جستجوی مقالات مرتبط با کلیدواژه « ریسک سقوط قیمت سهام » در نشریات گروه « علوم انسانی »

Stock Prices Crash RiskThe of risk the stock price crash, which indicates the possibility of a sharp and sudden drop in price, is affected by the risk of financial distress, and agency costs intensify this relationship. Empirical investigation of this issue is the aim of the present studyTo achieve the goal of the research, the data of 211 corporations active in the Tehran Stock Exchange were selected during a 10-year period from 2012 to 2021, and multivariate linear regression method and mixed data model were used to test the hypothesis. The findings showed that the risk of financial distress (criterion based on market information) does not increase the risk of stock prices crash. .Also the existence of agency costs does not intensify the relationship between the risk of financial distress and risk of stock prices crash. In addition to this test and additional analyzes showed that the risk of financial distress (criterion based on Altman's accounting information) increases the risk of stock prices crash (criterion of negative skewness of stock returns). Investigating the effect of agency costs on the relationship between the risk of financial distress and risk of stock prices crash and measuring the risk of crash with the two criteria of negative skewness of stock returns and downward volatility, the risk of financial distress with the two criteria of Merton and Altman, as well as adjusting the agency costs of each company. With industry average, research innovation is considered

The purpose of this research is to investigate the effect of capital structure determination policy (conservative and non-conservative policy) on the stock price crash risk. The data of 143 companies admitted to Tehran Stock Exchange during the period of 2014-2015 was analyzed using multiple regression with the control of year and industry fixed effects. Conservative capital structure does not have a significant effect on the stock price crash risk. It also highlights the information asymmetry, the relationship between the conservative capital structure and the stock price crash risk; But the life cycle of the company does not have a significant effect on the relationship between the conservative capital structure and the stock price crash risk. Companies with a conservative capital structure are more likely to use suitable investment opportunities on the one hand and reduce opportunistic behavior on the other hand, and are less likely to face the stock price crash risk. This conclusion also applies to Iran's inflationary economy.Innovation: The current study analyzes the determinants of conservative financial policy, it is the first study that examines the impact of conservative capital structure on the stock price crash risk and the role of life cycle adjustment and Information asymmetry deals with the relationship between capital structure management and stock price crash risk and develops the existing literature regarding financial conservatism and its contradictory effect in inflationary economies.

The risk of stock price crash is one of the topics of interest in capital market research. Since the main mission of capital market regulators is to protect the rights of investors, it has always been important to consider the factors that affect crash risk. The quality of financial reporting and earnings management patterns are the most important tools available to regulators that can help them manage crash risk aversion, the purpose of this research is to examine the relationship between real profit management, corporate governance and the risk of stock fall in a company listed on the Tehran Stock Exchange. This research is practical in terms of its purpose, and its statistical sample is 113 companies from among the companies admitted to the Tehran Stock Exchange during the years 2016 to 2021. The research method of the present study is descriptive- correlation and the research hypotheses are tested using the generalized least squares method. The results of the research showed that there is a negative and significant relationship between real earnings management and the risk of falling stocks. Also, the results show that there is a negative and significant relationship between corporate governance and the risk of stock fall. Corporate governance moderates the relationship between earnings management and stock downside risk.

Investors significantly value the risk of falling and consider the risk of falling as an important pricing factor. The negative price changes are also affected by managers' ability to choose strategies and properly implement the company's operations. Therefore, this research investigates the relationship between the company's diversification strategy and the risk of falling stock prices, emphasizing the weakness of operations and management's ability during the year 2016-2022.

The multivariable regression method and the financial information of 129 companies admitted to the Tehran Stock Exchange have been used to test the research hypotheses. The research hypotheses were rejected or proved by applying appropriate statistical methods to generalize the results. The financial data was collected in Excel to form a database and then analyzed using Eviuse software to test the research hypotheses.

The research results showed that according to the first hypothesis, the company's diversification strategy has a negative relationship with the risk of falling stock prices, which is confirmed. Also, the second hypothesis that operational laxity strengthens the negative relationship between diversification strategy and the risk of falling stock prices is not confirmed. And according to the third hypothesis, management ability strengthens the negative relationship between diversification strategy and the risk of falling stock prices, not confirmed.

Originality/Value:

 From the aspect of research innovation, we can mention the following: first, it showed that the diverse operations of companies act as a factor in reducing the risk of their collapse, thereby clarifying a new reason for companies to expand their operational scope. Furthermore, it showed that the effectiveness of diversification is consistent with the evidence provided by the literature on bad news hoarding theory; that is, diversification can reduce the negative effects of bad news. It contributes to the fall risk literature. Such insights open a new avenue for future research to investigate how to reduce the risk of collapse through the strategic design of companies' operations and production. Third, the prevailing consensus among management scholars is that diversification is essential regarding economic performance and risk reduction. The findings of this study enhance the existing understanding of corporate diversification on bankruptcy risk. Fourth, the present study considers a set of contextual factors that moderate primary communication. This analysis provides a detailed look at the possible intervening factors between diversity and fall risk.

The purpose of this study is to investigate the effect of real profit management in increasing the risk of falling stock prices by considering the role of managers' overconfidence. The current research is applied and from the methodological point of view, the correlation is causal type (post-event). The statistical population of the research is all the companies admitted to the Tehran Stock Exchange and using the systematic elimination sampling method, 146 companies were selected as the research sample and were examined in a 6-year period between 1396 and 1401. The results of the research hypotheses test showed that profit management has an effect on the risk of falling stock prices and managers' overconfidence moderates this relationship.

The purpose of this research i The risk of falling stocks is one of the concerns of investors, and increasing the risk of falling stocks causes pessimism among investors in the stock exchange, and this massive behavior leads to the aggravation of market fluctuations, destabilization of markets, and increased fragility of financial systems, The investors in the stock market is to obtain a reasonable return, is obtained from the two parts of stock price changes and dividends, so that investors financial analysts should be able to predict stock prices returns using investment models.

The present research is objective, practical and in terms of nature; It is descriptive and correlational. For this purpose, two hypotheses were formulated and data related to 100 member companies of Tehran Stock Exchange were used for the time period of 1391 to 1399. To test the hypotheses, the multivariate regression technique using the panel data method was used.

There is a positive and significant relationship between the emotional tendency of investors and the risk of falling stock prices, and there is also a positive and significant relationship between the collective behavior of shareholders and the risk of falling stock prices.

the present research is objective, practical and in terms of nature; It is descriptive and correlational. For this purpose, two hypotheses were formulated and data related to 100 member companies of Tehran Stock Exchange were used for the period of 2011 to 2019. To test the hypotheses, the multivariate regression technique using the panel data method has been used.

Originality / Value: 

The results showed that the behavioral biases of investors, including emotional tendency and mass behavior, have led to a decrease in the efficiency of the stock market, as well as a decrease in the rationality of investors' decision-making, which results in an increase in the risk of falling stock Prices.

With the increasing expansion of joint-stock companies and the diversification of their capital structure on the one hand and the emergence of severe financial crises in the macro and micro dimensions on the other hand, the owners and various stakeholders of the companies are trying to create a cover and shield to protect themselves against These are the risks and this issue has led them to use predictive tools and models to evaluate the financial strength of companies. Based on this, the purpose of this research is to investigate the impact of economic uncertainty and the risk of falling stock prices with regard to the role of mediator. be intellectual capital. The current research is practical in terms of its purpose, and in terms of method, it is a causal (post-event) type of research. The statistical population of the research was the companies admitted to the Tehran Stock Exchange, using the method of systematic elimination, 144 companies were selected as the research sample in the period between 1394 and 1401. To test the research hypotheses, logistic regression was used using Eviuse software. The results of the research showed that economic policy uncertainty has a significant effect on the risk of falling stock prices, and intellectual capital has a mediating role on the relationship between economic uncertainty and the risk of falling stock prices. On the other hand, human capital, structural capital and physical capital also have a mediating role on the relationship between economic uncertainty and the risk of falling stock prices.

The relationship between corporate social responsibility disclosure and stock price risk is complex due to regulatory effects, indirect effects, and uncertain effects of some intervening factors. The purpose of this research is to investigate the relationship between social responsibility disclosure and stock price risk, considering the role of the company's performance moderator. The information required for this study is taken from the financial statements of 168 companies in the period 1393-1400. In terms of purpose, the research is part of applied research and the research method is correlational in terms of nature and content, and panel analysis has been used to analyze the hypothesis. The results showed that there is a negative relationship between the disclosure of social responsibility stock price risk; But this relationship is not significant; Also, the company's performance does not affect the relationship between social responsibility disclosure and stock price risk. This negative relationship is consistent with the balance theory, which suggests that companies that actively practice their social responsibility are more likely to disclose more information, increasing transparency and reducing information asymmetry.

The stock price crash risk is one of the main concerns of financial market participants. According to financial theories, Retail investor attention is one of the factors affecting the stock price crash risk. This study investigates the effect of retail- investors' attention based on the GSV index on the stock price crash risk in the Tehran Stock Exchange. Also, considering the moderating role of institutional ownership and the quality of companies 'audits in the relationship between investors' attention and the probability of stock price crashes, the role of these two variables has been investigated in the study. The research period was 2009-2020 and the sample included 164 companies. The study's results using the panel data regression approach indicate that investors' attention in the current period increases the risk of a stock price crash in the subsequent period. Also, there is a negative relationship between institutional shareholders and the stock price crash risk in the next period and there is no relationship between the quality of companies' audits and the stock price crash risk of companies in the next period. Also, institutional ownership and audit quality do not affect the relationship between retail-investor attention and stock crash risk.

With the expansion of the capital market in Iran, it is important to pay attention to the factors that have an effect on the decision-making of market participants and during recent years, stock price crash risk as in affective risks on companies been noted by shareholders and researchers. In this research, the effect of free cash flows on stock crash risk with focused on the role of earnings smoothing was investigated. In internal research, there have been many kinds of research emphasizing the relationship between earnings smoothing and stock price crash risk, but the relationship between cash flows and stock price crash risk is missing in internal research. Also, the moderating role of earnings management on this relationship has not been explained in the Iranian capital market so far. Therefore, based on the research literature in this field, it seems that the issue of the relationship between free cash flows and the stock price crash risk and the explanation of this relationship in the Iranian capital market is significant. The sample includes 161 companies listed on the Tehran Stock Exchange during the years 1394 to 1399. To quantify stock price crash risk, two criteria of negative stock skewness and up-down volatility were used. The results indicate that free cash flows have a positive and significant effect on stock price crash risk and earning smoothing also moderates this relationship negatively and significantly.

Investors and shareholders are two groups that have a special interest in risk and returns information. So, the effect of environmental performance on the risk of stock price crashes is the most important information that is considered by users. The present study examines the impact of companies' environmental performance on the risk of stock price crash with an emphasis on accounting conservatism in the Tehran Stock Exchange. This research is applied in terms of purpose and descriptive-correlational in nature. To achieve the research goal, 109 companies were selected from the companies listed on the Tehran Stock Exchange during the years 1390 to 1398 by systematic elimination sampling method and a total of 981 years of the company was considered for analysis. To study the relationships between variables, multivariate regression was used to fit the logistic regression pattern. Also, the combined data method was used to test the hypotheses. The findings show that environmental performance has a negative and significant effect on the risk of stock price crashes. But accounting conservatism as a moderating variable undermines this relationship

The main purpose of this study is to determine the factors affecting Stock Price Crash Risk in various domestic studies. The sample of this research is taken from the results of 57 internal studies based on meta-analysis approach. The results showed that the variables of conservatism, social trust, debt maturity, dividends, ownership concentration, auditor expertise in the industry and the effectiveness of internal controls had a negative and significant effect on Stock Price Crash based on the negative skewness of stock returns (NCSKEW). Also the variable of trading strategies is the only negative factor affecting Stock Price Crash based down-to-top volatility. Also, the ratio of M/B and size has a negative effect on the risk of falling stock prices based on the maximalist Sigma. On the other hand, information asymmetry, standard deviation of monthly return, investor heterogeneity, stock overvaluation and free cash flows are among the causes of exacerbating Stock Price Crash based on negative skewness of stock returns (NCSKEW). and growth opportunities and accrual items exacerbating Stock Price Crash based on maximalist Sigma.

