LLebensdauer und BerufLebensdauer und Berufde Joachim WagnerEdiciones (1)Lebensdauer und Beruf (1957)alemánMás obras de Joachim WagnerEEntry, exit and productivityEntry, exit and productivityPProductivity and size of the export marketProductivity and size of the export marketWWhy more West than East German firms exportWhy more West than East German firms export
