In a contest players compete for winning a prize by effort and thereby increasing their probability of winning. Contestants, however, could also improve their own relative position by harming the other players. We experimentally analyze contests with heterogeneous agents who may individually...

Splitting leagues or tournaments seems to be puzzling when agents are homogeneous and splitting leads to a negative competition effect. However, it can be shown that the principal can nevertheless benefit from splitting. First, splitting can be used as a divide-and-rule strategy by the principal...

In this paper we present an axiomatic analysis of several ranking methods for tournaments. We find that two of them exhibit a very good behaviour with respect to the set of properties under consideration. One of them is the maximum likelihood ranking, the most common method in statistics and...

We identify a new problem that may arise when heterogeneous workers are motivated by relative performance schemes: If workers’ abilities and the production technology are complements, the firm may prefer not to adopt a more advanced technology even though this technology would costlessly...

We examine the impact of ambiguity on economic behaviour. We present a relatively non-technical account of ambiguity and show how it may be applied in economics. Optimistic and pessimistic responses to ambiguity are formally modelled. We show that pessimism has the effect of increasing...