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First Author:
 
Dirk Rübbelke
TU Bergakademie Freiberg
dirk.ruebbelke@vwl.tu-freiberg.de
 
Freiberg, 09599, Germany
 
 
 
http://tu-freiberg.de/fakult6/avwl/team/prof-dr-dirk-ruebbelke

Second Author:

Wolfgang Buchholz
University of Regensburg and CESifo Munich
wolfgang.buchholz@wiwi.uni-regensburg.de