In a two-period continuous effort investment game as in Mohnen, et al. (2008), we demonstrate that peer transparency can be strictly harmful. This contrasts with Mohnen et al.'s result that transparency, through the observability of interim efforts, induces more effort and is thus beneficial if...

In a two-task team project with observable task outcomes, optimal incentives prioritize tasks differently depending on task externalities. When the tasks are independent, Principal follows a decreasing order by placing more essential task first. A task is more essential if its failure...

We study the problem of controlling bribery at minimum incentives cost in a four-layer, principal-supervisor-agent-client, model of public office. The model includes a second check of corruption by an incorruptible detector such as an outside inspector, the media or any whistle-blower. We...

A class of voting procedures based on repeated ballots and elimination of one candidate in each round is shown to always induce an outcome in the top cycle and is thus Condorcet consistent, when voters behave strategically. This is an important class as it covers multi-stage, sequential...

We consider a multi-awards generalization of King Solomon's problem: $k$ identical and indivisible awards should be distributed among $n$ agents, $k<n$, with the top $k$ valuation agents receiving the awards. Agents have complete information about each others' valuations. Glazer and Ma (1989) analyzed the single-prize (i.e., $k=1$) version of this problem. We show that in the `more than two agents' problem the mechanism of Glazer and Ma admits inefficient equilibria and thus fails to solve Solomon's problem. So, first we modify their mechanism to rule out inefficient equilibria and implement efficient prize allocation in subgame perfect equilibrium when there are at least three agents. Then it is shown that a simple repeated application of our modified mechanism will distribute $k\;(>1)$ prizes efficiently in subgame perfect equilibria without any monetary transfers in equilibrium. Finally, in the multi-awards case we relax the...</n$,>

We study and compare law enforcement costs under two alternative burden of proof rules with the objective of reducing crime to a target level. We show that presuming innocence rather than guilt has a cost advantage, mainly due to lower costs of preventing collusion between law enforcers and...