GeoDist made available the exhaustive set of gravity variables used in
Mayer and Zignago (2005). GeoDist 's provides several geographical
variables, in particular bilateral distances measured using city-level
data to assess the geographic distribution of population inside each
nation. We have calculated different measures of bilateral distances
available for most countries across the world (225 countries in the
current version of the database). For most of them, different
calculations of "intra-national distances'' are also available. We try
to improve upon the existing similar datasets in terms of geographical
coverage, quality of measurement and number of variables provided.
The GeoDist provides two distinct files:
a country-specific
one : geo_cepii.xls (geo_cepii.dta)
a dyadic one
dist_cepii.xls (dist_cepii.dta) including a set of
different distance and common dummy variables used in gravity equations
to identify particular links between countries such as colonial past,
common languages, contiguity.
See the detailed description of GeoDist: Mayer and Zignago (2011),
Notes on CEPII’s distances measures (GeoDist), CEPII Working Paper 25. |
