درخت حوزه‌های تخصصی

 The importance of community's health followed by the consideration of endogenous growth models has led to an increase in health expenditure of countries to speed up economic growth and development. This has made the efficiency of health production function to an essential issue especially in developing countries. Based upon this, the present study with employing the stochastic frontier analysis method looks for identifying the main determinants such as economic ( children immunization and age dependency ratio ) , environmental ( the rule of law ) and social ( globalization ) conditions on technical inefficiency of health production function between member countries of Organization of the Islamic Conference (OIC) in the period of 1998-2007. The empirical results show increasing the efficiency of health production through improvement in economic and environmental condition. But the increase in socialization globalization such as social factor has led to a decrease in technical efficiency that may be due to the lack of appropriate culture of using new technologies and modern social relations affected by the process of globalization in such countries.       JEL Classification: C12 C23 I12 I19    

This paper investigates the design of an efficient model so as to anticipate the basic economic market rate of returns. To do so, accepting the relationships, interactions and effectiveness of these markets and exploiting Comonotonic Functions under Probability Function Framework as well as using weekly data for ten years’ period of time(2008-2017) in Iran’s economy we design optimum model and test its capability and estimation power. The results illustrate the efficiency of the achieved model. Furthermore, taking the practical nature of this paper into account, we come up with optimum lag of time and the period of time required to achieve equilibrium in any market and the entire economy as a prototype in the frame of Stock Exchange.

The main objective of this study is to investigate the relationship between monetary policies, capital structure and risk-taking of listed banks in Tehran Stock Exchange. In this study, to measure the monetary policies, the indicator of legal reserve rate have been used. The sample consists of 21 banks listed in Tehran Stock Exchange in the period from 2012 to 2018. In this study, the data were extracted from the Rahavard Novin 3 software and then classified by Excel software, and after calculating the variables, finally, through Eviews10 software, the multivariable regression model and panel data was used to test the hypotheses. The results showed that there is significant negative relationship between monetary policies and banks' risk-taking with in 95% confidence level. In addition, other findings indicated existence of a significant positive relationship between monetary policies and bank capital structure. However, the research results show that there is no significant relationship between bank capital structure and banks' risk-taking.

This study tries to identify the structure of global date market under the concentration indices. The results made by indices of   and  show that during the period of 1990 to 2009, their values increased from 1292 to 1466 and from 63 to 67, respectively. It reflects that the inequality intensity of market distribution has grown while the number of exporters is expanded at this time. So, it can be concluded that the new exporters who have entered to the market had a small share and didn't have an ability to reduce the distribution of market share of major exporters. The degree of competition (term CQ) in the market has declined from 37 percent in 1990 to 33 percent in 2009. Based on these indicators, it can be deduced that the policies adopted by the major countries of the market have been in such a way that they have maintained their dominant position and have reduced the share of competitors. The findings also indicate that the global market concentration has no significant effect on Iran-date foreign exchange earnings while exchange rate, production, and price have a significant impact on the foreign earnings.  JEL Classification: F12, D43, F16.

This study aimed to develop Oil approaches affected by effective factors for the success of economy-based entrepreneurship in the Oil Industry. In other words, efforts were made to identify and prioritize the factors affecting the development of Oil approaches under the impact of effective factors for the success of economy-based entrepreneurship in the Oil Industry. A review of the previous studies in this field revealed that the factors affecting the development of Oil approaches affected by factors involved in the success of economy-based entrepreneurship in the Oil Industry were institutional, organizational, environmental, economic, technological and opportunity recognition criteria. The present research was applied in terms of goal and survey, cross-sectional regarding data collection method and time frame. The statistical population consisted of experts in the country’s oil industry system. In total, 16 individuals were selected from the central bank managers by purpose sampling. Data were collected using an expert questionnaire, and the fuzzy Delphi method was applied to ensure the validity of the identified indicators. In addition, the reliability of paired comparisons was assessed by calculating the incompatibility rates via the Gogus and Butcher method. In this regard, reliability was acceptable in all cases of less than 0.1. The ranking of key criteria showed that economic factors had of the highest importance, followed by institutional, environmental, organizational, opportunity recognition process, and technological factors.