@article{oai:tsukuba.repo.nii.ac.jp:00023625, author = {酒井, 泰弘 and Sakai, Yasuhiro}, journal = {筑波大学経済学論集, The University of Tsukuba economic review}, month = {Aug}, pages = {1--29}, title = {不完全情報、逆選抜および道徳的危険 : 簡単なモデル分析}, volume = {6}, year = {1980} }