Short Run and Long Run Effects of Inflation and Government Expenditure on Economic Growth in Iran

This Study Is Going to Explore the Short Run And Long Run Effects of Inflation And Government Expenditure On Economic Growth In Iran By Using ARDL Model And Granger Causality Test During The Period 1358-1389. The results show that there is a long term relationship between Inflation rate، economic growth and government expenditure; it means the government expenditures Has a positive externalities yield in Iran. In the short run and long run، the rate of inflation does not have a Positive effect on the economic growth but government expenditures do So. The causality test results show that there is unidirectional causality between Inflation rate and economic growth، and between economic growth and government Expenditure.