In standard economics, individuals are rational actors and economic forces undermine institutions that impose large inefficiencies. The persistence of the caste system is evidence of the need for psychologically more realistic models of decision-making in economics. The caste system divides...

Experiments in the United States have found that pairs of individuals are generally able to form socially efficient conventions in coordination games of common interest in a remarkably short time. This paper shows that this ability is not universal. The paper reports the results of a field...

One of the most fruitful advances in modern economics has been the introduction of psychological realism into the model of "economic man." The World Development Report 2015 organizes the evidence about how humans actually think and make decisions into a coherent framework useful for designing...

Behavioral economics recognizes that mental models -- intuitive sets of ideas about how things work -- can bias an individual's perceptions of himself and the world. By representing an ascriptive category of people as unworthy, a mental model can foster unjust social exclusion of, for example, a...

An institution found in many traditional societies is the extended family system (kin system), an informal system of shared rights and obligations among extended family for the purpose of mutual assistance. In predominantly non-market economies, the kin system is a valuable institution providing...

How does the lack of legitimacy of property rights affect the dynamics of the creation of the rule of law? The authors investigate the demand for the rule of law in post-communist economies after privatization under the assumption that theft is possible, that those who have "stolen" assets...

If discrimination against an historically oppressed social group is dismantled, will the group forge ahead? The authors present experimental evidence that a history of social and legal disabilities may have persistent effects on a group's earnings through its impact on individuals' expectations....

The authors consider a multi-community city where community quality is linked to residents' civic efforts, such as being proactive in preventing crime and ensuring the quality of publicly provided goods. Homeownership increases incentives for such efforts, but credit market imperfections force...

In an earlier paper, the authors presented a mathematical exposition of a theory that demonstrated that mass privatization without institutions to limit asset-stripping may not lead to a demand for the rule of law ["After the Big Bang? Obstacles to the Emergence of the Rule of Law in...