Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/52720 
Year of Publication: 
2011
Series/Report no.: 
IBES Diskussionsbeitrag No. 189
Publisher: 
Universität Duisburg-Essen, Institut für Betriebswirtschaft und Volkswirtschaft (IBES), Essen
Document Type: 
Working Paper

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