We develop a tractable general equilibrium model of oligopolistic competition that allows for endogenous product differentiation and exhibits various forms of competition, ranging from perfect to monopolistic competition, simultaneously. Our unified framework provides a novel way to integrate...

I model multimarket competition when consumers value firm scope across markets. Such competition is surprisingly common - consumers in many industries prefer firms that operate in more geographic and/or product markets. I show that these preferences permit firms of differing scopes to coexist in...

In this essay I would like to apply the new institutional economics to suggest modifications of the theory we employ in economics to make that theory useful for the study of the performance of economies through time. The modifications I shall suggest are in the spirit of Joseph Schumpeter

Contrary to some of the leading critiques of neoclassical theory, I argue that this theoretical framework can incorporate the moral dimension into the modeling of economic agents when the consequences of their choices are not answerable to market forces. Neoclassical theory, broadly defined,...

In this paper, we take a first step toward exploring empirically the product assortment strategies of oligopolistic firms. Our starting point is a discrete-choice demand model for differentiated products. We incorporate the demand model into an equilibrium supply model, in which firms compete by...

The monopolistic competition model is suitable for markets with a large group of relatively small firms. However, it hardly describes oligopoly markets where several multi-national companies dominate the markets and each giant firm produces a large number of products. Such a market structure...

A substantial number of studies have extended the work on universal properties in physical systems to complex networks in social, biological, and technological systems. In this paper, we present a complex networks perspective on interfirm organizational networks by mapping, analyzing and...

This paper shows that bank competition has an intrinsically ambiguous effect on capital accumulation and economic growth. We further demonstrate that banking market structure can be responsible for the emergence of development traps in economies that would otherwise be characterized by unique...

In this paper we show that bank competition has an intrinsically ambiguous impact on capital accumulation. We further show that it is also responsible for the emergence of development traps in economies that otherwise would be characterized by unique equilibria. These results explain the...

Digital markets have raised a number of new competition challenges. Ex-post competition policy appears not to be able to address them in their entirety and with the necessary speed. There is considerable consensus, among academics and policy-makers, that ex-ante regulatory policies are needed to...