We analyze a game in which a group of agents exert costly effort over time to make progress on a project. The project is completed once the cumulative efforts reach a pre-specified threshold, at which point it generates a lump sum payoff. We characterize a budget balanced mechanism that induces...

These lecture notes provide an introduction to dynamic public good provision games. These games can be used to model situations in which a group of agents collaborate to complete a project, or computer scientists developing open source software, or individuals contributing to a fundraising...

We consider a dynamic game of private provision of a discrete public good. In our model, a group of agents contributes to a project over time, which is completed once the cumulative contributions reach a threshold. Provided that this occurs prior to a prespecified deadline, each agent receives a...

We provide evidence that long-term relationships between trading parties emerge endogenously in the absence of third party enforcement of contracts and are associated with a fundamental change in the nature of market interactions. Without third party enforcement, the vast majority of trades are...

How do firms motivate their employees to be productive? The conventional wisdom is that workers respond to monetary incentives - "Pay them more and they will work harder." However, a large and growing body of empirical evidence from laboratory and field experiments, surveys, and observational...

This paper presents a formal theory of reciprocity. Reciprocity means that people reward kind actions and punish unkind ones. The theory takes into account that people evaluate the kindness of an action not only by its consequences but also by the intention underlying this action. The theory...

In this paper we show that a simple model of fairness preferences explains major experimental regularities of common pool resource (CPR) experiments. The evidence indicates that in standard CPR games without communication and without sanctioning possibilities inefficient excess appropriation is...

This paper presents a formal theory of reciprocity. Reciprocity means that people reward kind actions and punish unkind ones. The theory takes into account that people evaluate the kindness of an action not only by its consequences but also by the intention underlying this action. The theory...