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ralph lauren polo


First Author:
 
Holger Stichnoth
ZEW Mannheim
stichnoth@zew.de
 
 
 
 

Second Author:

Raphael Abiry
ZEW Mannheim and Goethe University Frankfurt
abiry@zew.de
 
 
 
 

Third Author:

Karsten Reuss
ZEW Mannheim and VDI Technologiezentrum Düsseldorf
kreuss@arcor.de