Po-chuan Liao Feng Chia University   No.100, Wenhwa Road, Seatwen District Taichung City, 40724 Taiwan   d0147215@gmail.com             JEL Areas: E3 : Prices, Business Fluctuations, and Cycles: General (includes Measurement and Data) E6 : Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General