mohsen amini khouzani

Loose coupling theory emerged as a new approach in management to understand organizational structure and processes in the field of organizational studies. The purpose of this article is to review the studies and researches that have dealt with the theory of loose coupling and analysis of communication in organizational structure. This article is supported by highlighting the concepts related to the theory of loose coupling through two main dimensions of a dialectical approach, i.e. distinctiveness and responsiveness, and it tries to provide a better understanding of organizational issues by providing conceptual clarity about the main characteristics of organizational couplings and its operationalization. help. A loosely coupled structure represents organizational elements that can be linked together in such a way that they are responsive, but retain evidence of separateness and identity. Stronger coupling creates stability, control, and efficiency, while looser coupling creates flexibility, adaptation, and innovation. Studies show that the main concepts studied around this perspective include coupling components, coupling types, and coupling forms, which are analyzed according to the dialectical relationship between distinctiveness and responsiveness.

The problem of allocation of financial resources in projects is one of the most important problems of mathematical optimization. Incorrect allocation of financial resources can lead to project failure, increased costs, and reduced profitability. The importance of this issue has led to the modeling of a financial resource allocation problem for sustainable projects under uncertainty in this article. A fuzzy programming method was used to control model parameters and GSSA, GA, and SSA algorithms were used to solve the model. In the mathematical model, the goal was to optimize the objective function consisting of predicted return, investment risk, and project sustainability. Mathematical calculation results showed that meta-heuristic algorithms have high efficiency in achieving optimal solutions in a short time. so that the average time to solve them was less than 10 seconds. Also, the calculation results showed that increasing the uncertainty rate leads to increasing the value of the objective function and creating a distance from the optimal point. This is due to increasing costs and decreasing profits in sustainable projects. Finally, usage the TOPSIS method, the ranking of solving algorithms was done, and the GSSA algorithm was the most efficient algorithm among other algorithms with a desirability weight of 0.846.

Financial structure of companies affects value of assets, stock prices and value of companies through cost of capital and net profit. The importance of this issue has stimulated opportunistic tendencies of managers to use these opportunities and apply fraudulent behaviors to guide financing structure of companies in order to protect interests of certain groups. Also, intervention of some internal and external factors limits or enhances the possibility of taking advantage of such opportunities. The purpose of this study is to explain the role and importance of some of these factors such as managers' distrust, audit quality and political communication in the process of influencing fraudulent behaviors on capital and corporate ownership structure to control the effective factors in this field. The statistical population of companies listed on the Tehran Stock Exchange and period is 2011-2021. The statistical sample of the research includes152companies and the hypotheses are tested using multivariate linear regression model and data analysis by panel method. Findings have shown that in addition to a significant positive relationship between occurrence of fraud with capital and ownership structure, the effects of moderation quality of auditing is negative and the interfering effect of Managers’ Overconfidence is increasingly on the positive relationship. Political relations do not have any moderating effects on the relationship between fraud with financial and ownership structure of companies.The results of this study emphasize the importance of audit quality and Managers’ Overconfidence and their control to manage effects of fraudulent misconduct on financing methods and capital structure of companies.

This scientific research aims to investigate the role of reinforcing or limiting the factors affecting fraud-based behavior in companies with opportunistic tendencies on companies' financial decisions. Opportunistic tendencies provide the context for directing many financial decisions to protect the interests of particular groups. On the other hand, the intervention of some internal and external factors limits the possibility of taking advantage of such opportunities or provides the conditions for their use. Studying the subject of fraud and its effects on financial management is crucial, notably with a systematic approach, implying this study's applied objective. Based on the provided comprehensive model, According to the comprehensive model, the present study is intended to explain the current situation in relation to the role and importance of three categories of trust factors, audit quality and political communication on the process of influencing fraudulent behavior on financial decisions such as profit management, risk management, capital structure and The ownership structure of companies has been discussed with the aim of controlling the effective factors in this field. This research is applied in terms of objective. It draws upon a descriptive and survey methodology. The statistical population contains managers, financial experts, and professionals from companies listed on Tehran Stock Exchange. A sample of 348 individuals was selected, and the collected data was analyzed using Structural Equation Modelling (SEM) and the PLS-Smart software package. Findings suggest that fraud significantly affects financial decisions, demonstrating the significant role of trust in mediating between fraud and financial decisions. The Sobel test confirms this role. The research also confirms that the mediating role of political relations and auditing quality in the relationship between fraud and financial decisions is significant in this model.

This scientific research aims to study the strengthening and limiting role of effective factors on fraudulent behavior of opportunistic companies in order to change the profit and risk management. The purpose of present research is to delineate the role and importance of overconfidence of managers, quality of auditing and political relationships on influencing process of fraudulent behaviors upon risk and profit management of companies in order to control. The effective factors in This regard. The statistical society consists of listed companies in Tehran stock Exchange and statistical sample consists of 152 companies by using financial information of 2011-2021 time period. Hypotheses have been tested by using multivariate linear regression model and data have been analyzed by panel date analysis. findings indicate in addition to significant positive relationship between fraud incident and risk and profit management, political relationship and quality of auditing have negative moderating effects and managerial over confidence results in increasing intervening effect on positive relationship between fraud and risk and profit management..

This study aimed to investigate the influence of cultural factors on the risk power of companies in Iran's stock exchange. The companies surveyed included 178 companies selected by sampling method based on the specified criteria. To estimate the impact of cultural factors on the risk of active companies in the Iranian stock exchange and to analyze the relationships between the variables presented in the model with the use of panel data extracted from the financial statements in the stock exchange and other reports published by both statistical and religious institutions and Cultural was used. In this study, the panel method was used and before that Chow and Housman tests were used to determine the type of test. The results of the study on the effect of cultural factors on the riskiness of the companies active in the stock exchange showed that cultural factors have a significant effect on the standard deviation of the company's returns, the standard deviation of the firm's return on assets and the costs of research and development of the company, and This relationship is negative for all of the three risk aversion factors. In sum, it can be concluded that the promotion of cultural factors in the society influences all three indexes related to the risk appetite of companies in the stock market and thus reduces the risk aversion of these companies.

This study aimed to investigate the influence of socio-cultural factors structure of participation in the stock, according to Securities and Exchange mediator of trust in Iran.
The sample group consisted of 398 samples were selected based on random sampling. For statistical analysis of the correlation coefficient method, hierarchical regression and structural equation modeling (SEM) was used. The results show that although the test variables, socio-cultural factors influence of some variables such as beliefs, participation in stock or reject, such as education, income, and legislation is approved, but by examining the variables of trust, such as optimism, ambiguity aversion and risk aversion and direct and significant impact of these variables on participation in the exchange on the role of influential variables related to socio-cultural factors is stressed. The results of multiple regression analysis correlation and model the role of trust in the relationship between socio-cultural factors contribute to the exchange as a mediator confirmed. In the following through compliance data and conceptual model, structural equation modeling to assess the impact of trust as a mediator was fitted and the Influence of socio-cultural factors by role of mediator Trust on participation in the stock confirmed