Well-functioning groups enforce social norms that restrain opportunism, but the social structure of a society may encourage or inhibit norm enforcement. This paper studies how the exogenous assignment to different positions in an extreme social hierarchy - the caste system - affects individuals'...

This paper shows how badly a market economy may respond to a positive productivity shock in an environment with asymmetric information about project quality: some, all, or even more than all the benefits from the increase in productivity may be dissipated. In the model, based on Bernanke and...

This paper assesses the role of ideas in economic change, combining economic and historical analysis with insights from psychology, sociology and anthropology. Belief systems shape the system of categories ("pre-confirmatory bias") and perceptions (confirmatory bias), and are themselves...

It is typically assumed that being hard-working or clever is a trait of the person, in the sense that it is always there, in a fixed manner. However, in an experiment with almost 600 boys in India, cues to one's place in the traditional caste order turn out to influence the expression of these...

An earlier paper showed that an economy could be trapped in an equilibrium state in which the absence of the rule of law led to asset-stripping, and the prevalence of asset-stripping led to the absence of a demand for the rule of law, highlighting a coordination failure. This paper looks more...

Joseph E. Stiglitz, 2001 Nobel Laureate in Economics, helped create the theory of markets with asymmetric information and was one of the founders of modern development economics. He played a leading role in an intellectual revolution that changed the characterization of a market economy. In the...

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 race,...

This paper is an attempt to broaden economic discourse by importing insights into human behavior not just from psychology, but also from sociology and anthropology. Whereas the concept of the decision-maker in standard economics is the rational actor and, in early work in behavioral economics,...

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...