Research

Working Papers (Authorship is Alphabetical)

  1. Cooper Z, Doyle JJ, Graves JA, Gruber J. Do higher-priced hospitals deliver higher-quality care? NBER Working Paper No. 28909, 2022. Reject & Resubmit, Journal of Political Economy. PDF

Peer-Reviewed Economics Research (Authorship is Alphabetical)

  1. Cooper Z, Gibbons S, Jones S, McGuire A. Does hospital competition save lives? evidence from the English NHS patient choice reforms. The Economic Journal. 2011;121(554):228-260. PDF
  2. Cooper Z, Gibbons S, Skellern M. Does competition from private surgical centers improve hospitals’ performance? evidence from the English National Health Service. Journal of Public Economics. 2018;166:63-80. PDF
  3. Cooper Z, Craig S, Gaynor M, Van Reenen J. The price ain’t right? hospital prices and health spending on the privately insured. The Quarterly Journal of Economics. 2018;134(1):51-107. PDF
  4. Cooper Z, Scott Morton F, Shekita N. Surprise! out-of-network billing for emergency care in the United States. Journal of Political Economy. 2020;128(9):3626-3667. PDF
  5. Chernew M, Cooper Z, Larsen Hallock E, Scott Morton F. Physician agency, consumerism, and the consumption of lower-limb MRI scans. Journal of Health Economics. 2021;76(C):40-58. PDF
  6. Cooper Z, Kowalski AE, Powell EN, Wu J. Politics and health care spending in the United States: evidence from the passage of the 2003 Medicare Modernization Act. Journal of Health Economics (conditionally accepted) PDF
  7. Brot-Goldberg Z, Cooper Z, Craig SV, Klarnet L. Is There Too Little Antitrust Enforcement in the US Hospital Sector? American Economic Review: Insights (conditionally accepted)

Peer-Reviewed Medical and Health Policy Research

  1. Cooper Z,McGuire A, Jones S, Le Grand J. Equity, waiting times, and NHS reforms. British Medical Journal. 2009;339:3264-3271. PDF
  2. Dodson JA, Wang Y, Murugiah K, Dharmajan K,Cooper Z, Hashim S, Nuti SV, Spatz E, Desai H, Krumholz H. National trends in hospital readmissions rates among Medicare fee-for-service survivors of mitral valve surgery, 1999-2010. PLos One. 2015; 10: 132-40. PDF
  3. Murugian K, Wang, Y, Dodson JA, Nuti S, Dharmarajan K, Ranasinghe I,Cooper Z, Krumholz HM. Trend in hospitalizations among Medicare survivors of Aortic valve replacement in United States, 1990-2010. Annals of Thoracic Surgery. 2015; 99: 509-517. PDF
  4. Cooper Z,Scott Morton F. Out-of-network emergency-physician bills: an unwelcome surprise. New England Journal of Medicine. 2016;375(20):1915-1918. PDF
  5. Cooper Z, Craig S, Gray C, Gaynor M, Van Reenan J. Variation in health spending growth for the privately insured from 2007 to 2014. Health Affairs. 2019;38(2):230-236. PDF
  6. Cooper Z, Craig S, Gaynor M, Harish N, Krumholz H, Van Reenen J. Hospital prices grew substantially faster than physician prices from 2007 to 2014. Health Affairs. 2019;38(2):184-189. PDF
  7. Cooper Z,Nguyen H, Shekita N, Scott Morton F. Out-of-network billing and negotiated payments for hospital-based physicians. Health Affairs. 2019;39(1):24-32. PDF
  8. Cooper Z, Han J, Mahoney N. Hospital lawsuits over unpaid bills increased by 37% in Wisconsin from 2001 to 2018. Health Affairs. 2021;40(12):1830-1835. PDF
  9. Cooper Z, Stiegman O, Ndumele C, Staiger B, Skinner J. Geographical variation in health spending across the US among privately insured individuals and enrollees in Medicaid and Medicare. JAMA Open. 2022;5(7):1-11. PDF

Non-Peer-Reviewed Articles and Commentaries (Authorship is Alphabetical)

  1. Charlesworth A, Cooper Z. Making competition work in the English NHS: The case for maintaining regulated prices. Journal of Health Services Research and Policy. 2011;16(4):193-194. PDF
  2. Bloom N, Cooper Z, Gaynor M, Gibbons S, Jones S, McGuire A, Moreno-Serra R, Propper C, Van Van Reenen J, Seiler S. In defense of our research on competition in England National Health Service. The Lancet. 2011;378(9089):2064-2065. PDF
  3. Le Grand J, Cooper Z. Framing health reform. Health Economics, Policy and Law. 2013;8(2):251-257. PDF
  4. Cooper Z, Scott Morton F. Authors reply: Facts matter. New England Journal of Medicine. 2017;376(9):899-900. DOI: 10.1056/NEJMc1700368.
  5. Cooper Z, Scott Morton F. 1% steps for health care reform: Implications for health care policy and for researchers. Health Services Research. 2021;56(3):346-349. 1. DOI: 10.1111/1475-6773.13658.