| Summary: | 碩士 === 東海大學 === 國際經營與貿易學系 === 104 === This paper according to the study of Buehler & Schmutzler(2008)and Garella & Lambertini(2012)basis model and use of modified Cournot model to imitate two upstream firms and two downstream firms. In the vertically integrated downstream firms implement research innovation to increase the degree of product differentiation, under non-vertical upstream firms implement process innovation to cost down like R&D process. In additional the model add market factor, consumer preference factor. The results show: in vertically integrated downstream firms price, output, profit etc. all more than the non-vertical upstream firms results.
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