This paper examines the properties of instrumental variables (IV) applied to models with essential heterogeneity, that is, models where responses to interventions are heterogeneous and agents adopt treatments (participate in programs) with at least partial knowledge of their idiosyncratic...

While much research in political economy points out the benefits of "limited government," political scientists have long emphasized the problems created in many less developed nations by "weak states," which lack the power to tax and regulate the economy and to withstand the political and social...

We survey and assess the literature on the positive and negative effects of ethnic diversity on economic policies and outcomes. Our focus is on both focus both cities in developed countries (the US) and villages in developing countries. We also consider the endogenous formation of political...

The standard model of signaling used in open economy macroeconomics concentrates on building a reputation when a policymaker's `type' is unknown. Observing tough policy leads market participants to raise the probability that a policymaker is tough, and therefore to expect tough policy in the...

Many of the crucial debates in development economics are encapsulated in the question of economic convergence. Is there a tendency for the poorer countries to grow more rapidly than the richer countries, and thereby to converge in living standards? Some recent research on endogenous growth has...

In this paper we analyze empirically the most important implications of two family political economy models of inflation: the "myopic? government approach and the "weak" government approach. In myopic government models inflation is the deliberate outcome of politicians strategic behavior, while...

The first part of the paper analyzes the various components (as well as likely failures) in the complex two-way market chain that links the supply of economic theories with the design, sale and implementation of workable economic policies. Among other aspects of this link two points are...

When a stabilization has significant distributional implications (as in the case of tax increases to eliminate a large budget deficit) different socio-economic groups will attempt to shift the burden of stabilization onto other groups. The process leading to a stabilization becomes a "war of...