I am an economist at the University of Chicago, where I work as the Evidence Synthesis and Research Lead with the Development Innovation Lab and the Innovation Commission for Climate Change, Food Security, and Agriculture. I’m interested broadly in development and environmental economics, industrial organization, and applied econometrics. I completed my PhD in Agricultural & Applied Economics at the University of Wisconsin-Madison.

Click here to download my full CV.

Google Scholar

Research


Peer-Reviewed Publications
Recognizing a good deal: short term subsidies and the dynamics of public service use (2025), Journal of Environmental Economics and Management
Journal Link Working Paper Link (WP Version: December 2024)

I study the dynamics of household adoption of a public service in response to short-term subsidies. I exploit spatial variation in exposure to subsidies which induced consumers to use a publicly-provided matching platform for sanitation services in Dakar, Senegal. Using platform administrative data, I show that neighborhoods exposed to short-term subsidies are significantly more likely to use the platform after subsidies end, but this effect declines gradually to zero over time. Following a subsequent city-wide subsidy campaign, increased adoption re-emerges in previously-subsidized neighborhoods before declining again. The pattern of decline and re-emergence shows that short-term subsidies can have persistent effects, but sustaining these effects may require repeated intervention.

Relaxing multiple agricultural productivity constraints at scale (2025), Journal of Development Economics
with: Maya Duru • Kim Siegal • Emilia Tjernström
Journal Link (open access)

No single constraint can explain the stagnant agricultural productivity growth in sub-Saharan Africa. Most interventions that relax individual barriers to productivity have delivered disappointing results. We evaluate an at-scale program that targets several productivity constraints with a bundled intervention, using a randomized controlled trial in western Kenya. Program participation increases maize yields by 26%, total maize output by 24%, and profits by 17%. While we cannot directly test whether the program’s success is due to its bundled nature, we find patterns in the data that are consistent with this hypothesis.

Spillovers without social interactions in urban sanitation (2024), American Economic Journal: Applied Economics
with: Molly LipscombLaura SchechterJessica Zhu
Journal Link Working Paper Link (WP version: October 2022)

We run a randomized controlled trial coupled with lab-in-the-field social network experiments in urban Dakar. Decision spillovers and health externalities play a large role in determining uptake of the sanitation technology, with decision spillovers being largest among households that don’t receive significant subsidies. There is no evidence that the spillovers are explained by social forces in general, nor that they are explained by specific social mechanisms such as learning from others, social pressure, or reciprocity. We do find evidence of a fourth, non-social, mechanism impacting decisions: increasing health benefits. As more neighbors adopt the sanitary technology, it becomes more worthwhile for other households to adopt as well.

Privatization of public goods: Evidence from the sanitation sector in Senegal (2023), Journal of Development Economics
with: Jared GarsJean-François HoudeMolly LipscombLaura Schechter
Journal Link (open access)

Blog post: VoxDev

Privatization of a public good (the management of sewage treatment centers in Dakar, Senegal) leads to an increase in the productivity of downstream sewage dumping companies and a decrease in downstream prices of the services they provide to households. We use the universe of legal dumping of sanitation waste from May 2009 to May 2018 to show that legal dumping increased substantially following privatization–on average an increase of 74%, or an increase of about 1640 trips to treatment centers each month. This is due to increased productivity of all trucks, not just those associated with the company managing the privatized treatment centers. Household-level survey data shows that downstream prices of legal sanitary dumping decreased by 5% following privatization, and DHS data shows that diarrhea rates among children under five decreased in Dakar relative to secondary cities in Senegal following privatization with no similar effect on respiratory illness as a placebo.

Measuring willingness to pay for reliable electricity: evidence from Senegal (2021), World Development
with: Agnieszka Postepska • Leopold Sarr
Journal Link (open access)

The reform of energy subsidies in Iran: The role of cash transfers (2015), Emerging Markets Finance and Trade
with: Djavad Salehi-Isfahani • Bryce Wilson Stucki
Journal Link


Working Papers
Flexible contracting and quality upgrading under market volatility: experimental evidence from Senegal
with: Tanguy BernardOuambi Yameogo
(Revise & Resubmit, Journal of Development Economics)
Working Paper Link (August 2024)

World Bank Development Impact BlogNOVAFRICA Development Economics Job Market Talks Podcast

We conduct a randomized experiment with groundnut producers in Senegal to address barriers to managing food safety and complying with international quality standards. We offer a bundled contract combining credit, extension, and a price premium guarantee to encourage use of a new food safety technology. The contract is flexible regarding sales of output: while cooperatives offering the contract seek to aggregate members’ output, farmers can seize higher price opportunities when they exist. We find that producers randomly offered the contract are significantly more likely to purchase the technology, sell more output via cooperatives, and are more likely to comply with international food safety standards in areas where quality would otherwise be lower due to agro-climatic conditions. In a subsequent season, demand for the technology falls and producers revert to selling more output on the spot market when a price premium guarantee is no longer available.

Does others' health count for peanuts? Health, market returns, and pro-sociality
with: Gashaw AbateTanguy BernardFatou Fall
(Under review)
Working Paper Link (April 2025)

Individuals often make decisions considering both private returns and welfare impacts on others. Food safety decisions by smallholder agricultural producers exemplify this choice, particularly in low-income countries where farmers often consume some of the food crops they produce and sell or donate the rest. We conduct a lab-in-the-field experiment with agricultural producers in Senegal to study the decision to invest in food safety information, exogenously varying the degree of private returns (monetary or health-wise) and welfare impacts on others. Producers are willing to pay real money for food safety information even absent the potential for private returns, but willingness to pay increases with the potential for private returns. A randomized information treatment significantly increases willingness to pay in all scenarios. Our results shed light on the complex interplay between altruism and economic decisions in the presence of externalities, and point to the potential of timely and targeted information to address food safety issues.

Using market mechanisms to improve sanitation at scale
with: Jared Gars • Shoshana Griffith • Jean-François HoudeMolly Lipscomb • Mbaye Mbeguere • Sarah Nehrling • Laura SchechterJessica Zhu
(draft available upon request)


Work in Progress
Sustainable spillovers: the health and environmental impacts of switching from generators to solar energy
with: Lori BeamanR SubramanianEmilia Tjernström
(Pilot in progress)

The compounded effects of COVID-19 and other crises on SMEs in Burkina Faso
Credit for climate change: Promoting and scaling asset-collateralized loans for water tanks
with: Kevin CarneyTomoko HarigayaMichael Kremer
(RCT in progress)

Project summary: PxD blog

Better borrowing to promote access to water and improve dairy farming in Kenya
with: Suleiman AsmanKevin CarneyMichael KremerGautam Rao
(RCT in progress)

Quality and competition in the market for agricultural inputs
Measurement error, validation data, and program evaluation
Pricing complexity and consumer behavior: evidence from a lab experiment

Policy Publications
Evidence Review for Food Security, Nutrition, and Climate-Resilience Interventions (2024)
with: Murphy, K., Rudder, J., Cappucci, M., Cherian M., Elmera, C., Fundukova, L., Kaiser-Tedesco, A., Ortiz-Riomalo, A., Puri, J., Salas, I., Songsermsawas, T.

Press Appearances

"The Poop Cartel," Planet Money (Episode 855, July 25, 2018); Goats and Soda / All Things Considered (July 27, 2018)




Custom built with Hugo. Hosted by Netlify.