@article{oai:tsukuba.repo.nii.ac.jp:00015058, 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 = {L37--L77}, title = {極大化モデルと情報入手の効果 : 新しいアプローチ}, volume = {28}, year = {1992} }