We show that a market involving a handful of large-scale firms and a myriad of small-scale firms may give rise to different types of market structure, ranging from monopoly or oligopoly to monopolistic competition through new types of market structure. In particular, we find conditions under...

We develop a two-sector model of monopolistic competition with a differentiated intermediate good and variable elasticity of technological substitution. This setting proves to be well-suited to studying the nature and origins of external increasing returns. We disentangle two sources of scale...

In the standard Krugman (1979) non-CES trade model, several asymmetric countries typically lose from increasing trade costs. However, all countries transiently benefit from such increase at the moment of closing trade, under almost-prohibitive trade costs (i.e., near autarky, which is possible...

The paper considers a two-country trade model of monopolistic competition featuring the heterogeneity of consumer preferences both within and across countries. The incorporation of heterogeneity into a traditional monopolistic competition setting is achieved by assuming different elasticities of...

This paper studies the e¤ects of consumer income heterogeneity on monopolistically competitive product markets and individual welfare in the context of non-homothetic preferences. When expenditure of richer individuals is less sensitive to price change compared to poorer ones, a mean-preserving...

We propose a general model of monopolistic competition which encompasses existing models while being flexible enough to take into account new demand and competition features. Even though preferences need not be additive and/or homothetic, the market outcome is still driven by the sole variable...

We provide a selective survey of what has been accomplished under the heading of monopolistic competition in industrial organization and other economic fields. Among other things, we argue that monopolistic competition is a market structure in its own right, which encompasses a much broader...

We show that a wide class of demand systems for differentiated products, such as those generated by additive preferences, indirectly additive preferences, and Kimball-like homothetic preferences, can be given a multinomial logit foundation provided that the conditional indirect utility is...

Theatrical productions are perishable goods, since the tickets for a particular play cannot be inventoried and sold after the time of the play. In the revenue management of a perishable good, price discrimination is widely used. Since the theatre audience is heterogeneous in terms of visit...