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Zahra Mila Elmi

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Faculty of Economics and Administrative Sciences
Address:
Phone: 09112153929

Research

Title
An Estimation of Seasonal GDP Gap in Iran: Application of Adaptive Least Squares Method
Type
JournalPaper
Keywords
Adaptive Least Squares, Iran, Output Gap, seasonal data.
Year
2013
Journal Iranian Economic Review
DOI
Researchers Arash Hadizadeh ، َAhmad Jafari Samimi ، Zahra Mila Elmi

Abstract

this paper estimates the long-term trend of seasonal real GDP in Iran, using a new econometric technique called Adaptive Least Squares (ALS). ALS is a special case of Kalman Filter that allows a time-varying parameter model to be estimated relatively easy. The estimated trend is used to proxy the output gap. Since the coefficients of the GDP lags are significantly different from zero, the model with intercept and trend and with three lags of the dependent variable has been tested in this article. The comparison of the results of ALS, OLS, HP and Kalman Filter show that the ALS method provides a better estimate. Therefore, it is suggested that the output gap estimation method provided in this paper be used in dealing with the monetary policies. Keywords: