Competition in which goods or rents are allocated as a function of the various efforts expended by players in trying to win these goods or rents is a very common phenomenon. A subset of examples comes from marketing, litigation, relative reward schemes or promotion tournaments in internal labor...

Climate experts delegated by countries to COP 24 and COP 25 show much agreement on international energy policy measures in the context of climate protection. Experts on average also agree with the proposal of compensating countries with large oil and gas reserves for not extracting them. But...

We consider two players' choice about the formation of an alliance ahead of conflict in a framework with incomplete information about the strength of co-players. When deciding on alliance formation, players anticipate the self-selection of other players and the informational value of own and...

We study a dynamic multi-stage contest that resolves in each stage only with a given probability. Assuming that there is unobservable heterogeneity in intrinsic motivations we derive properties of the equilibrium efforts across the different stages. Whereas in the corresponding complete...

The tug-of-war between single players is known to have a non-cooperative Markov-perfect equilibrium in which both players expend zero efforts and neither player drives the Markov process to one of the terminal states. We show that these peaceful outcomes vanish if the single players are replaced...

This chapter surveys the theory of international tax competition and coordination, which, matching the increasing policy importance of the topic, has grown substantially over the last 30 years. It focuses on the taxation of capital income, stressing that issues arise not only in relation to...

We study conflict between two groups of individuals. Using Schaffer's (1988) concept of evolutionary stability we provide an evolutionary underpinning for in-group altruism combined with spiteful behavior towards members of the rival out-group. We characterize the set of evolutionarily stable...

This chapter surveys the theory of international tax competition and coordination, which, matching the increasing policy importance of the topic, has grown substantially over the last thirty years. It focuses on the taxation of capital income, stressing that issues arise not only in relation to...

This paper surveys the theory on taxes on risky returns that originated from Domar and Musgrave (1944). Emphasis is given to the role of complete capital markets and on capital market imperfections arising from limited liability, moral hazard and adverse selection

This paper studies the role of beliefs about how own appearance and performance affect the subjective probability of being audited in a compliance situation, e.g. at customs. In an experiment in which underreporting has a higher expected payoff than truthful reporting we find an increase in...