New Keynesian

This paper examines monetary and fiscal policy through the estimation of a New-Keynesian dynamic general equilibrium model for Iran’s economy. In this New-Keynesian dynamic general equilibrium model, the consumers encounter the liquidity constraint and the firms face sticky prices, while they are changing them. In the model presented, a role is considered for both government spending and taxation, besides the monetary rule. Then, the model is estimated using Iran's data over the period of 2002-2017, through the method of generalized moments which leads into valuable insight. The results indicate that aggregate demand reacts to changes in interest rates. When inflation occurs, regardless of its source, it is persistent and inertia.The monetary policy has a forward-looking behavior. The output gap with a lag has a negative effect on government spending and the short-term impact of the output gap on government spending is smaller than its impact on taxation (Tax responses to the output gap are stronger and positive).

Oil price shocks are the major source of economic instability in oil exporting developing countries, including Iran. In this paper a Multi Sector Dynamic Stochastic General Equilibrium model, with emphasis on optimization of oil sector as a producing sector is designed. Furthermore, an optimizing import sector is introduced into the model by considering the price rigidity in imported goods as a source of inefficiency in a New Keynesian open economy. The impact of oil price shocks on the dynamics of the economic variables is considered during 1988:1-2011:1. For this purpose, the Bayesian approach is used to estimate the model. The impulse response functions show that immediately after an oil price shock, output increases in the oil sector, while in the non-oil sector the result is reverse. Furthermore, GDP, consumption and inflation increase, while the employment and real exchange rate decreases immediately and finally, all the variables converge to their steady state values. JEL Classification: C61, D50, E12, Q43