@article{oai:nagoya.repo.nii.ac.jp:00008572, author = {江口, 友朗 and EGUCHI, Tomoaki}, issue = {1}, journal = {経済科学}, month = {Jun}, note = {This paper mainly addresses the concept of 'actor' in four famous institutional approaches since 1970s. Especially, two ones, Such as 'Modern Institutional School' and 'French Régulation School' are showing an alternative vision or new aspects of actor that is based on other academic contributions, for instance, some significant discoveries of mechanisms of our consideration process in cognitive science, or the concept of 'Habitus' which is named by a famous sociologist, P. Bourdieu. Therefore, we have to clarify a meaning of this challenge to methodological individualism and the tradition in economics by focusing on differences to some institutional approaches that take similar hypothesizes with 'Rational Choice Theory' that is one of major thoughts in mainstream analyses. Then, as a result of discussion, two conclusions are showed: (1)Even in a given institution, continuous relationships or networks among heterogeneous actors give us the most important logic to describe various kinds of actions or to do institutions as a mean of social order. (2)We might be able to open the door to deal with more socio-economic phenomena or new analytical objects by constructing enhanced analytical framework that is based on enriched descriptions of actor's networks and relationships in institutions.}, pages = {67--76}, title = {今日の制度アプローチにおけるアクターについて―その理論的な役割と方法論的背景}, volume = {56}, year = {2008} }