معرفت اقتصاد اسلامی

In the history of economic thought, the issues related to the rate of interest, have been among the most disputable economic issues. The economists have offered different views in this field, meanwhile, the investigation of the interaction between the rate of interest and economic growth is of a special position. The paper's hypothesis is that, there is a negative relationship between the rate of time preference and the rate of economic growth and consequently between interest rate and growth rate. To test this theory, first we offer a mathematical model for evaluating the relationship between these two variables. To continue, we investigate the relationship between the interest and growth rates in Iran's economy during 1351-1386 using Lisrel (linear structural relations) software. In this survey, facilities rate of profit has been considered as a substitute of interest rate between 1362-1368 years. Meanwhile confirming the research’s theory, the findings of the research show that, the rate of time preference and consequently, the rare of interest, during the investigated period has a negative effect on the economic growth.