مطالب مرتبط با کلیدواژه

Corporate Governance


۱.

Toward An E-business Governance Model Based on GRC Concept(مقاله علمی وزارت علوم)

تعداد بازدید : ۴۵۰ تعداد دانلود : ۳۵۱
E-business Governance is the decision-making framework within which decisions about relationship, accountability, compliance, direction, and control in e-business activities are made. This structure make the e-commerce organization manage itself more effectively and prevent failure that take place by having not adequate attention to governing elements, risk of e-business, dynamic of standards, and rules. In this research by using literature review and interviews with experts, a questionnaire was designed and by analyzing the gathered data through surveys, the e-business key success factors such as e-business enablers, corporate and IT governance, the best practices, management and strategy were extracted. Then these key factors were presented as the e-business governance models. The results of statistical analysis confirm that the model might be helpful in handling the process of e-business in Iran.
۲.

Relationship between Stock Liquidity and Risk of Default in Iran’s Petrochemical Industry and Oil Products Companies: The Roles of Stock Liquidity in Information Efficiency and Corporate Governance(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Liquidity Bankruptcy Default risk Information efficiency Corporate Governance

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تعداد بازدید : ۵۰۲ تعداد دانلود : ۲۸۴
The main purpose of this research is to explain why and how the stock liquidity affects the default risk of petrochemical and petroleum products companies listed in Tehran Stock Exchange. The study used experimental data and parametric tests in order to estimate the relationship between stock liquidity and default risk through information efficiency and corporate governance roles of stock liquidity. The present research is applied in terms of purpose and is a descriptive-correlative study. All data required regarding the stock liquidity, price, trading volume and days, stockholder ownerships, etc., were extracted from Rahavard Novin database software. To investigate the relationship between variables, the multivariate regression analysis model using OLS method was applied in Eviews platform. The empirical findings showed that there is a significantly negative relationship between stock liquidity and default risk of petrochemical and petroleum product companies listed in TSE and also stock liquidity can affect the default risk through reducing the information asymmetry in the stock pricing process and strengthen the corporate governance. These results could provide visible signals based on the realities of the market in order to improve models to assess and predict the risk of default and lead managers and decision makers of suppliers, customers, partners and stakeholders, to conclude more flexible contracts with petrochemical and petroleum products companies and ultimately better mitigate business risks.
۳.

The Effects of Corporate Governance on Banks’ Performance (Evidence from of Indian Banks)(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Corporate Governance Bank Performance Indian Banks

حوزه‌های تخصصی:
تعداد بازدید : ۵۵۴ تعداد دانلود : ۲۵۷
The aim of this study was an investigation of the effect of corporate governance on banks’ performance evidence from Indian Banks. This study tested a hypothesis according to the three levels of a model with three groups including the overall, public, and private sectors. This hypothesis focused on the relationship between different variables of the three levels in the new model of bank performance. But, based on the literature review and the basic model, the authors of the present study divided the three main hypotheses into 9 sub hypotheses. The results indicated that the relationship between corporate governance index and dimensions supported the general hypothesis, but at the level of components, all variables did not affect the dependent variable (performance) so that some variables in this level were deleted from the regression equation table. All variables in this study had a positive impact on banks’ performance and the Beta column indicated the coefficient of their impact on banks’ performance in three groups.  JEL Classification: G34, P17, G21
۴.

