This short paper aims to find an empirical evidence that al Qaeda behaves as a contest organizer rewarding an indivisible prize – namely, official membership and economic rewards – to candidate extremists groups. Would-be terrorists must then compete with each other to prove their commitment...

This paper finds an empirical evidence that al Qaeda behaves as a contest organizer rewarding a prize to candidate extremist groups. Would-be terrorists must then compete with each other to prove their commitment and ability. Hence to maximize their own probability of winning the prize, each...

A parsimonious model is used to explore the risk-bearing decision under a payoff structure that emphasizes relative performance. Equilibrium betting amounts are derived for players who start with unequal endowments and face a lottery that offers either a positive or negative expected return. If...

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...

Considering several main types of dynamic contests (the race, the tug-of-war, elimination contests and iterated incumbency fights) we identify a common pattern: the discouragement effect. This effect explains why the sum of rent-seeking efforts often falls considerably short of the prize that is...