2 IZA Discussion Papers
IZA Discussion Paper No. 8534
revised version published in: Journal of Economic Interaction and Coordination, 2017, 12 (3), 595-611
IZA Discussion Paper No. 4827
significantly revised version published as 'Shaping Beliefs in Experimental Markets for Expert Services: Guilt Aversion and the Impact of Promises and Money-Burning Options' in: Games and Economic Behavior, 2013, 81, 145-164