Designing a Good Corporate Governance Model in the Context of Ethics and Rationality(مقاله علمی وزارت علوم)

تعداد بازدید : ۴۳۸ تعداد دانلود : ۳۰۰
Background: Corporate governance is one of the most important business issues that depends on business ethics and rationality. Therefore, in this research, the model of corporate governance in the context of ethics and rationality was designed . Method: The present study was qualitative and based on the grounded theory. The study population consisted of faculty members and PhD students, experts and specialists, and managers and staff of Tehran Water and Sewerage Company who have a good view in the field of corporate governance. 24 people from the population by sampling method Snowballs were selected as the sample until they reached theoretical saturation. The analysis tool was a semi-structured interview and finally the data were analyzed by triple coding method (open, axial and selective) in MAXQDA software. Results: A total of 1032 significant phrases were identified in the interviews, from which 99 codes were extracted and classified into 29 main concepts, and with the axial coding method, they were placed in a suitable position and formed the research model . Conclusion: If this model of corporate governance is applied in the context of ethics and rationality, it can create consequences such as improving the operational performance of the organization, improving business ethics, trust and value creation for shareholders, etc. for the organization and stakeholders .
۵.

Corporate Governance and Iranian Banking Economic Value Added(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Corporate Governance Age Economic Value Added GMM Method

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تعداد بازدید : ۳۹۱ تعداد دانلود : ۳۴۶
Added over the period 2006-2018. We focused on different proxies of corporate governance indicators, such as the Directors' Effectiveness, the Transparency and the Disclosure, Responsibility. Basel Principles have been used to make corporate governance indicators and Stern & Stewart and Chew (1995) method have been used to make banking economic value added. We used the PCA method to choose important indicators. The results of PCA estimation identified ten important variables affecting banks' economic value added. Due to the importance of banks' age in creating economic value-added, banks are divided into two classes according to age. The GMM method is used to estimate the models. Eight models were designed to examine the impact of different corporate governance measures on the banking economic value added. The results indicated that corporate governance indicators were significant in explaining changes in the Iranian banking economic value added. The result also shows that according to the banks' age, the effectiveness of the board structure is greater than others. This illustrates the importance of board structure more than other criteria.
۶.

An Appropriate Corporate Governance Model at Iran Insurance Company(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Good Governance Corporate Governance thematic analysis Iran Insurance Company Smart Pls

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تعداد بازدید : ۴۴۰ تعداد دانلود : ۳۴۸
Insurance Corporate Governance Code 93 was communicated to the insurance industry of Iran in 2017. However, as the only Iranian governmental insurance organization, Iran Insurance Company has a different corporate governance structure in the insurance industry of Iran. The present study aims to propose a good corporate governance model at Iran Insurance Company. This study is applied research in terms of objectives and descriptive-survey research based on a combined methodology in terms of data collection. Semi-structured interviews were performed with fifteen experts. The final model was proposed through thematic analysis and the Delphi model with five components, including board effectiveness, transparency and disclosure, ownership institution, beneficiary management, and monitoring. The model was examined by delivering questionnaires to a total of 201 senior and middle-level managers and agency directors at Iran Insurance Company. The Kolmogorov–Smirnov test was utilized to determine data distribution, while the Kaiser-Meyer-Olkin (KMO) test and Bartlett’s test were used to examine measurement sample suitability. Also, the partial least square (PLS) method was employed for modeling in Smart PLS. The components were ranked through the Shannon entropy approach. The results demonstrated that board effectiveness had the largest importance among other components. The board structure and composition showed the highest weight. Among the components of board effectiveness, the separation of the chairman and CEO had the highest importance.
۷.

Ranking of Banks’ Risk Reporting Using Data Envelopment Analysis(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Critical discourse analysis Data Envelopment Analysis Risk Reporting Board of Directors Report Corporate Governance

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تعداد بازدید : ۳۸۹ تعداد دانلود : ۲۴۱
The present study aimed to rank banks in terms of board of directors report and notifying the users of reports. In addition, we evaluated factors affecting risk disclosure from the perspective of corporate governance. Moreover, we assessed risk disclosure based on linguistic analysis of board report text and capital adequacy ratio. Words were applied as measurement units to measure risk disclosure. The advantage of this technique is the unique analysis of words. According to the theoretical foundations presented in the present study, we first identified risk disclosure words in reports provided to financial information users and divided them into two categories of positive and negative risk disclosure words. Another variable selected for risk disclosure was capital adequacy ratio. Effective variables in corporate governance system in banks included the board independence, duality of CEO duties, and major shareholders as input variables in data envelopment analysis (DEA) model. On the other hand, the BCC model of DEA was selected as output-based nature. The statistical population included all banks listed in Tehran Stock Exchange. In total, 20 year-bank units listed during 2016-2017 were assessed. In the end, seven year-bank units were considered efficient while the rest were inefficient. Moreover, we estimated the amount of shortage in outputs to reach inefficient banks to the desired level of efficiency.
۸.

