We examine how firm heterogeneity influences aggregate welfare through endogenous firm selection. We consider a homogeneous firm model that is a special case of a heterogeneous firm model with a degenerate productivity distribution. Keeping all structural parameters besides the productivity...

This paper explores the impact of input-trade liberalization on imported input and exported product prices. Using Chinese transaction data for 2000-2006, we capture causal effects between exogenous input tarif reductions and within firm changes in HS6 traded product prices. Identifcation is...

L’article montre qu’une politique d’amélioration des infrastructures d’une région pauvre permet de réduire l’inégalité spatiale mais peut aboutir à une géographie moins efficace et un taux de croissance plus faible. Les effets inverses sont obtenus pour une politique qui...

According to the standard view, when full competition prevails in product, labour, and capital markets, positive or negative exter- nal trade shocks may be accommodated by the migration of jobs be- tween sectors; the negative impact on some households income of lower nominal wages will be more...

This paper analyses the methodology developed by Behrens and Murata (2007) to introduce variable mark-ups into models of monopolistic competition. Their risk- aversion explanation to the presence of ¯xed mark-ups in the Dixit and Stiglitz (1977) model is validated; however, we show that their...

Investigations of the effect of quality differences on heterogeneous performance in exporting have been limited by lack of direct measures of quality. We examine exports of French wine, matching the exporting firms to producer ratings from two wine guides. We show that high quality producers...

This paper extends the Puga (1999) model by introducing urban frictions. It assumes that the agglomeration of manufacturing in a city imposes a cost on the inhabitants of the agglomerated region. Furthermore, an implicit function methodology is developed to provide a numerical stability function...

This paper analyzes the reaction of exporters to exchange rate changes. We present a model where, in the presence of distribution costs in the export market, high and low productivity firms react differently to a depreciation. Whereas high productivity firms optimally raise their markup rather...

An inconsistency is found in the demand side of the NEG models developed in Pflüger (2004) that follows from the absence of a non-negativity constraint on the consumption of agricultural goods. This seriously weakens the results of the original paper and those of ensuing contributions in...

Economists explaining location choices of foreign affiliates usually focus on country-level determinants. Costs of production, the size of expected demand, proxies for agglomeration effects, and various policy-related incentives form the usual set of covariates. Two dimensions of those choices...