This is an entry produced for the Handbook of the History of Economic Analysis, edited by Gilbert Faccarello and Heinz D. Kurz. Cheltenham, UK and Northampton, MA, USA: Edward Elgar, forthcoming.

In February 1933, Edward Chamberlin published The Theory of Monopolistic Competition. Joan Robinson's The Economics of Imperfect Competition followed in the spring. A disciplinary consensus quickly formed, holding that the two books represented simultaneous discoveries of the same theoretical...

Chao and Yu (2002) study immigration impact in a host country in the presence of imperfect competition. In their two sector model, when the monopolized non-traded service sector is skilled labor intensive, skilled labor immigration improves the welfare of the host country residents but unskilled...

Uruguay has experienced a remarkable recovery since the 2002 crisis, supported by sound policies and favorable external conditions. With the framework put in place in 2002, Uruguay abandoned an exchange rate peg in favor of a free float, adoped a monetary regime initially based on money targets,...

We provide extensive theoretical analysis of the general equilibrium of an economy with imperfect competition in the final goods sector, endogenous production and fully flexible prices in the presence of occasionally binding cash-in-advance (CIA) constraints, under general assumptions about the...

Attempts to give greater realism to a general competitive equilibrium paradigm, such as, famously, by E.H. Chamberlin and Joan Robinson, founder on the excessive inferential potency of its assumptions, as, for example, in the familiar postulate that orders all possible preferences. Either the...

There is a concern that the state-dominated, inefficient, and fragile banking systems in many low-income countries, especially in sub-Saharan Africa, are a major hindrance to economic growth. This paper systematically analyzes the impact of the far-reaching banking sector reforms undertaken in...

As in other sectors, competition in finance matters for allocative, productive and dynamic efficiency. Theory suggests, however, that unfettered competition is not first best given the special features of finance. I review these analytics and describe how to assess the degree of competition in...

This paper uses a variant of the IMF's Global Economy Model (GEM) to estimate the macroeconomic effects of Yemen's full accession into the Gulf Cooperation Council (GCC). After calibrating the model to Yemen and the GCC countries, several simulations were carried out to estimate the potential...

This paper reviews the scientific contributions of Paul Krugman to the study of international trade, on the occasion of his receipt of the 2008 Nobel Memorial Prize in Economics.  A simplified exposition is presented of some of his principal findings, including: the effects of trade on firm...