Bank’s Corporate Governance: Quantifying the Effects in Iranian Banking Networks(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Corporate Governance Quantification Iranian Banking Network Financial Ratios

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تعداد بازدید : ۴۶۷ تعداد دانلود : ۲۴۴
The most important tool for promoting the bank’s stability and health is the establishment of a standard corporate governance structure for managing the bank's business. Redesigning the relationships between bank management, shareholders and the rest of the bank’s stockholder, including the objectives, the risk and audit indices, and internal control of the bank, is recognized as the foundation of corporate governance. Good corporate governance in a bank increases productivity reduces financial risk and enhances systemic sustainability. Bad corporate governance increases the likelihood of a bank's bankruptcy and creates risks that are likely to contagion the entire banking network. In this paper, considering the importance of the corporate governance in the banking network, and issuing Central Bank circular in 2016, we will review corporate governance requirements, as well as quantify its effective indicators. To determine the corporate governance structure, we have introduced and quantified several important indicators about the board structure, internal control, and auditing of the banks. The period for the analysis of corporate governance in the banking network by indicators is 2011 to 2017. This information is extracted from financial statements or through the official website of the bank network. The results confirm that good corporate governance affects financial statement and precautionary ratios in banks.
۹.

Investigating the Relationship between Corporate Governance Model and Its Performance in Iranian Banks(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Corporate Governance model Banking Performance

حوزه‌های تخصصی:
تعداد بازدید : ۵۱۰ تعداد دانلود : ۴۳۵
Corporate Governance debates raised seriously in scandals and financial crisis of recent decades in large companies and banks. The focus of this debate is not merely the corporate governance system, and its main function is to preserve the interests of stakeholders. At the macro level, economic efficiency, sustainable growth and financial stability are important effects of the system. Establishing an efficient corporate governance system in the banking system and evaluating and ranking them requires a comprehensive model that encompasses all the internal and external mechanisms affecting corporate governance and localized indices and relevant international principles. In this research, corporate governance in banks has been evaluated via a model developed in the framework of systematic thinking which includes three dimensions 1) Inputs (structures and inputs), 2) Roles and processes, and 3) Outputs (goals, performance and results of them). The main objectives of this study are to evaluate the compliance status of 27 banks with the indicators of corporate governance model and their efficiency and effectiveness, as well as to examine the correlation between the components of corporate governance within the system including inputs, processes and outputs. According to the results, 47.8% of the qualitative indicators are covered in the current situation of the banks of the country, but there is a significant gap between the full compliance with the model. Based on the results in the performance sector, private banks scored the highest and state banks scored the lowest. The results of evaluating the correlation between the components of corporate governance model showed that there is a positive and significant relationship between the dimensions of inputs and processes with the goals, results and performance of banks. Accordingly, by improving the status of input indicators and the corporate governance model process, the status of target indicators, results and performance of banks will also improve
۱۰.

