2024-03-29T11:43:49Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/304742019-04-25T01:09:18Zhdl_2115_30436hdl_2115_5303hdl_2115_123Optimum Tariffs in Vertical Product DifferentiationOno, Hiroshi330FACULTY OF ECONOMICS Hokkaido UniversityDepartmental Bulletin Paperapplication/pdfhttp://hdl.handle.net/2115/30474https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/30474/1/21_P25-46.pdf0916-4650AA10772967ECONOMIC JOURNAL OF HOKKAIDO UNIVERSITY2125461992engpublisher