Many financial situations present individuals with simple alternatives to solving complex problems. Are individuals sophisticated; do they know when they are better off opting out of complexity? We tested complexity's effects and evaluated sophistication in a large and diverse sample. We randomly...

This paper investigates whether education weakens the relationship between early-life disadvantages and later-life SES. We use three proxies for advantage that we show are independently associated with SES in middle-age. Besides early, favorable family and neighborhood conditions, we argue that...

Although previous research has not always found that boys and girls are treated differently in rural India, son-biased stopping rules imply that estimates of the effect of gender on parental investments are likely to be biased because girls systematically end up in larger families. We propose a...

This paper studies distributional effects of education on health. In 1972, England, Scotland, and Wales raised their minimum school-leaving age from 15 to 16 for students born after 9/1/1957. Using a regression discontinuity design and objective health measures for 0.27 million individuals, we...

The appropriateness of many high-cost loan regulations depends on whether demand is driven by financial conditions ("misfortunes") or imperfect decisions ("mistakes"). Bank records from Iceland show borrowers are especially illiquid just before getting a loan, but that some spend the loans...

The Amazon rainforests have been undergoing unprecedented levels of human-induced disturbances. In addition to local impacts, such changes are likely to cascade following the eastern-western atmospheric flow generated by trade winds. We propose a model of spatial and temporal interactions...

This paper analyzes the roots of variation in de facto institutions, within a constant de jure institutional setting. We explore the role of rent-seeking episodes in colonial Brazil as determinants of the quality of current local institutions, and argue that this variation reveals a de facto...

This paper sets out an empirically-driven approach for targeting environmental policies optimally in order to combat deforestation. We focus on the Amazon, the world's most extensive rainforest, where Brazil's federal government issued a 'Priority List' of municipalities in 2008, to be targeted...

We exploit a 2004 credit reform in Brazil that simplified the sale of repossessed cars used as collateral for auto loans. We show that the change has led to larger loans with lower spreads and longer maturities. The reform expanded credit to riskier, low-income borrowers for newer, more...