Co-auteur
  • HEAD Keith (26)
  • MARTIN Philippe (17)
  • THOENIG Mathias (12)
  • MAYNERIS Florian (10)
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Type de Document
  • Article (42)
  • Working paper (26)
  • Livre (7)
  • Thèse de doctorat (5)
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Publié en 2014-02
HEAD Keith
THOENIG Mathias
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This paper investigates the consequences of replacing the assumption of Pareto heterogeneity with log-normal heterogeneity. This case is interesting because it (a) maintains some desirable analytic features of Pareto, (b) ts the complete distribution of rm sales rather than just approximating the right tail, and (c) can be generated under equally plausible processes (see online appendix). The log-normal is reasonably tractable but its use sacrices some \scale-free" properties conveyed by the Pareto distribution. Aspects of the the calibration that do not matter under Pareto lead to important dierences in the gains from trade under log-normal.

in American Economic Review Publié en 2014-02
MELITZ Marc J.
OTTAVIANO Gianmarco
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We build a theoretical model of multi-product firms that highlights how competition across market destinations affects both a firm's exported product range and product mix. We show how tougher competition in an export market induces a firm to skew its export sales toward its best performing products. We find very strong confirmation of this competitive effect for French exporters across export market destinations. Theoretically, this within-firm change in product mix driven by the trading environment has important repercussions on firm productivity. A calibrated fit to our theoretical model reveals that these productivity effects are potentially quite large.

in Journal of Transnational Management Development Publié en 1998
MUCCHIELLI Jean-Louis
MAYER Thierry
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We address the question of competition within the location choices of firms. In a framework of agglomeration effects, both spatial and temporal dimensions of the firms' decisions are studied. We show that the competition consequences of preemptive move and optimal time of entry can interfere with the geographical decisions. Our results contrast with those of agglomeration economics models which generally provide extreme results of mono-location. The equilibria described here tend to demonstrate that the relation between competition strength and spatial differentiation remains pertinent in a context of agglomeration economies. A conditional logit empirical study analyses the geographical choice of Japanese firms in Europe. Agglomeration variables, public policies and labour market determinants are tested, highlighting the existence of temporal and spatial proximity in the behaviour of firms. The competition conditions experienced by firms of each specific sector also appear to be important in the location decision of Japanese investors.

in European Journal of Political Economy Publié en 2007-12
DISDIER Anne-Célia
MAYER Thierry
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This paper studies the relationship between bilateral trade patterns and opinions. It uses the Eurobarometer public opinion surveys published by the European Commission, which provide data on the share of the population in each EU15 member country in favour of each CEEC joining the EU. Our results first suggest that bilateral opinions have a statistically robust and relatively large effect on imports, even when standard and new covariates capturing proximity between countries are controlled for. We interpret this effect as reflecting a positive impact of “bilateral affinity” on trade patterns. We also show that it is possible to go some way towards explaining the variance in bilateral opinions among our sample. Last we provide some preliminary attempt to determine causality between bilateral opinions and imports.

Publié en 2008-04
MAYER Thierry
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This paper provides evidence on the long-term impact of market potential on economic development. It derives from the New Economic Geography literature a structural estimation where the level of factors' income of a country is related to its export capacity, labelled Market Access (MA) by Redding and Venables (2004), or Real Market Potential (RMP) by Head and Mayer (2004). The empirical part evaluates this market potential for all countries in the world with available trade data over the 1960-2003 period and relates it to income per capita. Overall results show that market potential is a powerful driver of increases in income per capita.

in Journal of International Economic Law Publié en 2005-05
COMBES Pierre-Philippe
LAFOURCADE Miren
MAYER Thierry
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Using theory-grounded estimations of trade flow equations, this paper investigates the role that business and social networks play in shaping trade between French regions. The bilateral intensity of networks is quantified using the financial structure and location of French firms and bilateral stocks of migrants. Compared to a situation without networks, migrants are shown to double bilateral trade flows, while networks of firms multiply trade flows by as much as four in some specifications. Finally, taking network effects into account divides the estimation of the impact of transport costs and of the effect of administrative borders by around three.

in Regional science and urban economics Publié en 2004
CROZET Matthieu
MAYER Thierry
MUCCHIELLI Jean-Louis
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This paper studies the determinants of location choice by foreign investors in France using a sample of almost 4000 foreign investments over 10 years and 92 locations. Concerning agglomeration effects, we find very strong evidence of positive spillovers between firms, and identify detailed patterns of clustering, assessing, for instance, the countries of origin and the industries for which those spillovers are the most substantial. Concerning regional policies, we find very little evidence of any positive impact. Finally, we identify a ‘learning process’ of FDI, the location decisions becoming more remote from the country of origin during the period we study.

in Economie & prévision Publié en 2002
HEAD Keith
MAYER Thierry
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Nous utilisons la méthodologie des effets frontières pour étudier les fondements empiriques des inquiétudes liées à la construction d'une "Forteresse Europe". Nous étudions dans quelle mesure les importations en provenance des États-Unis et du Japon d'un pays européen représentatif ont été réellement soumises à des contraintes plus importantes que les importations en provenance d'autres pays européens en prenant le commerce intra-national comme niveau de référence. Nos résultats font état d'une augmentation relativement importante de la difficulté d'accès au marché européen pour les producteurs japonais et américains au cours des années 80. Cette évolution contraste assez nettement avec la baisse graduelle des effets frontières à l'intérieur de l'Union Européenne.

in The Review of Economics & Statistics Publié en 2004-11
HEAD Keith
MAYER Thierry
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This paper develops a theoretical model of location choice under imperfect competition to formalize the notion that firms prefer to locate “where the markets are.” The profitability of a location depends on a term that weights demand in all locations by accessibility. Using a sample of Japanese firms’ choices of regions within European countries, we compare the theoretically derived measure of market potential with the standard form used by geographers. Our results show that market potential matters for location choice but cannot account entirely for the tendency of firms in the same industry to agglomerate.

in Regional science and urban economics Publié en 2006-09
HEAD Keith
MAYER Thierry
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In new economic geography models, the spatial distribution of demand is a key determinant of economic outcomes. In one strand, it is argued that higher demand gives rise to a more than proportionate increase in production, a result known as the home market effect. Another strand emphasizes the effects of market sizes on factor prices. We highlight the theoretical connection between these two strands. Using data on 57 European regions, we show how wages and employment respond to differentials in what we call real market potential, a discounted sum of demands derived from the theory.

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