Arash Hadizadeh Department of Economics, Qazvin Branch, Islamic Azad University, Qazvin, Iran   , Iran   hadizadeh@qiau.ac.ir   http://qiau.ac.ir/en/hadizadeh.info           JEL Areas: C2 : Single Equation Models; Single Variables: General E3 : Prices, Business Fluctuations, and Cycles: General (includes Measurement and Data)