Comparability is one of the unique qualities of financial information that enhances its usefulness. The ability to compare financial statements as a specific feature of financial reporting quality can reduce managers' motivation to hide negative news. An effective audit committee, on the other hand, limits the opportunistic and biased behavior of managers and delays the identification of profits. Thus, the existence of an effective audit committee can be considered as an effective mechanism to reduce the Stock price crash risk and affect the relationship between the financial statements comparability and Stock price crash risk. Therefore, based on this reasoning, the present study, using the structural equation modeling approach, examines the relationship between financial statements comparability with Stock price crash risk and the moderating effect of the audit committee on this relationship. The statistical sample of the present study consists of 126 companies listed in Tehran Stock Exchange 2012-2018. The findings show that the financial statements comparability reduces Stock price crash risk. In addition, the results show that the audit committee moderates and exacerbates the negative relationship between the financial statements comparability and Stock price crash risk.

This study intends to investigate the role of Religious Months on the relationship between Investor Sentiment and The Risk Of Crashing Stock Prices by emphasizing the role of corporate governance. The specific Religious Months in this study include holy months of Ramadan and Muharram. In this study, variables in corporate governance include The CEO tenure, CEO duality, board independence, board ownership, audit firm size, and institutional investors’ ownership. The research sample consists of 132 companies observed over a period extending from 14/8/1392 in Solar Hijri calendar (SH) (or 1/1/1435 or first of month of Muharram in Islamic calendar (AH)) to 19/6/1397 in Solar Hijri calendar (SH) (or 29/12/1439 or last day in month of Dhu al-Hijjah in Islamic calendar (AH)). In this study, Multivariate Regression Model for panel data was used to analyze the data and test the hypotheses. The research results indicate a significant difference between Investor Sentiment, on one hand, and stock returns on the other hand during Islamic months of Ramadan and Muharram compared to other months. Also, corporate governance was found to have a significant impact on the relationship between investor sentiment and stock returns. In other words, in case of companies with higher corporate governance levels, investor sentiment tends to have a more favorable impact on stock returns.

Customer relationship management encourages firms to attract and retain majority customers for future corporate transactions. However, greater dependency on majority customers results in certain risks for firms. As such, the present study is concerned with investigating the effect of customer concentration on the corporate stock price crash risk. in doing so, two measures of negative skewness of stock returns and bottom-up volatility are employed to compute stock price crash risk, and  Herfindahl-Hirschman Index serves to calculate customer concentration. The research hypothesis is built on a sample of 96  firms listed on the Tehran Stock Exchange during the years 2016-2020 and tested using multivariate regression model based on panel data. The results suggest that higher customer concentration results in the enhancement of stock price crash risk. moreover, the results of sensitivity analysis reveal that using an alternative proxy to measure customer concentration fails to exert any significant influence on the research results, thereby confirming the robustness of the findings.

This study aims to investigate how and to what extent stock price crash risk is affected by various factors and tries to design a model to predict this relationship in the Tehran Stock Exchange. Accordingly, Besides reviewing the literature on stock price crash risk, 12 experts were selected from the statistical population of the capital market for the qualitative part using the theoretical sampling method and the gradual selection rule. Once the data were collected by referencing documents and interviews, the target model was extracted by MAXQDA18 software. The systematic random sampling was used to select 100 companies from a statistical sample of listed companies on the Tehran Stock Exchange over 2009-2019 to test the research hypothesis. Then, a quantitative model derived through the qualitative method was tested as structural equations using the PLS software.The results indicate that it is possible to achieve a model for predicting the stock price crash risk using a mixed (qualitative and quantitative) approach and providing a method to assess its fitness accuracy. and respectively the seven variables obtained from the qualitative part; Financial variables, business strategies, managerial ability and information asymmetry as internal factors and macroeconomic variables, political relations and social responsibility as external factors affect the stock price crash risk.

