NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

NBER Publications by Heidi Williams

Working Papers and Chapters

December 2008Estimating Marginal Returns to Medical Care: Evidence from At-Risk Newborns
with Douglas Almond, Joseph J. Doyle, Jr., Amanda E. Kowalski: w14522
May 2005Advanced Purchase Commitments for a Malaria Vaccine: Estimating Costs and Effectiveness
with Ernst R. Berndt, Rachel Glennerster, Michael R. Kremer, Jean Lee, Ruth Levine, Georg Weizsacker: w11288
n/aComment on "Aging and Death under a Dollar a Day"
with Amitabh Chandra
in Research Findings in the Economics of Aging, David A. Wise
Comment on "Income, Aging, Health and Well-Being around the World: Evidence from the Gallup World Poll"
with Amitabh Chandra
in Research Findings in the Economics of Aging, David A. Wise
Incentivizing Innovation: Adding to the Toolkit
with Michael Kremer
in Innovation Policy and the Economy, Volume 10, Josh Lerner and Scott Stern, editors

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