Bovenberg and Mooij (1994) and others pointed out that the optimal taxation on goods with external diseconomy both collects revenue and also corrects the external diseconomy by the goods, and thus it is said that the tax has gdouble dividendsh. The purpose of the present paper is to examine...

The aim of this study is to investigate how network effects affect the quality and price decisions of firms in a vertically differentiated market. As network effects increase, high-quality producers tend to raise quality while low-quality producers lower it. The degree of product differentiation...

Chinese Abstract:...

Chinese Abstract:...