Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "Amaya, Kenichi",Multi-Agent Moral Hazard with Approach Choices,Kagawa University economic review,03893030,香川大学経済学会,2013-06-01,86,1,29-44,https://cir.nii.ac.jp/crid/1050569247289554560,