Estimating Real Exchange Rate Deviation from Equilibrium Value in Iran, using Smooth Transition Regression (in Persian)

Zahra Azizi () and Ebrahim Hadian ()
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Zahra Azizi: Iran
Ebrahim Hadian: Iran

The Journal of Planning and Budgeting (٠صلنامه برنامه ریزی و بودجه), 2012, vol. 17, issue 1, 7-27

Abstract: Real exchange rate disequilibrium may prove destructive to economy of countries. Thus, controlling exchange rates deviation from has always been one of the vital goals of governments. The first step in controlling this variable would be to know the equilibrium value of the real exchange rate. Linear regression models are employed in most researches where real exchange rate equilibrium value is estimated. Yet considering a non-linear adjustment process in the exchange rate, it would be misleading to use the linear models for estimating equilibrium values. In this way, the present article uses seasonal data 1994:2-2008:1 in a non-linear regression framework so as to estimate real exchange rate equilibrium relationship, while rejecting the linearity model hypothesis and affirming the presence of a non-symmetrical process in exchange rate threshold adjustment, the researchers employ Logistic Smooth Transfer Regression (LSTR) in order to estimate real exchange equilibrium model that is estimated a Newton-Raphson algorithm and conditional maximum likelihood function. In the end, the amount of exchange rate deviation from equilibrium level is mentioned for each period.

Keywords: Iran\'s Economy; Real Exchange Rate Deviation; Smooth Transfer Regression (search for similar items in EconPapers)
Date: 2012
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