First Author:   Takanori Adachi Nagoya University adachi.t@soec.nagoya-u.ac.jp   School of Economics, Nagoya University, 1 Furo, Chikusa Nagoya, 464-8601, Japan       http://www.soec.nagoya-u.ac.jp/~adachi.t/ Second Author: Takeshi Ebina Shinshu University ebina@shinshu-u.ac.jp   3-1-1 Asahi Matsumoto, 390-8621, Japan       https://sites.google.com/site/ebinatakeshi2010/