Heidi Williams

Publications

The More We Die, The More We Sell? A Simple Test of the Home-Market Effect
With Arnaud Costinot, Dave Donaldson, and Margaret Kyle
Accepted, Quarterly Journal of Economics
NBER working paper #22538

Who Profits from Patents? Rent-Sharing at Innovative Firms
With Patrick Kline, Neviana Petkova, and Owen Zidar
Accepted, Quarterly Journal of Economics
NBER working paper #25245

How Do Patents Affect Follow-on Innovation? Evidence from the Human Genome
With Bhaven Sampat
2019, American Economic Review 109(1): 203-236
Copyright 2019, American Economic Association
NBER working paper #21666
NIH Public Access PMC6317741
Online appendix

How Do Patents Affect Research Investments?
2017, Annual Reviews of Economics 9: 441-469
Copyright 2017, Annual Reviews
NBER working paper #23088
NIH Public Access PMC5664960
Final published version

Adjusting Risk Adjustment: Accounting for Variation in Diagnostic Intensity
With Amy Finkelstein, Matthew Gentzkow, and Peter Hull
2017, New England Journal of Medicine 376(7): 608-610
Copyright 2017, NEJM Group
NIH Public Access PMC5380362
Supplementary Appendix 1
Supplementary Appendix 2
Replication code

Sources of Geographic Variation in Health Care: Evidence from Patient Migration
With Amy Finkelstein and Matthew Gentzkow
2016, Quarterly Journal of Economics 131(4): 1681-1726
Copyright 2016, MIT Press
NBER working paper #20789
NIH Public Access PMC5243120
Online appendix
Replication code

Why is Infant Mortality Higher in the US Than in Europe?
With Alice Chen and Emily Oster
2016, American Economic Journal: Economic Policy 8(2): 89-124
Copyright 2016, American Economic Association
NBER working paper #20525
NIH Public Access PMC4856058

Paying on the Margin for Medical Care: Ev idence from Breast Cancer Treatments
With Liran Einav and Amy Finkelstein
2016, American Economic Journal: Economic Policy 8(1): 52-79
Copyright 2016, American Economic Association
NBER working paper #20226
NIH Public Access PMC4758371
Online appendix

Do Firms Underinvest in Long-Term Research? Evidence from Cancer Clinical Trials
With Eric Budish and Benjamin Roin
2015, American Economic Review 105(7): 2044-2085
Copyright 2015, American Economic Association
NBER working paper #19430
NIH Public Access PMC4557975
Online appendix
Data construction scripts
Awarded the Kauffman/iHEA Award for Health Care Entrepreneurship and Innovation Research
Awarded the iHEA Kenneth J. Arrow Award

Intellectual Property Rights and Innovation: Evidence from the Human Genome
2013, Journal of Political Economy 121(1): 1-27
Copyright 2013, University of Chicago Press
NBER working paper #16213
NIH Public Access PMC3955392
Online appendix

Estimating Marginal Returns to Medical Care: Evidence from At-Risk Newborns
With Douglas Almond, Joseph Doyle, and Amanda Kowalski
2010, Quarterly Journal of Economics 125(2): 591-634
Copyright 2010, MIT Press
NBER working paper #14522
NIH Public Access PMC2903901
Online appendix
Reply to Barreca et al.; 2011, Quarterly Journal of Economics 126(4): 2125-2131
Awarded the 2010 HCUP Outstanding Article of the Year award
Awarded the 2011 Garfield Economic Impact Award