Apr 03 2014 Joachim Wagner   Low-productive exporters are high-quality exporters. Evidence from Germany   Abstract  Contact Information  Citation  Full Text  -  Note   Oct 22 2013 Joachim Wagner   Extensive margins of imports in the great import recovery in Germany, 2009/2010   Abstract  Contact Information  Citation  Full Text  -  Note   Feb 21 2013 Joachim Wagner   Are low-productive exporters marginal exporters? Evidence from Germany   Abstract  Contact Information  Citation  Full Text  -  Note   Feb 15 2013 Takeshi Ogawa   Application of Jones' Inequality to the n-country, m-good Ricardo–Graham Model   Abstract  Contact Information  Citation  Full Text  -  Note   Nov 06 2012 Joachim Wagner   Productivity and the extensive margins of trade in German manufacturing firms: Evidence from a non-parametric test   Abstract  Contact Information  Citation  Full Text  -  Note