@TechReport{CEPII:2003-15,
author={Thierry Mayer and Keith Head},
title={The Empirics of Agglomeration and Trade},
year=2003,
month=October,
institution={CEPII},
type={Working Papers},
url={https://www.cepii.fr/CEPII/fr/publications/wp/abstract.asp?NoDoc=175},
number={2003-15},
}