In jüngster Zeit ist ein zunehmendes Interesse an der modelltheoretischen und empirischen Analyse von Mehrproduktunternehmen zu verzeichnen. Mit einem neu verfügbaren repräsentativen Längsschnittdatensatz für 1995 bis 2004 dokumentiert die vorliegende Studie erstmals umfassend für deutsche...

Interest in the theoretical and empirical analysis of multi-product enterprises is growing. This paper uses newly available representative longitudinal data covering the years 1995 to 2004 to document for the first time the extent of product diversification in German manufacturing enterprises...

In Germany, for the reporting year 2009 transaction-level data on exports and imports of goods have been aggregated at the level of the exporting or importing firm for the first time. In these data the number of goods exported and imported and the number of countries exported to and imported...

Feenstra and Ma (2008) develop a monopolistic competition model where firms choose their optimal product scope by balancing the profits from a new variety against the costs of 'cannibalizing' sales of existing varieties. While more productive firms always have a higher market share, there is no...

Export is dominated by enterprises that trade more than one good with customers in more than one destination country. Germany, one of the leading actors on the world market for goods, is a case in point. Theoretical models of multiple-product, multipledestination exporters that can guide...