Hospital Market Concentration in New Hampshire
This policy brief provides an overview of hospital market concentration in New Hampshire. It begins by describing how the degree of market concentration is measured by a metric called a Herfindahl-Hirschman Index (HHI) and how it is applied to local hospital markets. The policy brief then provides estimates of this HHI measure for New Hampshire’s hospital markets by examining the variation within New Hampshire and how the degree of market concentration within New Hampshire’s local markets has changed over time. It concludes by comparing the levels and trends of New Hampshire’s hospital market concentration to surrounding states and the U.S. overall.