Corporate Governance and Credit Risk in the Iranian Banking Industry(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Banking Industry Credit risk Corporate Governance Tehran Stock Exchange

حوزه‌های تخصصی:
تعداد بازدید : ۳۵۵ تعداد دانلود : ۳۲۱
The primary purpose of this research is to investigate the impacts of corporate governance on credit risk in the Iranian banking industry. The sample consists of 20 banks listed on the Tehran Stock Exchange during 2011-2016, using panel data. In this research, credit risk and corporate governance are the dependent and independent variables, respectively. The meta-synthesis method was used for compiling a checklist of corporate governance indicators. Then, the content analysis method was applied for measuring the corporate governance index; i.e., the number of dimensions disclosed on the total number of disclosable dimensions. The results indicate that after adjusting the control variables namely the size, the financial leverage, the ratio of capital adequacy, the GDP and inflation, there is a significant negative relationship between corporate governance quality and the credit risk, which means more effective corporate governance will reduce information asymmetry, increases the clarity and stakeholder confidence, and finally reduces banks’ credit risk. Accordingly, the final recommendation is to reduce credit risk by improving the mechanisms of corporate governance in the Iranian banking industry.
۱۱.

The Impact of Corporate Governance on Earnings Management in Palestine: The Moderating Effects of Political Instability(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Corporate Governance political instability Earnings Management Board of directors Audit committee Palestine

حوزه‌های تخصصی:
تعداد بازدید : ۴۳۹ تعداد دانلود : ۱۸۳
The purpose of this paper is to investigate the role of political instability in the context of the association between board of directors (BOD) and audit committee (AC) quality as indicators of corporate governance effectiveness and earnings management (EM). The non-financial listed companies on the Palestine Exchange (PEX) between the period from 2011 to 2018 were the samples of the study. Based on the OLS regression results by using a panel data of 232 observations, the findings show that the BOD quality is positively related to EM, while AC quality is negatively associated with EM. The results also reveal that political instability plays a moderating role by weakening the relationship between the AC quality and EM during the severe unstable political situation, while the BOD quality is negatively associated with EM under the same situation. This finding implies that the BODs might substitute ACs under severe political instabilities to protect the stockholders and stakeholders’ interests. Unlike most previous studies, this article addresses political instability as a moderating variable for the relationship between the BOD and AC quality as a composite measure of EM in the most emerging and smallest stock market in the region. The results of this work may assist the regulatory bodies, policymakers, and practitioners in revising the corporate governance code to promote the efficiency of the BOD and AC monitoring functions for the purpose to improve the faithfulness and reliability of financial reports and also to deter the management from engaging in critical levels of EM.
۱۲.

Relationship between Corporate Governance and Risk Management(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Corporate Governance Risk Management Bank Size GMM

حوزه‌های تخصصی:
تعداد بازدید : ۳۱۷ تعداد دانلود : ۲۶۵
Corporate governance of banks is one of the most important structures required by banks to maintain the health and stability of banks, which can play an important role in managing banks' risk. This paper examines the effect of corporate governance on liquidity risk management, credit risk management, and total bank risk management. We used board structure effectiveness, transparency, and responsibility as corporate governance indicators. The financial ratio approach is also used to measure risk management. The period under review was 2006-2018. In addition to corporate governance criteria, other explanatory variables affecting banks' risk management have also been used. This paper used the performing unit root, cointegration, and F-Limmer tests to ensure panel estimation. Given the impact of past banks' risk management on current risk management, this variable has also been modeled as an explanatory variable. For this reason, the GMM method has been used to estimate the models in question. Given the importance of bank size in corporate governance on bank risk management, Banks are divided into large and small groups, so the effect of corporate governance in large and small banks has also been investigated on bank risk management. The results show that compliance with corporate governance criteria positively affects banks' risk management. However, due to weak corporate governance in large banks, corporate governance in large banks hurts bank risk management.
۱۳.

