Microfinance games

Microfinance has been heralded as an effective way to address imperfections in credit markets. But from a theoretical perspective, the success of microfinance contracts has puzzling elements. In particular, the group-based mechanisms often employed are vulnerable to free-riding and collusion, although they can also reduce moral hazard and improve selection. The authors created an experimental economics laboratory in a large urban market in Lima, Peru and over seven months conducted 11 different games that allow them to unpack microfinance mechanisms in a systematic way. They find that risk-taking broadly conforms to predicted patterns, but that behavior is safer than optimal. The results help to explain why pioneering microfinance institutions have been moving away from group-based contracts.Banks&Banking Reform,Insurance&Risk Mitigation,Financial Intermediation,Social Accountability,Civic Participation and Corporate Governance

Microfinance Games

Microfinance has been heralded as an effective way to address imperfections in credit markets. From a theoretical perspective, however, the success of microfinance contracts has puzzling elements. In particular, the group-based mechanisms often employed are vulnerable to free-riding and collusion, although they can also reduce moral hazard and improve selection. We created an experimental economics laboratory in a large urban market in Lima, Peru and over seven months conducted eleven different games that allow us to unpack microfinance mechanisms in a systematic way. We find that risk-taking broadly conforms to predicted patterns, but that behavior is safer than optimal. The results help to explain why pioneering microfinance institutions have been moving away from group-based contracts.Microfinance, Group Lending, Information Asymmetries, Contract Theory, Experimental Economics

Microfinance Games

Microfinance has been heralded as an effective way to address imperfections in credit markets. From a theoretical perspective, however, the success of microfinance contracts has puzzling elements. In particular, the group-based mechanisms often employed are vulnerable to free-riding and collusion, although they can also reduce moral hazard and improve selection. We created an experimental economics laboratory in a large urban market in Lima, Peru and over seven months conducted eleven different games that allow us to unpack microfinance mechanisms in a systematic way. We find that risk-taking broadly conforms to predicted patterns, but that behavior is safer than optimal. The results help to explain why pioneering microfinance institutions have been moving away from group-based contracts. The work also provides an example of how to use framed field experiments as a methodological bridge between laboratory and field experiments.microfinance, group lending, information asymmetries, contract theory, experimental economics

You've Earned It: Combining Field and Lab Experiments to Estimate the Impact of Human Capital on Social Preferences

We combine data from a field experiment and a laboratory experiment to measure the causal impact of human capital on respect for earned property rights, a component of social preferences with important implications for economic growth and development. We find that higher academic achievement reduces the willingness of young Kenyan women to appropriate others' labor income, and shifts players toward a 50-50 split norm in the dictator game. This study demonstrates that education may have long-run impacts on social preferences, norms and institutions beyond the human capital directly produced. It also shows that randomized field experiments can be successfully combined with laboratory experiment data to measure causal impacts on individual values, norms, and preferences which cannot be readily captured in survey data.

Social Preferences and Fairness Norms as Informal Institutions: Experimental Evidence

We conduct a series of dictator games in which the status of the dictator relative to other players varies across treatments. Experiments are conducted in a conventional university lab and in villages in rural Kenya. We find that status is an important determinant of dictator game giving, but the relative importance of earned and unearned status differs across cultures.

Replication data for: "The Impact of Violence on Individual Risk Preferences: Evidence from a Natural Experiment"

Replication data for: "The Impact of Violence on Individual Risk Preferences: Evidence from a Natural Experiment

The Distributional Preferences of Americans *

Abstract We measure the distributional preferences of a large, diverse sample of Americans by embedding modified dictator games that vary the relative price of redistribution in the American Life Panel. Subjects' choices are generally consistent with maximizing a (social) utility function. We decompose distributional preferences into two distinct components -fair-mindedness (tradeoffs between oneself and others) and equality-efficiency tradeoffs -by estimating constant elasticity of substitution utility functions at the individual level. Approximately equal numbers of Americans have equality-focused and efficiency-focused distributional preferences. After controlling for individual characteristics, our experimental measures of equality-efficiency tradeoffs predict the political decisions of our subjects. JEL Classification Numbers: C91, D64 * We thank Daniel Markovits and Daniel Silverman for helpful discussions and comments. This paper has also benefited from suggestions by the participants of seminars at several universities and conferences. We thank the American Life Panel team at the RAND Corporation for software development and technical and administrative support. We acknowledge financial support from the Center for Equitable Growth (CEG) at th