Evaluating the welfare aspects of the simple monetary ruls for Iran

Abstract

This paper following a monetary growth rate rule aims to compare the properties of different monetary policy rules in Iran. In that regards, the paper draws on the New Keynesian Dynamic Stochastic General Equilibrium (DSGE) models. Within this framework, we rank the different policy rules based on the Impulse response Functions, the volatility of key macroeconomic variables and the welfare loss function. The paper concludes that the effects of alternative monetary rules depend on what shocks affect the economy, the exchange rate regime, and the choice of inflation index. When the economy experiences productivity shocks, domestic iflation targeting is welfare-superior to other monetary rules. However, in the case of other shocks except productivity shock a managed exchange rate is the best policy rule. Finally, the results of welfare loss of alternative monetary policy rules allowed noticing the nature of the shocks affecting the economy dictate the implication and choice of the best monetary policy rule.

Keywords

• welfare loss
• simple monetary rules
• small open economy