Effect of Corporate Governance on Banking Failure(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Corporate Governance Banking Failure Logestic model

حوزه‌های تخصصی:
تعداد بازدید : ۵۸۵ تعداد دانلود : ۲۴۳
We analyse the roles of bank Directors’ Effectiveness, Transparency and the Dis-closure, Responsibility and total corporate governance indicator in bank failures during 2006-2019, using Logistic model and Kaplan-Meier method. This study completes other studies to make composite banking failure indicator. Good corpo-rate governance indicator was made. That it is one if corporate governance indica-tors for each bank are more than mean of sample and otherwise, it is zero. Forth we estimate the survival model according corporate governance indicators. Our results suggest that failures are strongly influenced by Corporate governance indicators. High Directors’ Effectiveness, Responsibility and total corporate governance indicator decrease failure risk significantly. In contrast Transparency and the Disclosure increase failure risk. These findings suggest that banks with more transparency are less survival than others. In contrast Responsibility has most effect on survival banks. There are positive relationship between bank size, inflation and banking failure and negative relationship between economic growth and banking failure indicator.
۱۴.

Identification and Refinement of Effective Factors of Financial Reporting Transparency of Firms Listed on Iran Stock Exchange(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Reporting Transparency ANP analytic network process Corporate Governance Financial analysis Financial performance

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تعداد بازدید : ۲۷۴ تعداد دانلود : ۲۶۵
This study aimed to identify effective factors of financial reporting transparency (FRT) of companies using knowledge analysis and selected the final effective factors from them using the ANP analytic network process. In this regard, 16 professors and pundits in financial and reporting areas were selected as the experts. Then, these factors were assessed, refined, and categorized in three survey stages using Delphi method. First, 20 factors were extracted from the literature review based on the knowledge and content analysis: institutional ownership, independence of the board of directors, the lack of ownership concentration, size of the board of directors, information quality, information accuracy, profit fluctuation, sales margin, return on assets, return on investment, asset turnover, company value, competition, age of company, size of company, technology, current ratio, quick ratio, cash flow and asset liquidity. Further, the identified factors were categorized, assessed and refined based on the survey results from the experts’ opinions using Delphi and ANP analytic network process methods. Results showed following 10 out of 20 factors, identified using the content and knowledge analysis, as the effective factors of FRT: institutional ownership and independence of the board of directors (corporate governance mechanisms), information accuracy and profit fluctuation (financial analysis), return on assets and return on investment (financial performance), competition and age of company (environment), and cash flow and asset liquidity (liquidity).
۱۵.

To Study The Effect of Investor Protection on Future Stock Price Crash Risk(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Investor protection Future Stock Price Crash Risk Corporate Governance

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تعداد بازدید : ۷۱۸ تعداد دانلود : ۲۱۷
Managers are responsible for providing financial statements and they might try to make a good picture of their firm's conditions. Therefore, they try to delay the disclosure of bad news and release the good news as soon as possible. The ten-dency of managers toward hiding bad news increases the stock price crash risk. The protection of investor is one of the factors that can prevent from falling stock price, because it restricts the managers and majority shareholders in frauding and hiding bad news. Thus, the main purpose of the present research is to study the effect of investor protection on future stock price crash risk. In this research, 89 companies from listed companies in Tehran Stock Exchange during 2011-2017 were tested. The results obtained from the research's hypothesis test showed that protecting the rights of investors has a negative effect on the stock price crash risk. In fact it can be concluded that with the increase of the investor protection, the firms are obligated to disclose the high-quality accounting information and present more transparent financial reporting, as a result, the information asym-metry will be reduced and by creating a flow of information between the manag-ers and the investors and thus failure to accumulate bad news in the company, the risk of the stock price crash will be also reduced.
۱۶.

A Mathematical Model for Measuring Corporate Governance using Multi-Criteria Decision Making (MCDM)Technique(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Corporate Governance Comprehensive index for corporate Governance Multi-criteria decision model

