Altruists and envious people who meet in contests are symbionts. They do better than a population of narrowly rational individuals. If there are only altruists and envious individuals, a particular mixture of altruists and envious individuals is evolutionarily stable.

It can be advantageous for an office motivated party A to spend effort to make it public that a group of voters will lose from party A's policy proposal. Such effort is called inverse campaigning. The inverse campaigning equilibria are described for the case where the two parties can...

Incomplete information is a commitment device for time consistency problems. In the context of time consistent labor income taxation privacy can lead to a Pareto superior outcome and increases the effectiveness of public education as a second best policy.

Incomplete information is a commitment device for time consistency problems. In the context of time consistent labor income taxation privacy can lead to a Pareto superior outcome and increases the effectiveness of public education as a second best policy.

If firms compete in all-pay auctions with complete information, silent shareholdings introduce asymmetric externalities into the allpay auction framework. If the strongest firm owns a large share in the second strongest firm, this may make the strongest firm abstain from bidding. As a...

Contestants have to choose whether to initiate a contest or war, or whether to remain peaceful for another period. We find that agents wait and initiate the contest once their rival is sufficiently weak to be an easy target.

Anläßlich eines Symposiums, veranstaltet vom neu gegründeten Forschungsinstitut zur Zukunft der Arbeit (IZA) in Bonn, legten sechs Ökonomen in einer „Petersberger Erklärung' Thesen zur Arbeitsmarktpolitik vor. Nachfolgend der Wortlaut der Erklärung

This paper considers terrorism as an extortion activity. It uses tools from the theory of extortion and from conflict theory to describe how terrorism works, why terrorism is a persistent phenomenon, why terrorism is a violent phenomenon, and how retaliation affects the outcome. The analysis...