I work in economics, causal machine learning and marketplace design. I have previously been a senior principal economist at Amazon (where I was part of the Pharmacy leadership team and worked on the design of RxPass and offering customers insurance price estimates, among other things), senior principal researcher at Microsoft Research (where Vasilis Syrgkanis and I co-led the ALICE group that builds and maintains EconML) and associate professor of economics at Harvard. Here is my CV. You can also find me on LinkedIn and Google Scholar.