List of Articles exchange.

• Open Access Article
  • Abstract Page
  • Full-Text
  
  1 - Comparison of Traditional DEA Approaches to Portfolio Selection by a New Proposed Algorithm with a Case Study of Stock Selection in Tehran Stock Exchange
   
  Abstract Portfolio selection is one of the most important areas in financial decision-making; A portfolio of stocks that could bring the highest rate of return and the lowest risk investment for its owner simultaneously. However in choosing the most prefered portfolio More

  Abstract Portfolio selection is one of the most important areas in financial decision-making; A portfolio of stocks that could bring the highest rate of return and the lowest risk investment for its owner simultaneously. However in choosing the most prefered portfolio just these factors are not decisive and according to the economic environment, many factors can affect this process which should be employed. Therefore, these diversity of factors, bring to the limelight the importance of multi-criteria decision-making approaches. Data Envelopment Analysis (DEA) is one of this approaches. The main purpose of this paper is comparing the traditional DEA approaches to a new proposed algorithm. In traditional approaches simply assumed that return to scale is constant or variable. This simplification may cause large errors. In the new algorithm by analyzing the behavior of return to scale, appropriate model will be used. As a case study, the models have been solved with real data belonging to Tehran stock exchange and the results have been analyzed. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  2 - Study of selected macroeconomic variables from the perspective of moral hazard and financial constraints on return and capital structure in listed companies
  Masoumeh  Ebrahimi hosein panahian Hassan  Ghodrati mohsen rasolian
  The purpose of this paper is to examine the selected macroeconomic variables from the perspective of moral hazard and financial constraints on the return and capital structure in listed companies in addition to macroeconomic variables, the present study seeks to investi More

  The purpose of this paper is to examine the selected macroeconomic variables from the perspective of moral hazard and financial constraints on the return and capital structure in listed companies in addition to macroeconomic variables, the present study seeks to investigate and explain ethical risks and inappropriate choices in the capital market and the role of ethics in reducing it. This research is qualitative / quantitative. A number of stock exchange experts have been selected as sample respondents to the interview questions, and among the issues that determine the direction of this research and interview questions, the literature on selected macroeconomic variables, financial constraints and its effect on returns and capital structure and actors. Companies listed on the Tehran Stock Exchange. To analyze the opinions of experts, first from the grounded theory method to identify indicators, from the fuzzy Delphi method and structural equations to evaluate selected macroeconomic variables, financial constraints and its effect on return and capital structure and capital companies and activists listed on the Tehran Stock Exchange The fuzzy dimtel method was used to prioritize the indicators and monitor the factors, and the structural equations were used to examine the relationships between the variables. In the research, we also intend to show that following ethical principles and developing ethical guidelines and creating a culture for the governance of ethical values can be very effective in reducing the risks of financial markets and creating transparency, reducing the cost of supervision and enforcing laws. Also guarantee. Findings showed that financial constraints affect the severity of the impact of economic output gap on capital structure, stock returns, company size and moral hazard on stock returns. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  3 - Investigating The Relationship Between Lease And To Put Decision In Iranian Law
  Mehdi  Hamzeh Hoveida Kourosh  Bayat
  There has been a lot of research on rent and forgery, but little research has been done on the relationship between rent and forgery, so research in this case is necessary. Therefore, the purpose of this study is to investigate the relationship between rent and forgery More

  There has been a lot of research on rent and forgery, but little research has been done on the relationship between rent and forgery, so research in this case is necessary. Therefore, the purpose of this study is to investigate the relationship between rent and forgery with respect to According to jurists, these results have been achieved through the library collection method. Lease is considered as a contract, while there are disagreements about the to put of the contract, which according to the definition of the contract in the civil law, forgery is also considered as a contract and the to put and agent are committed to do a series of things. The important difference between a lease contract and a to put contract is that a lease contract is necessary, but a forgery contract is permissible, and also in some rulings such as determining the agent and the action and the duration and exchange of the conditions of validity are different. Although the lease contract is different from the to put contract, but they are similar in other respects as well, such as being a covenant, being in exchange, being a trustee, and so on. Manuscript profile