Recent developments in the global economy have resulted in a reassessment and clarification of some economic concepts. One of the changes in economic and financial theories is the great importance of the relationship between the real sector and the financial sector in the economy. After the global financial crisis of 2007, the impact of monetary and fiscal policies on the real sector has been controversial. Accordingly, the present study seeks to investigate the impact of economic growth on monetary and fiscal policies in Iran's economy over the period 1990-2018, taking into account the stress in the financial sector. The results show that the response of economic growth to fiscal policy stimulus does not depend on the state of financial sector stress. Yet, the implementation of this policy is more effective than monetary policy, and also leads to lower volatilities in economic growth.

Keywords: Fiscal Policy, Monetary Policy, Financial Stress Index, Threshold Vector Autoregression Model.