This is a short bio. I also have a “working in public” doc, have a look at it if you want to learn about my projects!

I am a researcher working on applied problems in global health, epidemiology, and development economics, with a PhD in statistics.

I’m a Consulting Director at Development Innovation Lab at University of Chicago, working with the lab’s founder and Nobel prize winner Michael Kremer on studies of water quality interventions and leading the lab’s other statistical work. I am also a Non-resident Research Fellow at Centre For Global Development and a Senior Fellow at Institute for Progress.

Most of my own research is independently funded by a fellowship from Coefficient Giving (formerly Open Philanthropy). I focus on using statistical methods to better support decision making in health and development. I have been doing some meta-scientific research throughout 2025 and 2026, working with Andrew Gelman and Erik van Zwet. I maintain an open-source meta-dataset of 11+ million empirical research results called BEAR. See more current interest in the working in public doc at the top of this page.

In health, I am particularly interested in vaccines, including research on fractional dosing of vaccines, accelerating COVID vaccine supply, and supporting human challenge trials (as an advisor to 1Day Sooner). For my work on COVID I was awarded an Emergent Ventures prize.

As a consultant at Certara (2014-2022) I worked on all stages of drug development, with focus on improving Bayesian modelling techniques in predicting real-world effectiveness of treatments, health technology assessment, and epidemiological modelling.

You can find me on Twitter, follow posts from this site in an RSS reader, or find me on LinkedIn (brrr). I also sometimes write on trials on Clinical Trials Abundance blog and other stuff on Andrew Gelman’s blog.