Prefatory Note
Tomoki Shiozawa1* and Hiroki Takada2
1School of Business Administration, Aoyama Gakuin University, 4-4-25 Shibuya, Shibuya-ku, Tokyo 150-8366, Japan
2Graduate School of Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan
*E-mail address: shiozawa@busi.aoyama.ac.jp
(Received June 27, 2016; Accepted July 3, 2016)
Abstract. No Abstract