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Full-Text Articles in Social and Behavioral Sciences

How Effectively Do People Learn From A Variety Of Different Opinions?, Andrew Healy Dec 2009

How Effectively Do People Learn From A Variety Of Different Opinions?, Andrew Healy

Economics Faculty Works

This paper presents experimental evidence about how effectively individuals learn from information coming from heterogeneous sources. In the experiment, Thai subjects observed information that came from Americans and from other Thais that they could use to help them answer a series of questions. Despite listening too little to either group, subjects demonstrated a significant amount of statistical sophistication in how they weighed observed American information relative to observed Thai information. The data indicate that subjects understood that outside information has extra value because people from the same group tend to make the same kinds of mistakes. The results illustrate the …


Incentives For Experimenting Agents, Johannes Hörner, Larry Samuelson Sep 2009

Incentives For Experimenting Agents, Johannes Hörner, Larry Samuelson

Cowles Foundation Discussion Papers

We examine a repeated interaction between an agent, who undertakes experiments, and a principal who provides the requisite funding for these experiments. The agent’s actions are hidden, and the principal, who makes the offers, cannot commit to future actions. We identify the unique Markovian equilibrium (whose structure depends on the parameters) and characterize the set of all equilibrium payoffs, uncovering a collection of non-Markovian equilibria that can Pareto dominate and reverse the qualitative properties of the Markovian equilibrium. The prospect of lucrative continuation payoffs makes it more expensive for the principal to incentivize the agent, giving rise to a dynamic …


Incentives For Experimenting Agents, Johannes Hörner, Larry Samuelson Sep 2009

Incentives For Experimenting Agents, Johannes Hörner, Larry Samuelson

Cowles Foundation Discussion Papers

We examine a repeated interaction between an agent, who undertakes experiments, and a principal who provides the requisite funding for these experiments. The repeated interaction gives rise to a dynamic agency cost — the more lucrative is the agent’s stream of future rents following a failure, the more costly are current incentives for the agent, giving the principal an incentive to reduce the continuation value of the project. We characterize the set of recursive Markov equilibria. We also find that there are non-Markov equilibria that make the principal better off than the recursive Markov equilibrium, and that may make both …


Incentives For Experimenting Agents, Johannes Hörner, Larry Samuelson Sep 2009

Incentives For Experimenting Agents, Johannes Hörner, Larry Samuelson

Cowles Foundation Discussion Papers

We examine a repeated interaction between an agent, who undertakes experiments, and a principal who provides the requisite funding for these experiments. The repeated interaction gives rise to a dynamic agency cost — the more lucrative is the agent’s stream of future rents following a failure, the more costly are current incentives for the agent, giving the principal an incentive to reduce the continuation value of the project. We characterize the set of recursive Markov equilibria. We show that there are non-Markov equilibria that make the principal better off than the recursive Markov equilibrium, and that may make both players …


Incentives For Experimenting Agents, Johannes Hörner, Larry Samuelson Sep 2009

Incentives For Experimenting Agents, Johannes Hörner, Larry Samuelson

Cowles Foundation Discussion Papers

We examine a repeated interaction between an agent, who undertakes experiments, and a principal who provides the requisite funding for these experiments. The agent’s actions are hidden, and the principal, who makes the offers, cannot commit to future actions. We identify the unique Markovian equilibrium (whose structure depends on the parameters) and characterize the set of all equilibrium payoffs, uncovering a collection of non-Markovian equilibria that can Pareto dominate and reverse the qualitative properties of the Markovian equilibrium. The prospect of lucrative continuation payoffs makes it more expensive for the principal to incentivize the agent, giving rise to a dynamic …


Collaborating, Alessandro Bonatti, Johannes Hörner Apr 2009

Collaborating, Alessandro Bonatti, Johannes Hörner

Cowles Foundation Discussion Papers

This paper examines moral hazard in teams over time. Agents are collectively engaged in an uncertain project, and their individual efforts are unobserved. Free-riding leads not only to a reduction in effort, but also to procrastination. The collaboration dwindles over time, but never ceases as long as the project has not succeeded. In fact, the delay until the project succeeds, if it ever does, increases with the number of agents. We show why deadlines, but not necessarily better monitoring, help to mitigate moral hazard.