Research Summary
Research Summary
Competitive Strategy
Description
Anita M. McGahan and Michael E. Porter and are completing a series of statistical papers on the sources of company and industry profitability. Based on a large new database on the profitability of U.S. business segments between 1981 and 1994, their research examines topics such as the relative importance of industry; business segment positioning; corporate parent effects on superior or lagging profitability; the persistence of profit differences over time; and how high and low performers differ along such dimensions.