We propose that a person's desire to consume an object or possess an attribute increases in how much others want but cannot have it. We term this motive superiority-seeking, and show that it generates preferences for exclusion that help explain a host of market anomalies and make novel...

The elegant economic picture of rational consumers achieving Pareto optimality through trade in decentralized self-organized markets is blurred by market imperfections and choices inconsistent with consumer self-interest. Behavioral economics has documented these errors in choice, and considered...

Why are certain movies more successful in some markets than others? Are the entertainment products we consume reflective of our core values and beliefs? These questions drive our investigation into the relationship between a society's oral tradition and the financial success of films. We combine...

Kinship ties are a common institution that may facilitate in-group coordination and cooperation. Yet their benefits - or lack thereof - depend crucially on the broader institutional environment. We study how the prevalence of clan ties affect how communities confronted two well-studied...

Moral universalism, the extent to which individuals exhibit similar altruism and trust towards in-group and out-group members, varies widely across societies. We test the hypothesis from anthropology that the requirements of transhumant pastoralism - a livelihood in which populations seasonally...

Religious adherence has been hard to study in part because it is hard to measure. We develop a new measure of religious adherence, which is granular in both time and space, using anonymized mobile phone transaction records. After validating the measure with traditional data, we show how it can...

Why does inequality vary across societies? We advance the hypothesis that in a market economy, where earning differentials reflect variations in productive traits, a significant component of the differences in income inequality across societies can be attributed to variation in societal...

Decisions to invest in human capital depend on people's time preferences. We show that differences in patience are closely related to substantial subnational differences in educational achievement, leading to new perspectives on longstanding within-country disparities. We use social-media data -...

What drives change in a society's values? From Marx to modernization theory, scholars have identified a connection between structural transformation and social change. To understand how changes in a society's dominant mode of production affect its dominant values, we examine the case of the...

While observational evidence suggests that people behave more prosocially towards members of their own ethnic group, many laboratory studies fail to find this effect. One possible explanation is that coethnic preference only emerges during times of stress. To test this hypothesis, we...