Media type: E-Article Title: Product variety, competition and economic growth Contributor: Saviotti, Pier Paolo; Pyka, Andreas Published: Springer Science and Business Media LLC, 2008 Published in: Journal of Evolutionary Economics, 18 (2008) 3-4, Seite 323-347 Language: English DOI: 10.1007/s00191-008-0097-5 ISSN: 0936-9937; 1432-1386 Origination: Footnote: