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James K. Hammitt, Ph.D.

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Biography
Harvard College, Cambridge, MassachusettsAB1978Applied Mathematics
Harvard University, Cambridge, MassachusettsScM1978Applied Mathematics
Kennedy School of Government, Harvard University, Cambridge, MassachusettsMPP1981
Harvard University, Cambridge, MassachusettsPhD1988Public Policy

Overview
Professor Hammitt's research concerns the development and application of quantitative methods—including benefit-cost, decision, and risk analysis—to health and environmental policy. Topics include management of long-term environmental issues with important scientific uncertainties, such as global climate change and stratospheric-ozone depletion, evaluation of ancillary benefits and countervailing risks associated with risk-control measures, and characterization of social preferences over health and environmental risks using revealed-preference, stated-preference, and health-utility methods. He has served on six National Academies of Sciences panels, more than a dozen advisory committees to the U.S. Environmental Protection Agency and other government agencies, is a fellow of the Society for Risk Analysis, and in 2015 received the SRA’s Distinguished Achievement Award for “for extraordinary achievement in science or public policy relating to risk analysis.”

Bibliographic
Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
  1. Choma EF, Evans JS, Hammitt JK, Gómez-Ibáñez JA, Spengler JD. Assessing the health impacts of electric vehicles through air pollution in the United States. Environ Int. 2020 Nov; 144:106015. PMID: 32858467.
    Citations:    
  2. Herrera-Araujo D, Hammitt JK, Rheinberger CM. Theoretical bounds on the value of improved health. J Health Econ. 2020 Jul; 72:102341. PMID: 32531565.
    Citations:    
  3. Hammitt JK, Morfeld P, Tuomisto JT, Erren TC. Premature Deaths, Statistical Lives, and Years of Life Lost: Identification, Quantification, and Valuation of Mortality Risks. Risk Anal. 2020 Apr; 40(4):674-695. PMID: 31820829.
    Citations:    
  4. Murray BR, Kratka A, Scherr KA, Eyal N, Blumenthal-Barby J, Freedberg KA, Kuritzkes DR, Hammitt JK, Edifor R, Katz MN, Pollak KI, Zikmund-Fisher BJ, Halpern SD, Barks MC, Ubel PA. What risk of death would people take to be cured of HIV and why? A survey of people living with HIV. J Virus Erad. 2019 Apr 01; 5(2):109-115. PMID: 31191914.
    Citations:    
  5. Robinson LA, Hammitt JK, O'Keeffe L. Valuing Mortality Risk Reductions in Global Benefit-Cost Analysis. J Benefit Cost Anal. 2019; 10(Suppl 1):15-50. PMID: 32968616.
    Citations:    
  6. Rheinberger CM, Hammitt JK. Dinner with Bayes: On the revision of risk beliefs. J Risk Uncertain. 2018; 57(3):253-280. PMID: 30872897.
    Citations:    
  7. Shrime MG, Weinstein MC, Hammitt JK, Cohen JL, Salomon JA. Trading Bankruptcy for Health: A Discrete-Choice Experiment. Value Health. 2018 01; 21(1):95-104. PMID: 29304947.
    Citations: 1     Fields:    Translation:Humans
  8. Chang AY, Robinson LA, Hammitt JK, Resch SC. Economics in "Global Health 2035": a sensitivity analysis of the value of a life year estimates. J Glob Health. 2017 Jun; 7(1):010401. PMID: 28400950.
    Citations: 1     Fields:    Translation:Humans
  9. Rheinberger CM, Herrera-Araujo D, Hammitt JK. The value of disease prevention vs treatment. J Health Econ. 2016 12; 50:247-255. PMID: 27616486.
    Citations:    Fields:    Translation:HumansPHPublic Health
  10. Robinson LA, Hammitt JK, Chang AY, Resch S. Understanding and improving the one and three times GDP per capita cost-effectiveness thresholds. Health Policy Plan. 2017 Feb; 32(1):141-145. PMID: 27452949.
    Citations: 8     Fields:    Translation:Humans
  11. Tago D, Hammitt JK, Thomas A, Raboisson D. The Impact of Farmers' Strategic Behavior on the Spread of Animal Infectious Diseases. PLoS One. 2016; 11(6):e0157450. PMID: 27300368.
    Citations: 2     Fields:    Translation:HumansAnimals
  12. Sunderland EM, Driscoll CT, Hammitt JK, Grandjean P, Evans JS, Blum JD, Chen CY, Evers DC, Jaffe DA, Mason RP, Goho S, Jacobs W. Benefits of Regulating Hazardous Air Pollutants from Coal and Oil-Fired Utilities in the United States. Environ Sci Technol. 2016 Mar 01; 50(5):2117-20. PMID: 26848613.
    Citations: 2     Fields:    Translation:HumansAnimalsPHPublic Health
  13. Robinson LA, Hammitt JK. Introduction to the Special Series on Risk, Perception, and Response. Risk Anal. 2015 Oct; 35(10):1766-9. PMID: 26491991.
    Citations:    Fields:    
  14. Robinson LA, Hammitt JK. Valuing Reductions in Fatal Illness Risks: Implications of Recent Research. Health Econ. 2016 08; 25(8):1039-52. PMID: 26132383.
    Citations: 1     Fields:    Translation:Humans
  15. Robinson LA, Hammitt JK. Introduction to the Special Series on Research Synthesis: A Cross-Disciplinary Approach. Risk Anal. 2015 Jun; 35(6):963-70. PMID: 26081936.
    Citations:    Fields:    
  16. Robinson LA, Hammitt JK. Research Synthesis and the Value per Statistical Life. Risk Anal. 2015 Jun; 35(6):1086-100. PMID: 25851065.
    Citations: 1     Fields:    
  17. Tago D, Hammitt JK, Thomas A, Raboisson D. Cost assessment of the movement restriction policy in France during the 2006 bluetongue virus episode (BTV-8). Prev Vet Med. 2014 Dec 01; 117(3-4):577-89. PMID: 25458706.
    Citations: 4     Fields:    Translation:AnimalsCellsPHPublic Health
  18. Rheinberger CM, Hammitt JK. The welfare value of FDA's mercury-in-fish advisory: a dynamic reanalysis. J Health Econ. 2014 Sep; 37:113-22. PMID: 24992390.
    Citations:    Fields:    Translation:HumansAnimalsPHPublic Health
  19. Adler MD, Hammitt JK, Treich N. The social value of mortality risk reduction: VSL versus the social welfare function approach. J Health Econ. 2014 May; 35:82-93. PMID: 24699210.
    Citations: 1     Fields:    Translation:Humans
  20. Huang L, Zhou Y, Han Y, Hammitt JK, Bi J, Liu Y. Effect of the Fukushima nuclear accident on the risk perception of residents near a nuclear power plant in China. Proc Natl Acad Sci U S A. 2013 Dec 03; 110(49):19742-7. PMID: 24248341.
    Citations: 7     Fields:    Translation:Humans
  21. Zhou Y, Hammitt J, Fu JS, Gao Y, Liu Y, Levy JI. Major factors influencing the health impacts from controlling air pollutants with nonlinear chemistry: an application to China. Risk Anal. 2014 Apr; 34(4):683-97. PMID: 23998205.
    Citations: 1     Fields:    Translation:HumansPHPublic Health
  22. Hogan DR, Salomon JA, Canning D, Hammitt JK, Zaslavsky AM, Bärnighausen T. National HIV prevalence estimates for sub-Saharan Africa: controlling selection bias with Heckman-type selection models. Sex Transm Infect. 2012 Dec; 88 Suppl 2:i17-23. PMID: 23172342.
    Citations: 15     Fields:    Translation:Humans
  23. Rheinberger CM, Hammitt JK. Risk trade-offs in fish consumption: a public health perspective. Environ Sci Technol. 2012 Nov 20; 46(22):12337-46. PMID: 23110525.
    Citations: 4     Fields:    Translation:HumansAnimalsPHPublic Health
  24. Hammitt JK, Zhang Y. Combining experts' judgments: comparison of algorithmic methods using synthetic data. Risk Anal. 2013 Jan; 33(1):109-20. PMID: 22583060.
    Citations:    Fields:    Translation:Humans
  25. Roman HA, Hammitt JK, Walsh TL, Stieb DM. Expert elicitation of the value per statistical life in an air pollution context. Risk Anal. 2012 Dec; 32(12):2133-51. PMID: 22571466.
    Citations: 2     Fields:    Translation:HumansPHPublic Health
  26. Robinson LA, Hammitt JK. Behavioral economics and regulatory analysis. Risk Anal. 2011 Sep; 31(9):1408-22. PMID: 21838730.
    Citations:    Fields:    Translation:Humans
  27. Hammitt JK. Discounting health and cost-effectiveness analysis: a response to Nord. Health Econ. 2012 Jul; 21(7):878-82. PMID: 21834025.
    Citations: 1     Fields:    
  28. Haninger K, Hammitt JK. Diminishing willingness to pay per quality-adjusted life year: valuing acute foodborne illness. Risk Anal. 2011 Sep; 31(9):1363-80. PMID: 21488924.
    Citations: 2     Fields:    Translation:Humans
  29. Chahine T, Schultz B, Zartarian V, Subramanian SV, Spengler J, Hammitt J, Levy JI. Modeling geographic and demographic variability in residential concentrations of environmental tobacco smoke using national data sets. J Expo Sci Environ Epidemiol. 2011 Nov-Dec; 21(6):646-55. PMID: 21407272.
    Citations: 5     Fields:    Translation:HumansPHPublic Health
  30. Tsou MW, Liu JT, Hammitt JK. Parental age difference, educationally assortative mating and offspring count: evidence from a contemporary population in Taiwan. Biol Lett. 2011 Aug 23; 7(4):562-6. PMID: 21288936.
    Citations: 3     Fields:    Translation:Humans
  31. Neumann PJ, Cohen JT, Hammitt JK, Concannon TW, Auerbach HR, Fang C, Kent DM. Willingness-to-pay for predictive tests with no immediate treatment implications: a survey of US residents. Health Econ. 2012 Mar; 21(3):238-51. PMID: 22271512.
    Citations: 34     Fields:    Translation:Humans
  32. Hogan DR, Zaslavsky AM, Hammitt JK, Salomon JA. Flexible epidemiological model for estimates and short-term projections in generalised HIV/AIDS epidemics. Sex Transm Infect. 2010 Dec; 86 Suppl 2:ii84-92. PMID: 21106520.
    Citations: 15     Fields:    Translation:HumansPHPublic Health
  33. Rice GE, Hammitt JK, Evans JS. A probabilistic characterization of the health benefits of reducing methyl mercury intake in the United States. Environ Sci Technol. 2010 Jul 01; 44(13):5216-24. PMID: 20540573.
    Citations: 8     Fields:    Translation:HumansPHPublic Health
  34. Lee GM, Salomon JA, Gay C, Hammitt JK. Preferences for health outcomes associated with Group A Streptococcal disease and vaccination. Health Qual Life Outcomes. 2010 Mar 12; 8:28. PMID: 20226042.
    Citations: 3     Fields:    Translation:HumansCells
  35. Oken E, Kleinman KP, Belfort MB, Hammitt JK, Gillman MW. Associations of gestational weight gain with short- and longer-term maternal and child health outcomes. Am J Epidemiol. 2009 Jul 15; 170(2):173-80. PMID: 19439579.
    Citations: 73     Fields:    Translation:Humans
  36. Liu JT, Tsou MW, Hammitt JK. Willingness to pay for weight-control treatment. Health Policy. 2009 Jul; 91(2):211-8. PMID: 19167128.
