The model of perfect competition is one of the most famous, most important, and most misunderstood concepts in economics. Rather than aiming to be a full-blown model of real-world competitive markets, the perfect competition model isolates the decentralized coordination mechanism inherent in all...

We consider a large rational expectations economy built on Han and Yang (2013) where traders can share information with each other via an information network and investigate the impact of network connectedness on market equilibrium outcomes. We find that in the equilibrium with endogenous...

Perfectly competitive market is often used in economics textbook as an idealized model for understanding microeconomics issue. But, is it realisable in practice, and crucially, under what kind of scenario and condition? The answer is: perfectly competitive market does not exist in most market...

The primary predictions of strategic-trade theory are not restricted to imperfectly-competitive markets. Indeed, these predictions emerge in a natural three-country extension of the traditional theory of trade policy in competitive markets, once the theory is augmented to allow for...

I demonstrate a straightforward but apparently widely unrecognized implication of the standard requirements for perfect competition: an economy in which consumers can choose to learn is generally not perfectly competitive. In particular, if endogenous welfare relevant learning is feasible, the...

This paper mainly studies two topics: linear complementarity problems for modeling electricity market equilibria and optimization under uncertainty. We consider both perfectly competitive and Nash-Cournot models of electricity markets and study their robustifications using strict robustness and...

The quality of public management is a recurrent concern in many countries. Calls to attract the economy's best and brightest managers to the public sector abound. This paper studies self-selection into managerial and non-managerial positions in the public and private sector, using a model of a...

This paper is based on the model of backward linkages from foreign direct investment (FDI) Lin/Saggi (2003), where the market structure of the final goods sector is represented by a monopoly or Cournot oligopoly, and the supplier sector - by a pure monopoly. We extend this model by examining...