We analyse pricing, e¤ort and tipping decisions in the online service GoogleAnswers. While users set a price for the answer to their question ex ante, theycan additionally give a tip to the researcher ex post.In line with the related experimental literature we …nd evidence that tippingis...

We consider guilt averse agents and principals and study the effects ofguilt on optimal behavior of the principal and the agent in a moral hazardmodel.The principal’s contract proposal contains a target effort in addition tothe monetary incentive scheme. By accepting the agreement, the...

Amidst a sharp increase in household debt levels, many countries have substantially reformedtheir consumer bankruptcy regulations. I first classify the mechanisms triggered by current U.S.and European bankruptcy regulations and then evaluate these mechanisms within a hidden actionmodel. I...