    Citations: 3     Fields:    Translation:Humans
  37. Kyle JW, Hammitt JK, Lim HW, Geller AC, Hall-Jordan LH, Maibach EW, De Fabo EC, Wagner MC. Economic evaluation of the US Environmental Protection Agency's SunWise program: sun protection education for young children. Pediatrics. 2008 May; 121(5):e1074-84. PMID: 18450850.
    Citations: 16     Fields:    Translation:Humans
  38. Groot Koerkamp B, Hunink MG, Stijnen T, Hammitt JK, Kuntz KM, Weinstein MC. Limitations of acceptability curves for presenting uncertainty in cost-effectiveness analysis. Med Decis Making. 2007 Mar-Apr; 27(2):101-11. PMID: 17409361.
    Citations: 17     Fields:    Translation:Humans
  39. Prosser LA, Hammitt JK, Keren R. Measuring health preferences for use in cost-utility and cost-benefit analyses of interventions in children: theoretical and methodological considerations. Pharmacoeconomics. 2007; 25(9):713-26. PMID: 17803331.
    Citations: 37     Fields:    Translation:Humans
  40. Hammitt JK, Ibarrarán ME. The economic value of fatal and non-fatal occupational risks in Mexico City using actuarial- and perceived-risk estimates. Health Econ. 2006 Dec; 15(12):1329-35. PMID: 16929475.
    Citations:    Fields:    Translation:HumansPHPublic Health
  41. Wiener JB, Stewart RB, Hammitt JK, Hourcade JC. Madison and climate change policy. Science. 2006 Jan 20; 311(5759):335-6; author reply 335-6. PMID: 16424323.
    Citations:    Fields:    
  42. Hammitt JK, Wiener JB, Swedlow B, Kall D, Zhou Z. Precautionary regulation in Europe and the United States: a quantitative comparison. Risk Anal. 2005 Oct; 25(5):1215-28. PMID: 16297226.
    Citations:    Fields:    
  43. Zhou Y, Levy JI, Evans JS, Hammitt JK. The influence of geographic location on population exposure to emissions from power plants throughout China. Environ Int. 2006 Apr; 32(3):365-73. PMID: 16183123.
    Citations: 5     Fields:    Translation:HumansPHPublic Health
  44. Stevens G, Wilson A, Hammitt JK. A benefit-cost analysis of retrofitting diesel vehicles with particulate filters in the Mexico City metropolitan area. Risk Anal. 2005 Aug; 25(4):883-99. PMID: 16268936.
    Citations: 2     Fields:    Translation:HumansCellsPHPublic Health
  45. Liu JT, Hammitt JK, Wang JD, Tsou MW. Valuation of the risk of SARS in Taiwan. Health Econ. 2005 Jan; 14(1):83-91. PMID: 15386665.
    Citations: 5     Fields:    Translation:Humans
  46. Yokota F, Gray G, Hammitt JK, Thompson KM. Tiered chemical testing: a value of information approach. Risk Anal. 2004 Dec; 24(6):1625-39. PMID: 15660617.
    Citations: 3     Fields:    Translation:HumansAnimalsPHPublic Health
  47. Hammitt JK. Economic implications of hormesis. Hum Exp Toxicol. 2004 Jun; 23(6):267-78; discussion 279-80, 303-5. PMID: 15301153.
    Citations: 1     Fields:    Translation:HumansPHPublic Health
  48. Toy EL, Hammitt JK. Safety impacts of SUVs, vans, and pickup trucks in two-vehicle crashes. Risk Anal. 2003 Aug; 23(4):641-50. PMID: 12926558.
    Citations: 3     Fields:    
  49. Salomon JA, Weinstein MC, Hammitt JK, Goldie SJ. Cost-effectiveness of treatment for chronic hepatitis C infection in an evolving patient population. JAMA. 2003 Jul 09; 290(2):228-37. PMID: 12851278.
