Stuart V. Craig
The Wharton School
The University of Pennsylvania
3641 Locust Walk
Philadelphia, PA 19104
Institutional Affiliation: University of Pennsylvania
NBER Working Papers and Publications
|October 2018||How Important Is Price Variation Between Health Insurers?|
with Keith Marzilli Ericson, Amanda Starc: w25190
Prices negotiated between payers and providers affect a health insurance contract's value via enrollees' cost-sharing and self-insured employers' costs. However, price variation across payers is hard to observe. We measure negotiated prices for hospital-payer pairs in Massachusetts and characterize price variation. Between-payer price variation is similar in magnitude to between-hospital price variation. Administrative-services-only contracts, in which insurers do not bear risk, have higher prices. We model negotiation incentives and show that contractual form and demand responsiveness to negotiated prices are important determinants of negotiated prices.
|August 2018||Mergers and Marginal Costs: New Evidence on Hospital Buyer Power|
with Matthew Grennan, Ashley Swanson: w24926
We estimate the effects of horizontal mergers on marginal cost efficiencies – an ubiquitous merger justification – using data containing supply purchase orders from a large sample of US hospitals 2009-2015. The data provide a level of detail that has been difficult to observe previously, and a variety of product categories that allows us to examine economic mechanisms underlying “buyer power.” We find that merger target hospitals save on average $176 thousand (or 1.5 percent) annually, driven by geographically local efficiencies in price negotiations for high-tech “physician preference items.” We find only mixed evidence on savings by acquirers.
|December 2015||The Price Ain’t Right? Hospital Prices and Health Spending on the Privately Insured|
with Zack Cooper, Martin Gaynor, John Van Reenen: w21815
We use insurance claims data covering 28 percent of individuals with employer-sponsored health insurance in the US to study the variation in health spending on the privately insured, examine the structure of insurer-hospital contracts, and analyze the variation in hospital prices across the nation. Health spending per privately insured beneficiary differs by a factor of three across geographic areas and has a very low correlation with Medicare spending. For the privately insured, half of the spending variation is driven by price variation across regions and half is driven by quantity variation. Prices vary substantially across regions, across hospitals within regions, and even within hospitals. For example, even for a near homogenous service such as lower-limb MRIs, about a fifth of the to...
Published: Zack Cooper & Stuart V Craig & Martin Gaynor & John Van Reenen, 2019. "The Price Ain’t Right? Hospital Prices and Health Spending on the Privately Insured*," The Quarterly Journal of Economics, vol 134(1), pages 51-107.