Optimal Monetary and Fiscal Policies for a Non-Inflationary Exit from Stagnation in Iran: A DSGE Approach

The purpose of this paper is to investigate the optimal monetary and fiscal policies with emphasis on a non-inflationary exit from economic stagnation in Iran. In the first stage, Iran’s economy has been modeled in the form of a New Keynesian Dynamic Stochastic General Equilibrium model (NK-DSGE). After modeling and extracting the system of equations, the structural parameters of the model have been estimated by using seasonal data from 1989 to 2016 and also the Bayesian approach. The results show that monetary and fiscal expansionary policies increase production though they are associated with inflation. In the second stage, the optimal monetary and fiscal rules have been extracted from a social loss function, and accordingly the conditions of a non-inflationary exit from stagnation have been investigated. The results of the simulation show that the optimal monetary policy cannot by itself lead to the exit of the economy from stagnation without inflation. However, if this policy is applied along with an optimal fiscal policy, a non-inflationary exit from economic stagnation can be achieved.