The Designation of Quality and Price based on Vertical Product Differentiation

摘要

Different consumer demands different quality, which determines that existence of different quality of the same product is reasonable. The article uses two-stage game of fully non-perfect information. Through two-stage game analysis, the article concludes that whether new entrants should enter the market is not only related with the fixed cost of entry, the number of consumers and the highest taste of consumers, but also related to the quality choices of incumbents; after entrants enter the market, the choices of quality are decided by the quality choices of incumbents.