A comparison of alternative methods of updating input-output coefficients

In recent years there has been a growing number of input-output models of economies ranging in scale from the rural to the national. While offering invaluable insights into the interaction of sectors within an economy, the input-output model suffers from the fact that its coefficient values are altered over time due particularly to technological change. Two of the prominent techniques designed to update these technical coefficients, the RAS and linear programming methods, are compared herein with regard to changes in U.S. national coefficients between 1963 and 1967. Suggestions for improvements to the latter method are outlined.     

The real action in health care

It's not taking place in the White House or Congress. The show to watch is the boisterous, free-market affair, precipitated by employers fed up with rising medical costs, and carried on by insurers and HMOs scrapping for turf.     

Effective alliance--hospital partnering: beyond price

By looking beyond alliances and groups as simply a "vendor" of group purchasing contracts, a hospital can realize significant additional value beyond acquisition price. Doing so takes an attitude conducive to partnership on both sides. When this occurs, the value delivered from these services can often exceed the savings from the group contracts themselves.