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...

Die Prinzipal-Agent-Theorie befasst sich vornehmlich mit betriebswirtschaftlichen Problemen, dieaus Interessenskonflikten in Vertragsbeziehungen bei asymmetrischer Information resultieren. Esexistiert eine große Vielfalt unterschiedlicher Theorievarianten, die sich jedoch um...

The probability that actors in economic relationships break rules increases with the profits they thus expect to earn. It decreases with the probability and level of short - and long-term losses resulting from disclosure. It also decreases with the level of social context factors and intrinsic...

This paper theoretically and empirically analyzes the interaction of emigration of highly skilled labor, an economy`s income gap to potential host economies of expatriates, and optimal public infrastructure investment. In a model with endogenous education and R&D investment decisions we show...

Increasingly, funding of academic research is carried out through the support of collaboration, rather than through single awards to a sole grant holder. The practice is well supported by evidence that larger, network-based research achieve high quality while leading to a number of capacity...

Building on earlier work (Barr 2004a), this paper discusses the role of tuition fees in paying for teaching at universities in England, though much of the analysis applies also to the rest of the UK and to OECD countries. There is no discussion of financing research. The paper addresses three...

Business groups in emerging markets perform better than unaffiliatedfirms. One explanation is that business groups substitute some functions ofmissing institutions, for example, enforcing contracts. We investigate thisby setting up a model where firms within the business group are connectedto...

Seit einigen Jahren wird in Deutschland über Veränderungen in der Finanzierungund im Leistungskatalog des Krankenversicherungssystems intensiv diskutiert. Dabeiwerden häufig problematische Anreizstrukturen im Hinblick auf das Verhaltender Versicherten genannt. Insbesondere haben Versicherte...

The Peter Principle captures two stylized facts about hierarchies: first, promotions often placeemployees into jobs for which they are less well suited than for that previously held. Second,demotions are extremely rare...