This paper presents first results from a project to reconstitute the demographic behavior of three villages in Württemberg (southern Germany) from the mid-sixteenth to the early twentieth century. Using high-quality registers of births, deaths, and marriages, and unusual ancillary sources, we...

Hunger during pre-harvest lean seasons is widespread in the agrarian areas of Asia and Sub-Saharan Africa. We randomly assign an $8.50 incentive to households in rural Bangladesh to out-migrate during the lean season. The incentive induces 22% of households to send a seasonal migrant, their...

Low adoption of productive agricultural technologies is a puzzle. Agricultural extension services rely on external agents to communicate with farmers, although social networks are known to be the most credible source of information about new technologies. We conduct a large-scale field...

We examine the returns from owning cows and buffaloes in rural India. We estimate that when valuing labor at market wages, households earn large, negative average returns from holding cows and buffaloes, at negative 64% and negative 39% respectively. This puzzle is mostly explained if we value...

We test how donors respond to new information about a charity’s effectiveness. Freedom from Hunger implemented a test of its direct marketing solicitations, varying letters by whether they include a discussion of their program’s impact as measured by scientific research. The base script,...

We evaluate the impact of a health information intervention implemented through mobile phones, using a clustered randomized control trial augmented by qualitative interviews. The intervention aimed to improve sexual health knowledge and shift individuals towards safer sexual behavior by...

The discussion of the effectiveness of foreign aid has reached a high pitch. This paper assesses the sorry past and present key arguments for a potentially more effective and sustainable method of aid delivery. A key ingredient is to shake off the vestiges of structural adjustment and move...

Pricing policy for any experience good faces a key tradeoff. On the one hand, a price reduction increases immediate demand and hence more people learn about the product. On the other hand, lower prices may serve as price anchors and, through a comparison effect, decrease subsequent demand. This...

We partnered with a micro-lender in Mali to randomize credit offers at the village level. Then, in no-loan control villages, we gave cash grants to randomly selected households. These grants led to higher agricultural investments and profits, thus showing that liquidity constraints bind with...