Investissements directs, des flux migratoires ou touristiques, du trafic téléphonique, etc. Liens historiques sont autant de variables utilisées dans d’autres champs de recherche, comme ceux des Au-delà de l’analyse du commerce, la distance entre deux pays, leur contigüité, les Par rapport aux séries élaborées par Jon Haveman, Vernon Henderson et Andrew Rose, nous avons étendu la couverture géographique, affiné les mesures et développé le GeoDist, ou base de données de distances du CEPII, proposeĮn ligne () des données géographiques utiles à la recherche empirique, en particulier pour l’estimation des équations de gravité dans GeoDist fournit l’ensemble des données développées par Mayer and Zignago (2005) pour mesurer lesĭifficultés d’accès aux marchés mondiaux. N OTES SUR LA BASE DE DONNÉES DE DISTANCES DU CEPII (GeoDist) JEL Classification: F10, F12 F13, F14, F15, C80.ĭistances, International Trade, Databases, Gravity, Trade Costs, Border Effects. Quality of measurement and number of variables provided. We try to improve upon the existing similar datasets in terms of geographical coverage, Gravity equations to identify particular links between countries such as colonial past, common languages,Ĭontiguity. The GeoDist webpage provides two distinct files: a country-specific one (geo_cepii)Īnd a dyadic one (dist_cepii) including a set of different distance and common dummy variables used in For most of them, different calculations of “intra-national distances”Īre also available. We have calculatedĭifferent measures of bilateral distances available for most countries across the world (225 countries in GeoDist provides several geographical variables, in particular bilateral distances measured using citylevel data to assess the geographic distribution of population inside each nation. GeoDist makes available the exhaustive set of gravity variables used in Mayer and Zignago (2005). Those inter-city distances being weighted by the share of the city in the overall country’s population. The basic idea, inspired by Head and Mayer (2002), is to calculate distanceīetween two countries based on bilateral distances between the biggest cities of those two countries, Have computed these distances using city-level data to assess the geographic distribution of population Internal / external distance ratio will yield to a mechanic upward bias in the border effect estimate. Question is in fact crucial for obtaining a correct estimate of trade impediments. How define internal distances of countries? How make thoseĬonstructed internal distances consistent with ‘traditional’ international distances calculations? The latter The main contribution of GeoDist is to compute internal (or intra-national) and international bilateralĭistances in a totally consistent way. Measures of bilateral distances (in kilometers) available for most countries across the world. Distance is the most common example of such a variable, and the file includes different The second dataset (dist_cepii) is dyadic, in the sense that it includes variables valid for pairs Under different definitions, a variable indicating whether the country is landlocked, and their colonial World, including the geographical coordinates of their capital cities, the languages spoken in the country Our first dataset (geo_cepii), incorporates country-specific geographical variables for 225 countries in the Variables in terms of geographical coverage, measurement and the number of variables provided. We try to improve upon the existing sets of Have been proposed in the literature and provide geographical and distance data, notably those developedīy Jon Haveman, Vernon Henderson and Andrew Rose. Political scientists, for instance, use distance and contiguity (among other determinants) toĮxplain why some pairs of countries have a higher probability than others of going to war. Even outside economics, several researchers in different social sciences use these types Covariates such as bilateral distance, contiguity, or colonial historical links have also been used in otherįields than international trade: for the study of bilateral flows of foreign direct investment for instance,īut also by researchers interested in explaining migration patterns, international flows of tourists, of telephone traffic, etc. A common use of these files is theĮstimation by trade economists of gravity equations describing bilateral patterns of trade flows. Online () for empirical economic research including geographical elements and variables. To analyze market access difficulties in global and regional trade flows. GeoDist makes available the exhaustive set of gravity variables developed in Mayer and Zignago (2005) The bilateral files: dist_cepii.xls and dist_cepii.dta. Cities variables used in the computation of distances. The country-specific files: geo_cepii.xls and geo_cepii.dtaĢ.1.
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