We provide an explanation for peer pressure in teams based on inequity aversion. Analyzinga two-period model with two agents, we find that the effect of inequity aversion stronglydepends on the information structure. When contributions are unobservable, agents act as ifthey were purely selfish....

A theory of responsibility is provided in a simple model where agents care for their career prospects. First, two agents with uncertain abilities work on a task. Second, a principal decides to promote one of them. Three types of equilibria occur. One in which no agent is responsible for the task...

In an asymmetric tournament model with endogenous risk choice by the agents it is shown that equilibrium efforts decrease (increase) with risk if abilities are sufficiently similar (different). Risk also affects winning probabilities. The interaction of both effects is analyzed.

We derive a natural definition of responsibility in a formal model where employees care for their career prospects: A superior holds a subordinate responsible for a task, when she announces her beliefs that this subordinate contributes most to this task. We show, that those announced beliefs...