We study a propaganda campaign sponsored by the government against the main political challenger in the days preceding the 2015 Argentine runoff presidential election. Subjects in the treatment group watched an “ad” initially aired during soccer transmissions that was part of this campaign...

In the last years, several countries implemented policy interventions to entitle urban squatters, encouraged by the results of studies showing large welfare gains from entitlement. We study a natural experiment in the allocation of land titles to very poor families in a suburban area of Buenos...

Argentina privatized most public utilities during the 1990's but re-nationalized the main water company in 2006. We study beliefs about the benefits of the privatization of water services amongst low and middle income groups immediately after the 2006 nationalization. Negative opinions about the...

We study the behavioral changes due to marijuana consumption on fertility and its key mechanisms, as opposed to physiological changes. We can employ several large proprietary data sets, including the 1997 National Longitudinal Survey of Youth, Nielsen Retail Scanner database, as well as the...

We mailed letters to non-existent business addresses in 159 countries (10 per country), and measured whether they come back to the return address in the US and how long it takes. About 60% of the letters were returned, taking over 6 months, on average. The results provide new objective...

Does information about rampant political corruption increase electoral participation and the support for challenger parties? Democratic theory assumes that offering more information to voters will enhance electoral accountability. However, if there is consistent evidence suggesting that voters...

Across public junior high schools in 21 Colombian cities, we conducted a randomized evaluation of a mandatory six-month internet-based sexual education course. Six months after finishing the course, we find a 0.4 standard deviation improvement in knowledge, a 0.2 standard deviation improvement...

Reducing tax evasion is a key priority for many governments, particularly in developing countries. A growing literature has argued that the ability to verify taxpayer self-reports against reports from third parties is critical for modern tax enforcement and the growth of state capacity. However,...

This paper investigates the pricing effects of financial innovation in an economy with endogenous participation and heterogeneous income risks. The introduction of non-redundant assets endogenously modifies the participation set, reduces the covariance between dividends and participants'...

We evaluate multiple variants of a commonly used intervention to boost education in developing countries -- the conditional cash transfer (CCT) -- with a student level randomization that allows us to generate intra-family and peer-network variation. We test three treatments: a basic CCT...