    Citations: 58     Fields:    Translation:Humans
  50. Cohen JT, Hammitt JK, Levy JI. Fuels for urban transit buses: a cost-effectiveness analysis. Environ Sci Technol. 2003 Apr 15; 37(8):1477-84. PMID: 12731827.
    Citations: 2     Fields:    Translation:HumansPHPublic Health
  51. Hammitt JK. Air pollution and medical care. Health Aff (Millwood). 2003 Jan-Feb; 22(1):277-8; author reply 278-9. PMID: 12528860.
    Citations:    Fields:    Translation:HumansPHPublic Health
  52. Walker KD, Catalano P, Hammitt JK, Evans JS. Use of expert judgment in exposure assessment: part 2. Calibration of expert judgments about personal exposures to benzene. J Expo Anal Environ Epidemiol. 2003 Jan; 13(1):1-16. PMID: 12595879.
    Citations: 1     Fields:    Translation:HumansPHPublic Health
  53. Salomon JA, Weinstein MC, Hammitt JK, Goldie SJ. Empirically calibrated model of hepatitis C virus infection in the United States. Am J Epidemiol. 2002 Oct 15; 156(8):761-73. PMID: 12370165.
    Citations: 32     Fields:    Translation:HumansPHPublic Health
  54. Hofstetter P, Hammitt JK. Selecting human health metrics for environmental decision-support tools. Risk Anal. 2002 Oct; 22(5):965-83. PMID: 12442992.
    Citations: 6     Fields:    Translation:Humans
  55. Hofstetter P, Bare JC, Hammitt JK, Murphy PA, Rice GE. Tools for comparative analysis of alternatives: competing or complementary perspectives? Risk Anal. 2002 Oct; 22(5):833-51. PMID: 12442983.
    Citations: 1     Fields:    Translation:Humans
  56. Hammit JK. QALYs versus WTP. Risk Anal. 2002 Oct; 22(5):985-1001. PMID: 12442993.
    Citations: 8     Fields:    Translation:Humans
  57. Corso PS, Hammitt JK, Graham JD, Dicker RC, Goldie SJ. Assessing preferences for prevention versus treatment using willingness to pay. Med Decis Making. 2002 Sep-Oct; 22(5 Suppl):S92-101. PMID: 12369235.
    Citations: 9     Fields:    Translation:HumansPHPublic Health
  58. Richards RJ, Hammitt JK. Timing of prophylactic surgery in prevention of diverticulitis recurrence: a cost-effectiveness analysis. Dig Dis Sci. 2002 Sep; 47(9):1903-8. PMID: 12353827.
    Citations: 23     Fields:    Translation:Humans
  59. Levy JI, Carrothers TJ, Tuomisto JT, Hammitt JK, Evans JS. Assessing the public health benefits of reduced ozone concentrations. Environ Health Perspect. 2001 Dec; 109(12):1215-26. PMID: 11748028.
    Citations: 18     Fields:    Translation:HumansPHPublic Health
  60. Morris J, Hammitt JK. Using life expectancy to communicate benefits of health care programs in contingent valuation studies. Med Decis Making. 2001 Nov-Dec; 21(6):468-78. PMID: 11760104.
    Citations: 2     Fields:    Translation:Humans
  61. Weinstein MC, Toy EL, Sandberg EA, Neumann PJ, Evans JS, Kuntz KM, Graham JD, Hammitt JK. Modeling for health care and other policy decisions: uses, roles, and validity. Value Health. 2001 Sep-Oct; 4(5):348-61. PMID: 11705125.
    Citations: 48     Fields:    Translation:HumansPHPublic Health
  62. Neumann PJ, Hammitt JK, Mueller C, Fillit HM, Hill J, Tetteh NA, Kosik KS. Public attitudes about genetic testing for Alzheimer's disease. Health Aff (Millwood). 2001 Sep-Oct; 20(5):252-64. PMID: 11558711.
