Toshikatsu Inoue Shiga University   1 Chome-1-1 Banba Hikone, Shiga 522-8522 Japan   toshikatsu-inoue@biwako.shiga-u.ac.jp             JEL Areas: C4 : Econometric and Statistical Methods: Special Topics E3 : Prices, Business Fluctuations, and Cycles: General (includes Measurement and Data)