is considered a knowledge-enhancing and emerging concept in financial and accounting offerings. Its reliable background in management and human sciences makes it an essential basis for protecting the interests of shareholders and investors. Shareholders are considered a necessary part of the social platforms that are companies and regulatory institutions in the capital market; beyond being obligated to protect their material and intellectual rights, they are responsible for developing norms and facilitating investment values and gaining trust through mutual interactions based on respect for their interests. The purpose of this paper is to perform interactive qualitative analysis of the requirements for protecting the rights of citizens of capital market shareholders.
Design/methodology/approach
The methodology of the research is mixed, so that in the qualitative part, through content screening, the dimensions related to the protection of the citizen rights of the capital market shareholders were identified through a systematic review of 10 research in the period of 2017–2022. Then, the reliability of the specified dimensions was examined through Delphi analysis; in the quantitative part of the research, the criteria identified through the pairwise comparison matrix were first determined by the level of their relationships to determine based on the pattern of systemic representation of drivers and the consequences of requirements to protect the rights of citizens of capital market shareholders.
Findings
The research results in the qualitative part indicated the existence of 12 primary themes; during the two stages of Delphi analysis, three themes were removed, and a total of nine themes entered the quantitative phase. The results in a quantitative part indicate the creation of specialized and active committees of the board of directors as the primary driver and the reliability and timely disclosure of information in the long term as a systemic consequence.
Originality/value
To the best of the authors’ knowledge, this is the first research that presents the new concept of citizen shareholders to strengthen the requirements of protecting the rights of shareholders in the capital market while developing new theoretical literature.
Details
Keywords
Mehdi Zaferanieh, Mahmood Sadra and Toktam Basirat
This paper aims to propose a bi-level mixed integer linear location-allocation problem. The upper-level objective function is dedicated to minimizing the total distances covered…
Abstract
Purpose
This paper aims to propose a bi-level mixed integer linear location-allocation problem. The upper-level objective function is dedicated to minimizing the total distances covered by customers to meet the p-selected facilities and the fixed cost values for establishing these facilities. While in the lower level, a customer preference function evaluates the priority of customers in selecting facilities.
Design/methodology/approach
The solution approach to the proposed model uses the Karush–Kuhn–Tucker (KKT) optimality conditions to the lower-level problem where a set of p-selected facilities are introduced as the selection of the upper-level decision maker. The bi-level model reduces to a single-level model with some added binary variables.
Findings
Sensitivity analysis of the proposed bi-level model concerning variations of such different parameters as customers’ preferences and the number of selected facilities have been provided, using some numerical examples. Also, locating a recreational facility in Mazandaran province, Iran, has been provided to evaluate the reliability of the proposed model and efficiency of the solution approach, as well.
Originality/value
To the best of the authors’ knowledge, this paper is original and its findings are not available elsewhere.
Details
Keywords
Akbar Mohebbi, Mostafa Abbaszadeh and Mehdi Dehghan
The purpose of this paper is to show that the meshless method based on radial basis functions (RBFs) collocation method is powerful, suitable and simple for solving one and two…
Abstract
Purpose
The purpose of this paper is to show that the meshless method based on radial basis functions (RBFs) collocation method is powerful, suitable and simple for solving one and two dimensional time fractional telegraph equation.
Design/methodology/approach
In this method the authors first approximate the time fractional derivatives of mentioned equation by two schemes of orders O(τ3−α) and O(τ2−α), 1/2<α<1, then the authors will use the Kansa approach to approximate the spatial derivatives.
Findings
The results of numerical experiments are compared with analytical solution, revealing that the obtained numerical solutions have acceptance accuracy.
Originality/value
The results show that the meshless method based on the RBFs and collocation approach is also suitable for the treatment of the time fractional telegraph equation.
Details
Keywords
Mahdi Salehi, Hossein Tarighi and Haydar Sahebkar
The purpose of this study is to examine high-quality auditors’ conservatism in Iran market based on the classification of Tehran Stock Exchange (TSE) in terms of their reaction to…
Abstract
Purpose
The purpose of this study is to examine high-quality auditors’ conservatism in Iran market based on the classification of Tehran Stock Exchange (TSE) in terms of their reaction to client’s earnings management behavior and their limitations to issue the going concern opinions (GCOs) over an eight-year period from 2009 to 2016.
Design/methodology/approach
The study population consists of 1,376 observations and 172 companies listed on the TSE during the years 2009-2016. Following the prior studies, the authors used the modified Jones model to measure discretionary accruals as a proxy for earnings management.
Findings
The results witnessed a negative relationship between the size of the audit firm and discretionary accruals; besides, the relationship between abnormal accruals and GCO on companies audited by high-quality audit firms is higher than other companies. In other words, firms with GCO, which were audited by the Iranian large auditors, report negative abnormal accruals less than those audited by non-large auditors. In short, in spite of the special features of Iran market because of economic sanctions, this paper extends prior literature clarifying that auditors’ conservatism induces accrual reversals when auditors issue GCOs. One interpretation of this result is that the existence of such association is because of not only auditor conservatism but also financially distressed firms.
Practical implications
The outcomes of this paper will help to fill the knowledge gap related to this issue between developing and developed countries because this investigation exposed more than ever the vital role of the auditor as an observer on the financial statements. Without any exaggeration, this research will make investors and stakeholders aware of this fact that auditor conservatism will be effective in reducing the manipulation of financial reporting and agency problems in emerging markets, particularly those markets facing with economic sanctions like Iran.
