Siran M. Koroukian

We estimate price regressions for surgical procedures used to treat colon cancer, a leading cause of cancer mortality. Using a claims database for self-insured employers, we focus on transaction prices, rather than more commonly available billing data that do not reflect actual payments made....

The paper examines price discounting by health maintenance organizations and preferred provider organizations in markets for hospital services. Our empirical analysis focuses on transaction prices for angioplasty, which is a relatively common procedure, with well defined 'product' characteristics....

It is generally assumed that managed care has been successful at capturing discounts from medical providers, but the implications have been a matter of debate. Critics argue that managed care organizations attain savings by reducing intensity of services, while others have argued that savings are...