This paper examines the possibility that a country might follow the global technology frontier partially instead of fully. We develop an empirical test of this possibility, which measures by how much a country follows the frontier. The test shows that indeed most countries do not follow the...

Abstract. We put forward a tractable, interpretable, and easily generalizable framework for modeling endogeneous factor-augmenting technology choice by monopolistically competitive firms. The setup is framed within the standard Dixit and Stiglitz (1977) model of monopolistic competition. Optimal...

We extend the efficiency wage model of Shapiro and Stiglitz to account for the observation that workers’ effort has a tendency to fall when they approach the end of their employment contract. In particular, we find that the efficiency wage increases when the end of term approaches for a given...

Why doesn’t capita flow to developing countries as predicted by the neoclassical model? Is the explanation simply that cross-country marginal productivity of capital (MPK) is equalized, and if so, why? We revisit these issues by unpacking MPK into its public and private components, since there...

This paper combines the standard incomplete markets model of uninsurable idiosyncratic risks and borrowing constraints with the Arrow/Romer approach to endogenous growth to analyze the interaction of risk, growth, and inequality, the latter also endogenously determined in equilibrium. We derive...

We introduce wage setting via efficiency wages in the neoclassical one-sector growth model to study the growth effects of wage inertia. We compare the dynamic equilibrium of an economy with wage inertia with the equilibrium of an economy without it. We show that wage inertia affects the long run...

The paper develops a simple model to describe the dynamics of international trade flows. We show that such a setup is able to simultaneously match a large number of empirical regularities, such as the fraction of zero trade flows across pairs of countries, the positive relationship between...

We argue that geographical clustering helps the weakest firms to survive. We model this neglected negative externality by adapting the heterogeneous firms model of Melitz (2003) to include firms that invest in R&D and firms that do not. Separating the chance of post-entry market exit into a...

This paper develops a long-run consumer optimization model with endogenous pollution and endogenous population. The positive check increases mortality if pollution increases. The optimal path is sustainable if it provides non-decreasing consumption for a non-decreasing population. As usually,...

Using a large dataset covering all trade in military equipment over the period 1950-2007, we address the relationship between differences in polity and arms trade from a novel empirical perspective. We provide evidence on the determinants of link formation at the bilateral level by estimating...