درخت حوزه‌های تخصصی

Herding behavior is typically described as the inclination of investors to follow the actions of others in their investment decisions. Herding represents a behavioral tendency in which investors rely on collective rather than private information. Herd literature shows that return jumps can serve as a representation of information arrival, leading to significant price changes. This proposition is introduced due to its potential impact on investor sentiment, assuming greater awareness among other investors as a factor related to the occurrence of herding. Furthermore, it is believed that, in conditions of negative market returns, market participants are more inclined to mimic the behavior of others due to the stress induced by the risk incurred. In the background of previous research, evidence indicates the occurrence of herd behavior on days with return jumps and negative returns. In this study, we investigated herding behavior and its asymmetry through the utilization of return jumps, employing the CSAD method. Under circumstances in which there were no occurrences of return jumps and without taking into account negative market returns, our research was unable to verify the existence of herding at the market level. Nevertheless, when return jumps and negative market returns were present, the occurrence of herd behavior was proven, and the asymmetry of herd behavior was also verified.

Southeast Asian countries have always been the focus of oil producers due to the increase in population and the trend of economic growth. In the last two decades, Indonesia has been prioritized as one of the new markets for Iran due to its high population and forecast to become the fifth largest economy in the world and the upward trend of energy demand. The purpose of this research is to investigate the capacities of Indonesia using the documentary library research method. Indonesia is a developing country and has an increasing economic and population growth trend, which is facing an increasing demand for energy. For this reason, this market is always the focus of major oil producers.The results of this research show that the refinery capacity of Indonesia's need for petroleum products in the form of joint venture or take-off method to create a sales chain in this country can increase its dependence on Iran. And as a result, more market share can be obtained and also the joint investment cooperation in the upstream development sector with Indonesian oil companies in the direction of developing its fields is also significant. The first question in this research is “what are the capacities of joint cooperation with Indonesia in the field of oil industry”, and the second question is “what are the capacities of joint cooperation between Iran and Indonesia in the field of oil industry?”

The present study aims to investigate the mediating role of reflective identity in the relationship between neuroeconomics and entrepreneurial decision-making . The research method is applied in terms of purpose and descriptive survey based on structural equation modeling in terms of nature and procedure. A questionnaire was used to collect field data. The face and content validity of the questionnaire was confirmed by experts and the construct validity was calculated using confirmatory factor analysis. The reliability of the research tools was calculated using Cranach’s alpha test and a composite reliability higher than 0.7 was achieved, which reveals the appropriate validity of the research tools. The statistical population of the research consists of 110 entrepreneurs based in the Science and Technology Park of Zahedan. Morgan's table was applied to determine the sample size, and 86 individuals were selected as the statistical sample by using simple randomization. For analyzing the research data and answering the research hypotheses, SPSS23 and Smart PLS software and the structural equation modeling test were used. The research findings indicated that reflective identity has a mediating role in the relationship between neuroeconomics and entrepreneurial decision-making of the entrepreneurs based in the Zahedan Science and Technology Park. It should be mentioned that a better understanding of the issues pertaining to the upcoming choices for entrepreneurs will lead to better decisions. Therefore, this understanding of the neural basis of decision-making can lead to entrepreneurial decision-making in a special way, which often includes risky choices under conditions of uncertainty.

Objective: Due to globalization, its economic impacts, and the capacity of family businesses to create socio-emotional value on an international scale, this study aims to establish a comprehensive theoretical framework for the internationalization of family businesses.Methods: Using a mixed-methods approach, 1,727 articles from the Web of Science database were identified over a decade, and 42 relevant theories were systematically reviewed. A subsequent narrative review further examines these theories in the context of family business internationalization.Results: These theories are categorized through two approaches: first, a multidisciplinary approach, which includes general management theories, internationalization theories, and family business-specific frameworks; and second, an interdisciplinary approach, organizing these theories within the framework of theoretical evolution. This evolutionary process starts with theory building, continues with theory development, and concludes with theory testing.Conclusions: The primary contribution of this study is the identification of core assumptions within each theory related to family business internationalization. Additionally, by extracting key concepts based on content correlation, this research presents a conceptual model that enhances understanding of the theoretical framework and highlights gaps in the evolution of these theories. These findings provide a valuable foundation for future research in the dynamic and evolving field of family business internationalization.

In the present study, the role of quantitative easing on the stability of financial markets in Iran has been analyzed from the quarterly data of 2006-2021 using the econometric model with vector error correction model (VECM). To estimate the model from some observable variables, the effects of quantitative easing on financial market variables, including (liquidity volume, capital adequacy rate, credits granted to the private sector by banks, bank deposit interest rate, stock market index and exchange rate) were estimated. The data was extracted from the official website of the Securities and Exchange Organization and the Central Bank. In VECM models, the estimation was done in both short-term and long-term periods with the aid of Eviews software. The findings of the research, based on the estimation of long-term and short-term relationships, show that quantitative easing has a positive and significant effect on the stability of financial markets. With the MP1 index increasing by one percent, the Financial Market Stability Index increased by 4.157 percent.

In this article, the impact of various factors such as whether the company is public or private, certificate of clearance and the company's income on the paying tax situation by 57 large companies in the Sistan and Baluchistan province, has been investigated. Since the dependent variable of tax collection is a binary variable, probit and logit models have been used to estimate the coefficients. The results of using two models show that all three explanatory variables have a positive and significant effect on tax payment by companies. And the biggest effect is related to the certificate of clearance, state of the company, and company's income, respectively. Examining the final effects also shows that as the company's income increases, the probability of paying its taxes has decreased and this is because the company with a larger income pays taxes on time and better because of the fear of the consequences of not paying taxes and also knowing with the rules of paying taxes. Therefore, with the increase in income, the probability of paying the company tax also increases less. The Hosmer-Lemshow statistic also indicates that the models fit well and the model is consistent with the data. It is suggested that the laws be amended in such a way that it is necessary for the companies to complete the accounts so that the government can collect taxes from more companies through this law. and limit the way of tax evasion.