Heidi Williams is the Orville E. Dryfoos Professor in Economics and Public Affairs at Dartmouth College. Her teaching and research focus on understanding how policy changes affect innovation, productivity, and economic growth. Heidi is a Research Associate at the National Bureau of Economic Research (NBER), and, together with Ben Jones, she co-directs the NBER's Innovation Policy working group. She is currently lead editor of the Journal of Economic Perspectives, and works on contract as a research advisor with the Congressional Budget Office. Heidi is Director of Science Policy at the Institute for Progress and a nonresident senior fellow at the Hutchins Center on Fiscal and Monetary Policy at Brookings.  Together with Paul Niehaus, she co-chairs J-PAL’s Science for Progress Initiative. Heidi received her AB in mathematics from Dartmouth College in 2003, her MSc in development economics from Oxford University in 2004, and her PhD in economics from Harvard in 2010. She is a Fellow of the American Academy of Arts and Sciences and of the Econometric Society, and is the recipient of a MacArthur Foundation Fellowship (2015), an Alfred P. Sloan Research Fellowship (2015), and the ASHEcon Medal (2021). She has also been recognized for her undergraduate teaching, graduate teaching, and graduate advising.