@TechReport{CEPII:2017-22,
author={Vincent Boitier and Antoine Vatan},
title={Hierarchy of Trade and Sequential Exporting},
year=2017,
month=December,
institution={CEPII},
type={Working Papers},
url={http://www.cepii.fr/CEPII/fr/publications/wp/abstract.asp?NoDoc=10991},
number={2017-22},
}