Working Papers and Ongoing Projects

Working papers: 

"Meta-analysis and Public Policy: Reconciling the Evidence on Deworming" (2022). With Joan Hamory Hicks, Eric Hsu, Michael Kremer, Ricardo Maertens, Edward Miguel, and Witold Wiecek. NBER working paper 22382. (Previous version circulated as "Does Mass Deworming Affect Child Nutrition? Meta-Analysis, Cost Effectiveness, and Statistical Power" CEPR discussion paper 11458; World Bank Policy Research Working Paper 7921.)

"Countering Misinformation in the Global South" (2022). With Jeremy Bowles, Horacio Larreguy, Shelley Liu, and John Marshall.

"The Impact of Ethiopia's Road Sector Development Program: Evidence from Satellite Data" (2022). With Simon Alder, Alice Duhaut, Rob Marty, and Ariana Vaisey. World Bank Policy Research Working Paper 10000. (World Bank blog post summary here)

"Access to health services, food, and water during an active conflict: Evidence from Ethiopia" (2022). With Kibrom Abay, Mehari Abay, Guush Berhane, Jordan Chamberlin and Kibrom Tafere. Under review. 

"Designing responsive performance metrics for health care providers: Evidence from the Estonian Quality Bonus Scheme" (2021). With Benjamin Daniels, Meyhar Mohammed, Daniel Rogger and Katre Väärsi.

Ongoing projects:

Evaluation of Service Delivery Reform for Maternal and Newborn Health in Kakamega County, Kenya. With Margaret Kruk. This project is supported by the Bill and Melinda Gates Foundation.

The Political Origins of Primary Health Care Expansions in Developing Countries. This is a comparative, multi-country project; support for pilot work in Ethiopia and Nigeria has been provided by a grant from the HSPH Dean's Fund for Scientific Advancement. 

Countering COVID-19 Misinformation Using WhatsApp. With Jeremy Bowles, Horacio Larreguy, Shelly Liu, and John Marshall.   This project is funded by grants from the Harvard Data Science Initiative Trust in Science program and the Harvard Center for African Studies.  Trial registration here.

Impact evaluation of Estonia's Enhanced Care Management primary health care reform. With Daniel Rogger and Benjamin Daniels. Trial registration here.

Impact evaluation of the medium-term effects of the Health Villages and Schools WASH program in the Democratic Republic of Congo. With Aidan Coville, Eric Mvukiyehe, and John Quattrochi. Evaluation of short-run program effects can be found here.

Data and code:

Alder, Croke, Duhaut, Marty, and Vaisey (2022), "The Impact of Ethiopia's Road Sector Development Program: Evidence from Satellite Data", replication package.  

Croke (2021), "The Impact of Health Programs on Political Opinion: Evidence from Malaria Control in Tanzania", replication package

Croke and Atun (2019) "The long run impact of early childhood deworming on numeracy and literacy: Evidence from Uganda", replication package

Croke, Grossman, Larreguy, and Marshall (2016), "Deliberate disengagement: How education can decrease political participation in electoral authoritarian regimes", replication package.