With the development of product development technology and the rapid rise of online retailing, the market competition becomes increasingly fierce. Based on consumer utility function, this article established a two-stage dynamic pricing model and discussed pricing strategies under consumer behavior and market competition. Findings indicate that product quality difference and consumer valuation d...

This paper presents an oligopoly model of multiproduct firms in which firms are endowed with possibly different marginal cost and product quality, and choose product ranges before product market competition. Consistent with empirical evidence on a positive relationship between firm size and product diversification, the analysis suggests that firms with higher quality-cost margins typically have...

This paper analyzes the effect of market concentration and product differentiation on the observed outcomes of competition among oligopolists. The empirical framework is designed to examine whether competition is less intense in markets with equal levels of concentration, but more differentiation among the products offered. A two-stage estimation procedure is proposed to address the endogeneity...

We study the effect of product market competition on the alignment of incentives between management and shareholders in public U.S. firms. We find that competition reduces agency conflicts. Firms in less competitive industries are less efficient than firms in more competitive industries and the Sarbanes Oxley regulation, aimed at mitigating agency conflicts, improved efficiency mainly in the le...

We study price competition in the presence of search costs and product differentiation. The limit cases of the model are the ‘‘Bertrand Paradox,’’ the ‘‘Diamond Paradox,’’ and Chamberlinian monopolistic competition. Market prices rise with search costs and decrease with the number of firms. Prices may initially fall with the degree of product differentiation because more diversity leads to more...

I present a model where firms and workers set wages above the market-clearing level. Unemployment is thus generated by their exercise of market power. Because both the labor and product markets are imperfectly competitive, market power in the labor market interacts with market power in the product market. This interaction sheds new light on the effects of policy interventions on unemployment an...

We examine price competition under product-specific network effects, in a duopoly where the products are differentiated horizontally and vertically. When consumers’ expectations are not affected by prices, firms may share the market equally, or one firm (possibly even the low-quality one) may capture the entire market. When product qualities are different, we may also have interior asymmetric e...