This discussion paper resulted in an article in the 'Economic Journal (2007). Volume 117, issue 522, pages 1025-1050.<P> One of the main findings of a large body of gift exchange experiments is that in an incomplete contracts environment workers on average do not shirk and usually provide more than...</p>

Standard economic theory predicts that firms will not invest in general training and will underinvest in specific training. Empirical evidence, however, indicates that firms do invest in general training of their workers. Evidence from laboratory experiments points to less underinvestment in...

This discussion paper resulted in a publication in <A href="http://www.sciencedirect.com/science/article/pii/S0899825611000571">'Games and Economic Behavior'</A>, 73(2), 573-94.<p>We consider repeated trust game experiments to study the interplay between explicit and relational incentives. After having gained experience with two payoff variations of the trust game, subjects in...</p></a>

This paper provides evidence about the effects of dismissals-for-cause requirements, aspecific component of employment protection legislation that has received little attentiondespite its potential relevance. We study a quasi-natural experiment generated by a lawintroduced in Portugal in 1989:...

This paper proposes a simple social network model of occupational segregation, generated by the existence of inbreeding bias among individuals of the same social group. If network referrals are important in getting a job, then expected inbreeding bias in the social structure results in different...