Here are some of my current research projects.
A classical motivation for using information provided by the local community to target social benefits in developing countries is that community members may have more current, dynamic welfare information about others than a centralized program implementer. However, there is little direct evidence supporting this claim; most relies on correlations between community-provided information and survey-collected welfare metrics. To understand the information community members have and use in targeting, we conduct lab-in-the-field experiments and community meeting exercises with 300 families in Purworejo, Central Java. Participants complete tasks where they individually rank other community members based on specific welfare benchmarks (consumption, neediness, and assets), as well as targeting tasks. We find that community-held welfare information is distinct from information captured using standard survey methods, and seems to reflect longer-term fixed attributes, rather than dynamic welfare information. Accordingly, community members use longer-term wealth information to predict dynamic welfare, and to target social benefits. Moreover, we find that community information about more dynamic measures does not outperform simple proxy means test scores in predicting more dynamic survey welfare metrics. Finally, we find community members’ information sets are fairly concordant, and rankings constructed during community meetings do not seem to more closely reflect survey-collected welfare metrics. These findings suggest that community-based targeting methods may be useful in identifying long-term poverty, but less useful in identifying acute short-term distress.
We estimate California residents' preferences and willingness to pay (WTP) for current beverage container recycling methods, including curbside pick-up services, drop-off at government-subsidized recycling centers, and drop-off at non-subsidized centers. Using a representative online and telephone survey of California households, we estimate a discrete choice model that identifies: the California Redemption Value (CRV) refund amount (paid to consumers only if they recycle at drop-off centers), the volume of recyclable material generated by the household, and the effort associated with bringing recyclable materials to recycling centers, as key attributes explaining consumers' beverage container disposal decisions. Additionally, we use counterfactual policy analysis to show that increasing the CRV amount increases overall recycling rates, with the largest changes in consumer surplus accruing to inframarginal consumers, who are on the boundary between taking containers to recycling centers and recycling using curbside pick-up, namely white and higher income consumers. Conversely, we show that eliminating government-subsidized drop-off centers does not significantly alter consumer surplus for any major demographic group, and has little impact on recycling rates.
The Onion Value Chain in Senegal: Alternative Configurations and Differential Performances (with Alain de Janvry, Abdoulaye Cisse, Elisabeth Sadoulet, and Mame Mor Syll Anta)
Understanding Gender-Specific Constraints to Agricultural Technology: Evidence from Cassava Farming in Kenya (with Ethan Ligon and Muthoni Ng'ang'a)
Female subsistence farmers in developing countries often have lower levels of agricultural productivity than men, partially due to lower adoption rates of agricultural technologies. These lower adoption rates may be due to lack of physical access to new technologies or lack of access to information about new technologies, among other explanations. In this study, we consider these two classes of explanations of low technology use among females, and consider the relative impacts of interventions designed to combat each. Specifically, we consider the technology of improved cassava in Murang’a County, Kenya, a more climate-resistant maize substitute, which has been underutilized especially by female farmers. Using a randomized control trial with a 2x2 matrix treatment design, we test the effects on cassava adoption by female farmers of two interventions: delivering cassava seeds directly to female farmers at their homes (improved access), and hiring female “lead farmers,” to diffuse information about cassava seeds (improved information access), as well as explore complementarities between these interventions. The results of this study will be of critical use to policymakers with the goal of improving agricultural productivity of female farmers in this setting, but who may face resource constraints in implementing policies to do so.
Interventions to Accelerate Varietal Turnover: Production vs. Consumption Oriented Approaches (with Gashaw Abate, Prakashan Chellattan Veettil, Beliyou Haile, Julius Juma, Berber Kramer, Catherine Ragasa, Bjorn van Campenhout, and others)
Smallholder producers throughout the developing world commonly grow old seed varieties, despite the availability of newer alternatives. One common explanation is that it can be risky for farmers to experiment with new varieties, as newer varieties are often more expensive, and farmers may be unsure of how such varieties will perform on their land. However, smallholder farmers are also often the main consumers of their production, and hence they might face additional consumption-related risks when choosing to grow a new variety (i.e. the risk that they dislike the taste/cooking quality of the new variety). In this project we compare interventions that address production-side risks (free seed trial packs) and consumption-side risks (free samples of crops produced) to adoption of new varieties. Specifically, we compare the effects of these interventions using a randomized control trial with a 2x2 matrix treatment design, where farmers either receive the seed trial packs, the sample crops, both or neither. We carry-out this design across five different countries (Ethiopia, India, Kenya, Nigeria, and Uganda) considering different crops in each setting.