Originality/value
Because of Iran’s dire economic situation during the period under consideration, this is one of the most comprehensive research among the countries of the Middle East that surveys the impact of auditor conservatism on accruals and GCO in an emerging market, namely, Iran.
Details
Keywords
Yasser Rezaei Pitenoei, Mehdi Safari Gerayli and Ahmad Abdollahi
The purpose of this study is to investigate the relationship between financial reporting quality and information environment (IE) in firms listed on the Tehran Stock Exchange…
Abstract
Purpose
The purpose of this study is to investigate the relationship between financial reporting quality and information environment (IE) in firms listed on the Tehran Stock Exchange (TSE).
Design/methodology/approach
In this study, composite measures were used as the proxy to measure financial reporting quality and IE. In this regard, a sample of 1,490 firm-year observations of the firms listed on the TSE during the years 2008 to 2017 and a multivariate regression model was used to examine the research hypothesis.
Findings
Findings indicate that financial reporting quality has a positive relationship with firms’ IE. This result is robust to the alternate measure of financial reporting quality and endogeneity problem.
Originality/value
The present study is the first study to develop a composite measure for the firms’ IE in the Iranian capital market. As a result, it not only expands the theoretical literature on the firms’ IE but also helps policymakers, regulators, investors and financial reporting users make informed decisions.
Details
Keywords
Sara Dassouli, Harit Satt, Youssef Chetioui and Mehdi Semahi
This study aims to explore the application of the theory of planned behavior (TPB) in understanding Muslim consumers’ visitation motives to halal hotels. The model tests the…
Abstract
Purpose
This study aims to explore the application of the theory of planned behavior (TPB) in understanding Muslim consumers’ visitation motives to halal hotels. The model tests the impact of additional factors to the TPB such as religious commitment, religious-identification and information seeking behavior on consumers’ attitudes and intentions to visit Halal hotels.
Design/methodology/approach
Survey data was collected from 183 respondents to examine the relationships between these factors and customers’ intention to visit halal hotels. The survey participants were selected from diverse backgrounds to ensure a representative sample. Structural equation modeling was used to assess the conceptual model.
Findings
This study highlights the significance of attitudes shaped by subjective norms and information seeking behavior, emphasizing their influence on consumers’ inclination to visit halal hotels. In addition, the role of religious commitment is examined, shedding light on the impact of individuals’ strong faith in shaping their attitudes and behaviors toward halal hotels.
Originality/value
These results contribute to the existing literature on Halal consumer behavior and provide practical implications for professionals and policymakers in the hospitality industry. Understanding the factors that influence customers’ intentions to visit halal hotels can assist in developing tailored marketing strategies and creating an inclusive environment.
Details
Keywords
S. Sepehr Ghazinoory, Shiva Tatina and Mehdi Goodarzi
Innovation and technology development policy-making naturally encounters numerous uncertainties and complexities, especially in developing countries, for the sake of the…
Abstract
Purpose
Innovation and technology development policy-making naturally encounters numerous uncertainties and complexities, especially in developing countries, for the sake of the prevailing prospect of decision makers focusing on hard evidences, and neglecting key and effective social ones; in this research, a context-based method by means of Q-methodology was designed to facilitate policy-making for complex systems by bridging between policy and practices (latent in viewpoints) through providing context-based evidences.
Design/methodology/approach
Due to the nature of knowledge-based systems, the performance of Innovation and Technology Development (ITD) systems is highly dependent on the standpoints of key players/stakeholders of the system. In consideration of Iran’s economy characteristics, Upstream Oil and Gas (UOG) Industry, which is one of the complex Large Technical Systems (LTS), was selected as a case study. Regarding the features of LTSs, the designed model was completed by adding hierarchical clustering method, as well as using the framework of innovation and technology learning transition model to analyze the results.
Findings
The results showed the capability of the model in providing credible evidences to inform policy-making processes.
Originality/value
This study is one of the first real experiences which used Q-method for providing evidence-based policy-making model in a complex Large Technical System, namely, Upstream Oil and Gas (UOG) Industry.
Details
Keywords
Hassan Dahmardeh, Mahmood Ghanbari and Seyed Mehdi Rakhtala
The purpose of this paper is to develop a combined control (CC) technique based on the direct torque control (DTC) strategy and vector control (VC) method, to improve the overall…
Abstract
Purpose
The purpose of this paper is to develop a combined control (CC) technique based on the direct torque control (DTC) strategy and vector control (VC) method, to improve the overall performance of a three-phase induction machine (TPIM) drives.
Design/methodology/approach
The proposed control scheme includes a table-based DTC strategy in connection with a proportional-integral-sliding mode controller and pulse width modulation switching strategy. The control system has merits of DTC technique such as simple structure, less dependent on machine parameters, fast dynamic response and merits of VC technique such as high accuracy and constant switching frequency.
Findings
To validate the effectiveness of the proposed control system, simulation and experimental studies are carried out for a 0.75 kW TPIM in different operating conditions. The achieved results show the superiority of the proposed method in terms of fast dynamics and simple structure compared to the VC strategy and low speed and torque ripples and constant switching frequency compared to the DTC method.
Originality/value
Compared to the conventional CC strategies, the control law of the proposed method is based on DTC theory and modulation is established based on VC. In other words, the variable switching frequency which is one of the main disadvantages of the conventional CC strategies is rectified using the proposed CC scheme.