    Citations: 25     Fields:    Translation:Humans
  63. Brand KP, Catalano PJ, Hammitt JK, Rhomberg L, Evans JS. Limitations to empirical extrapolation studies: the case of BMD ratios. Risk Anal. 2001 Aug; 21(4):625-40. PMID: 11726017.
    Citations: 1     Fields:    Translation:HumansAnimals
  64. Williams PR, Hammitt JK. Perceived risks of conventional and organic produce: pesticides, pathogens, and natural toxins. Risk Anal. 2001 Apr; 21(2):319-30. PMID: 11414540.
    Citations: 4     Fields:    Translation:HumansPHPublic Health
  65. Hammitt JK, Harvey CM. Equity, efficiency, uncertainty, and the mitigation of global climate change. Risk Anal. 2000 Dec; 20(6):851-60. PMID: 11314734.
    Citations: 2     Fields:    
  66. Gray GM, Hammitt JK. Risk/risk trade-offs in pesticide regulation: an exploratory analysis of the public health effects of a ban on organophosphate and carbamate pesticides. Risk Anal. 2000 Oct; 20(5):665-80. PMID: 11110213.
    Citations: 1     Fields:    Translation:HumansPHPublic Health
  67. Williams PR, Hammitt JK. A comparison of organic and conventional fresh produce buyers in the Boston area. Risk Anal. 2000 Oct; 20(5):735-46. PMID: 11110219.
    Citations: 1     Fields:    Translation:HumansAnimals
  68. Liu JT, Hammitt JK, Wang JD, Liu JL. Mother's willingness to pay for her own and her child's health: a contingent valuation study in Taiwan. Health Econ. 2000 Jun; 9(4):319-26. PMID: 10862075.
    Citations: 9     Fields:    Translation:Humans
  69. Levy JI, Hammitt JK, Spengler JD. Estimating the mortality impacts of particulate matter: what can be learned from between-study variability? Environ Health Perspect. 2000 Feb; 108(2):109-17. PMID: 10656850.
    Citations: 32     Fields:    Translation:HumansPHPublic Health
  70. Hammitt JK, Belsky ES, Levy JI, Graham JD. Residential building codes, affordability, and health protection: a risk-tradeoff approach. Risk Anal. 1999 Dec; 19(6):1037-58. PMID: 10765445.
    Citations: 1     Fields:    Translation:Humans
  71. Liu JL, Liu JT, Hammitt JK, Chou SY. The price elasticity of opium in Taiwan, 1914-1942. J Health Econ. 1999 Dec; 18(6):795-810. PMID: 10847935.
    Citations: 5     Fields:    Translation:Humans
  72. Bosch JL, Hammitt JK, Weinstein MC, Hunink MG. Estimating general-population utilities using one binary-gamble question per respondent. Med Decis Making. 1998 Oct-Dec; 18(4):381-90. PMID: 10372580.
    Citations: 4     Fields:    Translation:HumansCTClinical Trials
  73. Richards RJ, Hammitt JK, Tsevat J. Finding the optimal multiple-test strategy using a method analogous to logistic regression: the diagnosis of hepatolenticular degeneration (Wilson's disease). Med Decis Making. 1996 Oct-Dec; 16(4):367-75. PMID: 8912298.
    Citations: 2     Fields:    Translation:Humans
  74. Hammitt JK. Discounting health increments. J Health Econ. 1993 Apr; 12(1):117-20. PMID: 10126488.
    Citations: 2     Fields:    Translation:Humans
  75. Hammitt JK. Risk perceptions and food choice: an exploratory analysis of organic- versus conventional-produce buyers. Risk Anal. 1990 Sep; 10(3):367-74. PMID: 2173046.
    Citations: 1     Fields:    Translation:PHPublic Health
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Funded by the NIH National Center for Advancing Translational Sciences through its Clinical and Translational Science Awards Program, grant number UL1TR002541.