In this article, we show that the recent financial crisis has significantly affected the potential total factor productivity (TFP) of the four largest euro area economies, as well as that of the rest of the euro area. We used a reduced-form equation of TFP, based on an approach recently...

This paper proposes a model in the spirit of Aghion and al. (2005) that relates the magnitude of the impact of competition on R&D to the cost of innovation. The effect of competition on R&D is an inverted U-shape. However, the shape is flatter and competition policy is therefore less relevant...

This paper exploits a unique panel of 59,000 French firms over 1990-2004 to investigate the interactions between R&D, advertising and the competitive environment.The empirical findings confirm the predictions of a dynamic model that complements results known in static frameworks. First, more...

R&D and innovation are seen as key determinants of productivity and competitiveness and it has been recognized that the low growth performances of EU countries of the last decades can largely be attributable to their poor research performance, as compared to the US. As a consequence, most EU...

[eng] The share of distance selling in total retail sales has increased steadily, driven by Internet commerce. Meanwhile, a large body of research has been devoted to measuring the impact of online shopping on consumer prices. These studies, based primarily on microeconomic data, reveal...

This paper studies the effect of credit constraints on the expansion and survival of firms in foreign markets. It develops a model of the multi-country firm, in which, lower access to external finance, or reduced internal liquidity, hampers the firm ability to finance the recurrent costs to...

How successful is the theory of the firm in explaining intra-firm trade? To answer this question we exploit a unique dataset of 1,141,393 French import transactions, spanning across firm, countries and products in 1999, and reporting whether a transaction is intra-firm. Overall, we find support...

Aghion and coauthors put forward a model which exhibits an inverted-U-shape relationship between innovation and competition: competition may increase the innovation profit margin for firms close to the technological frontier (since they escape competition) but strong competition could also...