Media type: E-Article Title: Causality in demand: a co-integrated demand system for trout in Germany Contributor: Nielsen, Max; Jensen, Frank; Setälä, Jari; Virtanen, Jarno Published: Informa UK Limited, 2011 Published in: Applied Economics, 43 (2011) 7, Seite 797-809 Language: English DOI: 10.1080/00036840802600038 ISSN: 0003-6846; 1466-4283 Keywords: Economics and Econometrics Origination: Footnote: