Defensive innovations in developed countries can explain the empirical phenomenon that openness towards trade with less-developed countries does not necessarily induce a substantial increase in the wage differential and trade volumes. Building on step-by-step innovations as introduced by Aghion...

We estimate a multi-country, multi-sector New Keynesian model to quantify the drivers of domestic inflation during 2020-23 in several countries, including the United States. The model matches observed inflation together with sector-level prices and wages. We further measure the relative...

A large empirical literature finds that there is too little international trade, and too much intra-national trade to be rationalized by observed international trade costs such as tariffs and transport costs. The literature uses frameworks in which goods are assumed to be produced in just one...

How strong are strategic complementarities in price setting across firms? In this paper, we provide a direct empirical estimate of firm price responses to changes in prices of their competitors. We develop a general framework and an empirical identification strategy to estimate the elasticities...

North-South competition in quality: Analyzing a new database that makes it possible to disaggregate trade flows across many countries according to unit values, we show that international specialization in terms of quality within industries and product categories plays an important role in the...

This paper relates the volatility of the trade-weighted effective real exchange rate to the degree of trade openness of an economy. The theoretical part presents an intertemporal monetary model of a small open economy with nominal rigidities. Both monetary and aggregate supply shocks are shown...

This paper analyses the impact of trade openness on inflation in a strategic framework characterized by monopolistic production in the domestic sector and unionized labour markets. By stressing the interplay between internal and external sources of economic distortion, we show that the economy's...