作者: Karel Hrazdil , Kim Trottier , Ray Zhang
DOI: 10.1080/00036846.2014.892200
关键词: Industry classification 、 Standard Industrial Classification 、 Capital market 、 Global Industry Classification Standard 、 Economics 、 North American Industry Classification System 、 Industrial organization 、 Classification scheme
摘要: … First, for each of the 12 variables, we consider each industry classification scheme to be effective if the intra-industry homogeneity increases significantly with finer industry …