Evaluation of Monetary Instability effects on Output and Inflation during Business Cycles in Iran’s Economy

Monetary instability and investigating its effects on other macroeconomic indicators is so significant for making economical policies in all countries. An effort has been made in this study to evaluate the monetary instability in Iran’s economy during recession and expansion periods in a dynamic equation system format in Friedman's theory framework about GDP and inflation fluctuations. The period that has been determined for this survey is based on seasonal data from first quarter in 1370 to fourth quarter in 1396. The results show that monetary expansion in both recession and expansion period is more effective in creating inflationary condition than influencing output. Considering the identification of technology structure relevance as an important parameter in the production process which plays an important role in business cycle, a controversial result which is gained shows that technological shock led to increase price level and inflation in Iran’s economy. Finally, it can be expressed that Friedman’s hypothesis can not be confirmed during expansion period in Iran’s economy.