Previous sports studies on competitive balance have used many different economic tools to determine whether a league is balanced or not. In this paper the Herfindahl- Hirschman index is used to measure competitive balance in the National Hockey League. This study was done using the year before the lockout (2003-2004) as well as every year post lockout up to last year (2010-2011) in hopes of seeing whether competitive balance in the National Hockey League has increased since the 2004-2005 lockout. The numbers show that since the lockout competitive balance has increased in the National Hockey League with the major factors being offensive talent, defensive talent, and the lockout.
Includes bibliographical references.