Maintaining and protecting the interests of shareholders is considered as one of the main pillars of each capital market, which, while increasing the level of financial transparency, reduces stock crash risk. Under these circumstances, companies are always trying to strengthen shareholders 'trust and confidence by enhancing the level of protection of shareholders' rights through effective ways such as raising the level of incentives for managers, while reducing the cost of representation. The purpose of this research is Investigating the Effectiveness of Operant Conditioning Behavior Theory on the Effect of Investor protection on stock crash risk in Companies listed in the Tehran Stock Exchange. In this study, 96 companies were surveyed during the period 2014 to 2018. In this research, in order to measure Investor protection of rights, the criteria used such as the quality of accounting information, the effectiveness of internal controls, the voting rights of shareholders, the index of ownership concentration and corporate governance index based on the multi-criteria decision making model by topsis and weight method entropy. Also, for measuring the stock crash risk, two criteria for negative stock skewness (NCSKEW) and (DUVOL) were used. To assess the behavior of the behavior of the actor (stimulus-response), we used the competitive motivation of managers using the managers' compensation gap. The results of the research showed that Investor protection of rights has a negative and significant effect on the stock crash risk. It was also found that competitive incentives negatively impacted the Investor protection of rights on stock crash risk.

Since the Sudden changes in stock prices are unusual and usually negative which occurs in the absence of important economic events Therefore, it has always been considered. The purpose of this study is to investigate the effect of stock price crash risk on the future strength of the CEO. Accordingly, 103 companies during the period 2015 to 2019 have been surveyed. The results of reviewing the data collected during the period showed that the risk of crash in stock prices does not have a significant effect on the future strength of the CEO. As mentioned in the theoretical literature of stock prices’ crash, several factors can lead to this phenomenon, and management performance alone is not a sufficient condition to create conditions for crashing stock prices. For instance, according to the stock price bubble theory, stock price changes occur due to a shock without any proper and economic justification, and in fact cognitive errors that affect human psychology can affect investors' judgments in stock valuation and pricing. According to this, it seems that the crash in stock prices in the period under study was formed for reasons beyond the control of management and less managerial factors have been effective in crashing stock prices. Hence, the reduction of the CEO's power in this situation is unexpected. This finding provides new evidence in support of behavioral finance theory in stating that the CEO's future power is not affected by crashing stock prices.

The present study examines the impact of corporate governance on the stock crash risk of companies. Although in previous studies several indicators have been used to measure corporate governance, the present study using multi-criteria decision model to combine numerous individual metrics (one-dimensional) available in accounting and financial literature with the help of experts' opinions and their weighting, and by using mathematical modeling provides a Composite measures of corporate governance and then tests its impact on companies' stock crash. The research hypothesis was tested using a sample consisting of 125 companies listed on the Tehran Stock Exchange during the years 2015 to 2019 and using a multivariate regression model based on combined data technique. The results show that there is a negative and significant relationship between corporate governance and the stock crash risk. Also, the results of the sensitivity analysis test indicate that the use of alternative criteria to measure the stock crash risk does not affect the main results of the study and the research results are strong enough. The research findings, while filling the gap of previous studies on providing a Composite mathematical model for measuring corporate governance, can be a guide for capital market legislators, investors and other users of accounting information in making decision.

purpose of this study is to investigate the relationship between asset growth and the future stock price crash risk concerning the moderating effects of agency problems and accounting conservatism. Method To test The the research hypotheses, 102 companies were examined among the companies listed on the Tehran Stock Exchange between 2010 to 2019. To test the research hypotheses, a multivariate regression model and panel data have been used. The results indicate that the growth of assets has a positive and significant effect on the future stock price crash risk. The findings also showed that the agency problem increases the impact of asset growth on the future stock price crash risk. In addition, accounting conservatism has no significant effect on the relationship between asset growth and the future stock price crash risk.