@article{oai:tsukuba.repo.nii.ac.jp:00023633, 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 = {Oct}, pages = {39--64}, title = {不確実性と競争保険市場 : 簡単なモデル分析}, volume = {4}, year = {1979} }