In recent years, considerable effort in the field of operations research has been paid to optimizing airline operations, including the logistics of an airline’s fleet of aircraft. We focus on the problem of aircraft routing, which involves generating and selecting a particular route for each aircraft of a sub-fleet that is already assigned to a set of feasible sequences of flight legs. Similar ...

In recent years, considerable effort in the field of operations research has been paid to optimizing airline operations, including the logistics of an airline’s fleet of aircraft. We focus on the problem of aircraft routing, which involves generating and selecting a particular route for each aircraft of a sub-fleet that is already assigned to a set of feasible sequences of flight legs. Similar ...

To better understand the Medicaid managed care market during a period of rapid change, we developed a new data set that links Medicaid enrollment data with health maintenance organization (HMO) industry data for 1993-1996 to analyze Medicaid enrollment in full-risk health plans. Nearly half of the Medicaid enrollees in a fully capitated managed care arrangement were in plans in which Medicaid m...

With nearly a quarter of the population enrolled in Health Maintenance Organizations (HMOs) the Mineapolis/St. Paul metropolitan area provides a unique opportunity for studies dealing with the effects of prepaid health plans on the health care marketplace. This study explores one aspect of that market; discounts obtained by HMOs for hospital inpatient service. Using information gathered from st...

The Tax Equity and Fiscal Responsibility Act (TEFRA) of 1982 made it more attractive for health maintenance organizations (HMOs) and other competitive medical plans to enter into risk contracts with Medicare. Since the start of the TEFRA program in April 1985, more than 160 HMOs have had risk contracts with Medicare under the program. An investigation of factors associated with TEFRA risk-marke...

This final rule amends the regulations established by a March 27, 1996, final rule with comment period. The regulations govern physician incentive plans operated by Federally-qualified health maintenance organizations and competitive medical plans contracting with the Medicare program, and certain health maintenance organizations and health insuring organizations contracting with the Medicaid p...