In repeated games there is in general a large set of equilibria. We also know that in the repeated prisoners dilemma there is a profusion of neutrally stable strategies, but no strategy that is evolutionarily stable. This paper investigates whether and how neutrally stable strategies can be...

This discussion paper resulted in a publication in <A href="http://link.springer.com/article/10.1007%2Fs00199-008-0338-8">'Economic Theory'</A>, 2009, 39(3), 355-376. Allowing for games with a continuous action space, we deal with the question whether and when static conceptslike evolutionary stability can shed any light on what happens in the dynamical context of a...</a>

This discussion paper resulted in a publication in <A href="http://link.springer.com/article/10.1007%2Fs11238-010-9196-5">'Theory and Decision'</A>, 2011, 71(2), 269-295.<P> Unique-lowest sealed-bid auctions are auctions in which participation is endogenous and the winning bid is the lowest bid among all unique bids. Such auctions admit very many Nash equilibria (NEs) in...</p></a>

We explore evolutionary dynamics for repeated games with small, but positive complexity costs. To understand the dynamics, we extend a folk theorem result by Cooper (1996) to continuation probabilities, or discount rates, smaller than 1. While this result delineates which payoffs can be...

We study participation games with negative feedback, i.e. games where players choose either to participate in a certain project or not and where the payoff for participating decreases in the number of participating players. We use the replicator dynamics to model the competition between...

This discussion paper resulted in a publication in <I>De Economist</I> (2001). Volume 149, p. 33-51.<P> In this paper the behavior of producers in a social environment is considered from a more sociological point of view than is usually done in economics. The producers play Bertrand price competition...</p></i>

In this paper I study conditions for the emergence of cooperativebehavior in a dynamic model of population interaction.The model has finitely many individuals located on a circle. The pay-off of each individual is partly based on the (local)interaction with neighbors and partly on (uniform)...

Firms signal high quality through high prices even if the market structure is highly competitive and price competition is severe. In a symmetric Bertrand oligopoly where products may differ only in their quality, production cost is increasing in quality and the quality of each firm’s product...

Firms hiring fresh graduates face uncertainty on the future productivity of workers. Theory suggests that starting wages reflect this, with lower pay for greater uncertainty. We use the dispersion of exam grades within a field of education as an indicator of the unobserved heterogeneity that...

This discussion paper resulted in a publication in the <A href="http://onlinelibrary.wiley.com/doi/10.1111/ecoj.12074/abstract;jsessionid=368B56AE8F9F0C1A8F686B9FB93B1CCC.f01t02">'Economic Journal'</A>, 2014, 124(579), 1086-1105.<P> We examine the causal effect of commuting distance on workers' wages in a quasi-natural experiments setting using information on all workers in Denmark. We account for endogeneity of distance by...</p></a>