حوزه‌های تخصصی:
تعداد بازدید : ۲۲۸ تعداد دانلود : ۱۷۹
There has not been presented any comprehensive index for Corporate Governance in spite of its crucial role in resolution and responsiveness. Although diverse methods have been sought for measuring the Corporate Governance in the previous studies, in this study, a comprehensive index is proposed for measuring Corporate Governance taking other indexes into account through mathematical equations. For testing the designed model’s functionality, a set of data related to 149 firms from 2014 to 2019 has been used jointly, too. To do so, a questionnaire, which asks the experts their idea about the weight and significance of the criteria of measuring the Corporate Governance of the firm, is made and distributed and the weight and significance of the criteria were determined through one method of multi-criteria decision model (Shannon Entropy). To measure the changeable hidden relationship which exists in this study of the Corporate Governance, provided with the measurement items, a confirmatory factorial analysis was taken, too; results show that the supposed model has been a proper index for Corporate Governance. This mixed index includes criteria such as the board of directors' size, independence, meetings, and its education, the CEO's permanence, the size, independence, financial specialty, financial experience, tenure and the meetings of the auditors hip committee, ownership concentration, organizational ownership, governmental ownership, deals with the dependent persons, the quality of the disclosure, proper information and weaknesses if the internal controls,
۱۷.

Using A Multivariate Statistical Method of Factor Analysis and Grounded Theory to Review the Theory of Agency in Developing Countries (A Case Study of Iran)(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Agency Theory Corporate Governance Reward Risk Aversion Supervision

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تعداد بازدید : ۲۳۲ تعداد دانلود : ۲۰۶
The asymmetry of information between managers and shareholders significantly affects the company's investment decisions and exacerbates the problems of agency. It seems that these problems in developing markets such as Iran are more than developed markets. This research is an exploratory study, and it aims at reviewing the theory of agency in Iran. In the present study, based on the research paradigm, first, data acquisition strategy is selected based on a qualitative approach, and then qualitative study and analysis, quantitative approach, and factor analysis approach have been used to confirm the validity of the extracted model. Statistical analysis of research data shows that among the hypotheses of agency theory, risk aversion, supervision, and reward are revised dimensions in Iran like examples of developing countries.The results confirm the existence of assumptions; 1. Conflict of interests of manager and owner, 2. Information asymmetry, 3. Reverse choice, 4. Ethical risk, 5. Maximizing the expected utility, 6. Forcing and 7. Failure to confirm the assumption is the ability to predict the future and receive information. due to the existence of information asymmetry, higher investment risks of minority shareholders and transparency problems, the lack of ability to predict the future and receive information is necessarily confirmed.
۱۸.

Presenting the Corporate Governance Model of Holdings Financed Through the Internal Capital Market with a Theoretical Approach of Stakeholders(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Internal Capital Market stakeholder theory holding companies Corporate Governance Social Corporate Responsibility

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تعداد بازدید : ۱۵۰ تعداد دانلود : ۱۳۶
Holding companies collect funds from subsidiaries and allocate them to important areas (Internal Capital Market). Managers of holding companies have the ability to transfer funds between subsidiaries. Some specific orientations cause the non-optimal allocation of financial resources. One of the concerns of investors is investing in companies where transparency is fully implemented. Companies are trying to achieve this by implementing corporate governance mechanisms. In this research, using a systematic review method, the dimensions of corporate governance were extracted with the stakeholder theory approach. Finally, in order to examine the question of whether the managers of holding companies consider the interests of all stakeholders when using the internal capital market or not, according to the assumptions of the research, the dimensions of corporate governance on stakeholders have been investigated. To investigate this relationship, a set of questions based on Likert scale about the measured variables of the target society was designed. After data collection, finally, data analysis was done by statistical method using SPSS software and structural equations using SPLS software, and the results of path analysis and causal relationships between the research variables were interpreted in the conceptual model. The data analysis also showed that the value of the path coefficient, the effects of dimensions and components of corporate governance and stakeholders, is a positive value. The null hypothesis of the research is rejected and the opposite hypothesis is confirmed. This shows that there is a relationship between the effects of corporate governance dimensions and stakeholders. The direct effect value indicates a strong and high effect size. As a result, the interests of all stakeholders should be considered.
۱۹.

