Chou, Chien-fuChien-fuChouShy, OzOzShy2010-06-122018-06-282010-06-122018-06-281990http://ntur.lib.ntu.edu.tw//handle/246246/185582772639 bytesapplication/pdfen-USNetwork effects without network externalitiesjournal articlehttp://ntur.lib.ntu.edu.tw/bitstream/246246/185582/1/06.pdf