@TechReport{CEPII:2007-06,
author={Lionel Fontagné and Guillaume Gaulier and Soledad Zignago},
title={Specialisation across Varieties within Products and North-South Competition},
year=2007,
month=May,
institution={CEPII},
type={Working Papers},
url={http://www.cepii.fr/CEPII/fr/publications/wp/abstract.asp?NoDoc=831},
number={2007-06},
abstract={},
keywords={International trade ; Specialization ; Competition ; BACI}
}