تأثیر سازوکارهای حاکمیت شرکتی بر تعامل میان هزینه های نمایندگی و کارایی اطلاعاتی قیمت سهام شرکت های بورس اوراق بهادار تهران(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Agency costs Information efficiency Stock Price Corporate Governance هزینه های نمایندگی کارایی اطلاعاتی قیمت سهام حاکمیت شرکتی

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تعداد بازدید : ۸۴ تعداد دانلود : ۱۱۱
هدف این پژوهش، بررسی تأثیر سازوکارهای حاکمیت شرکتی (شامل تخصص مالی و استقلال هیئت مدیره، وجود حسابرس داخلی و میزان سهامداران نهادی) بر تعامل میان هزینه های نمایندگی و کارایی اطلاعاتی قیمت سهام شرکت های بورس اوراق بهادار تهران است. این پژوهش از حیث روش شناسی پژوهشی کاربردی، توصیفی از نوع همبستگی، پس رویدادی، و نیمه تجربی است. جامعه آماری پژوهش شامل کلیه شرکت های پذیرفته شده در بورس اوراق بهادار تهران، و نمونه آماری پژوهش شامل 130شرکت در بازه زمانی 1394 تا 1400 می باشد. در این پژوهش از داده های آرشیوی گذشته برای آزمون فرضیه های پژوهش بهره گرفته شده است. روش تحلیل داده ها نیز روش داده های پنلی و رویکرد مدل های لاجیت رتبه ای است. یافته های پژوهش بیانگر آن است که هزینه نمایندگی، که از طریق تعامل بین فرصت های رشد و جریان های نقدی آزاد اندازه گیری می شود، تأثیر منفی و معنی داری بر کارایی اطلاعاتی قیمت سهام، که با سرعت تعدیل قیمت سهام شرکت های بورس اوراق بهادار تهران سنجش می شود، دارد. همچنین نتایج نقش تعدیل کنندگی سهامدارن نهادی را بر رابطه مذکور تأیید نموده ولی نقش حسابرسان داخلی، تخصص مالی و استقلال هیئت مدیره را تأیید نمی نماید. نتایج این پژوهش، نشان داد که فرصت های رشد و جریان های نقدی آزاد شرکت ها از مهمترین متغیرهای موثر بر کارایی اطلاعاتی قیمت سهام در بورس اوراق بهادار ایران به شمار می آیند.
۲۰.

Information Asymmetry with Emphasis on the Role of Financial and Managerial Criteria Based on Fuzzy Logic and Artificial Neural Networks(مقاله علمی وزارت علوم)

کلیدواژه‌ها: information asymmetry Corporate Profit Forecasting Corporate Governance Capital market Capital Return

حوزه‌های تخصصی:
تعداد بازدید : ۵۲ تعداد دانلود : ۳۸
This paper addresses the absence of a suitable criterion for measuring information asymmetry between managers forecasting earnings and analysts forecasting earnings through statistical methods. Besides, this paper aims to provide a model of information asymmetry, emphasizing the role of financial and managerial criteria. This is applied qualitative and quantitative research (mixed method). The library method is used to prepare and formulate theoretical bases. In addition, the field method is used for collecting data to measure and identify indices and modeling. Factor analysis was used to analyze the data, following identifying the dimensions and variables of financial and managerial criteria of information symmetry to eliminate extraneous factors and classify. The following five main dimensions were determined, including corporate profit forecast, corporate governance, capital market, capital return, and management characteristics of the company. Then, the modeling was done using fuzzy mathematics through triangular numbers, Mamdani implication, and center of gravity methods. The final results of the study of the company listed on the Tehran Stock Exchange show that the level of information symmetry in the range of zero to 100 equals 55.1, to predict the company's profit is 48.54; corporate governance is 56.95; the capital market is 1/59; capital return is 61.07, and managerial characteristics of the company are 67.84. Finally, we examined the factors affecting the information asymmetry obtained from fuzzy neural networks. The findings show a higher prediction accuracy of fuzzy neural network methods than other related prediction methods.