شکیبایی شکیبایی؛ نظام آبادی پور نظام آبادی پور؛ حسینی حسینی
چکیده
Most oligopolistic models in the oil market begin with the assumption that OPEC is a cartel. Successive increases in oil prices during recent years, and OPEC’s inability to regularize the oil market fortifies the possibility of the existence of competitive behavior in the oil market. Now, with regard to the intense fluctuations in the oil market, prediction of oil supply for politicians and oil companies is important. In the recent years, use of neural networks, along with econometrical methods, of forecasting of economic variables is a norm. Because neural networks have, exclusive characteristics ...
بیشتر
Most oligopolistic models in the oil market begin with the assumption that OPEC is a cartel. Successive increases in oil prices during recent years, and OPEC’s inability to regularize the oil market fortifies the possibility of the existence of competitive behavior in the oil market. Now, with regard to the intense fluctuations in the oil market, prediction of oil supply for politicians and oil companies is important. In the recent years, use of neural networks, along with econometrical methods, of forecasting of economic variables is a norm. Because neural networks have, exclusive characteristics like release of statistical hypotheses and capability of solving complex nonlinear problems. In this article in addition to prediction oil supply in the eleven producing countries, by use of linear regression and neural networks, the results of every country are separately compared. The estimation results show that neural networks are presenting better predictions in comparison to the linear regression models.
دلالی اصفهانی دلالی اصفهانی؛ بخشی دستجردی بخشی دستجردی؛ حسینی حسینی
چکیده
In this study, the rate of time preference as the most important origin of interest is studied. It is firstly examined from the view point of its determinants and then the affected factors from time preference will be considered. Results show that the most important affected variable is saving rate, so that the higher the rate of time preference is the lower the optimal saving rate. This can be explained by the fact that the high the time preference the more distance one takes in his allocation choice from rational norm. We also claim that time preference can not provided enough bases for existent ...
بیشتر
In this study, the rate of time preference as the most important origin of interest is studied. It is firstly examined from the view point of its determinants and then the affected factors from time preference will be considered. Results show that the most important affected variable is saving rate, so that the higher the rate of time preference is the lower the optimal saving rate. This can be explained by the fact that the high the time preference the more distance one takes in his allocation choice from rational norm. We also claim that time preference can not provided enough bases for existent of market rate of interest. This variable have been examined for Iranian economy with Structural Equations, Multiple Indicator Multiple Indicator Cause model (MIMIC) for period of 1351-81. The results also show that increase in time preference rate decreases private investment intensively.
حسینی حسینی؛ taghi هومن
چکیده
The present article presents a comparative study of the international macro economy indicators of ECO member countries in the process of integration. In the age of globalization and the integration of world economy, economic development is not just a national issue; and the states have to avail themselves of existing regional and international resources and opportunities to achieve a desired level of national development. How to benefit from regional and international resources is one of the most significant questions facing all states, particularly developing countries including ECO members. Having ...
بیشتر
The present article presents a comparative study of the international macro economy indicators of ECO member countries in the process of integration. In the age of globalization and the integration of world economy, economic development is not just a national issue; and the states have to avail themselves of existing regional and international resources and opportunities to achieve a desired level of national development. How to benefit from regional and international resources is one of the most significant questions facing all states, particularly developing countries including ECO members. Having such potentialities has resulted in a growing interest in the regional economic integration during the previous decades. Nowadays, almost all countries take part in some kind of RTA in its various stages of development and many countries enjoy the membership of a handful of RTAصs, It is reported that nearly 60% of international trade flows within these arrangements. Having substantial potential, most ECO countries have also been long pushing for the establishment of regional economy and trade, These efforts imply an interest on the side of ECO countries: however, despite these efforts, no commensurate progress has been made. As the ECO itself, during five decades since its inception, has not made a significant breakthrough.
