The Open Sports Sciences Journal




ISSN: 1875-399X ― Volume 12, 2019

Are NBA Policies that Promote Long-Term Competitive Balance Effective? What is the Price?



Julio del Corral1, *, Jorge García-Unanue2, Fernando Herencia-Quintanar1
1 University of Castilla-La Mancha, Facultad de Derecho y Ciencias Sociales, Ronda de Toledo s/n, 13071, Ciudad Re-al (Ciudad Real), Spain
2 University of Castilla-La Mancha, Grupo IGOID, Avda. Carlos III s/n, 45071, Toledo (Toledo), Spain

Abstract

This paper examines competitive balance in the most prominent basketball league in the world: the NBA. Two types of graphs are used. First, long-term competitive balance is studied based on actual positions achieved by the teams on the Regu-lar Season. On the other hand, the competitive balance levels for each season are analyzed using sport betting odds data and through the use of two alternative strategies. In the first approach, density functions for the number of victories for all teams within a season are known, whereas in the second approach, a kernel density function of team winning probability is deter-mined for each season. Thus, a prospective competitive balance analysis is conducted. The study period covers seasons 1993-94 and 2011-12. The results suggest that long-term competitive balance levels are high, as many teams change their classifications. At season level, competitive balance seems to improve along the period studied. However, there are still too many differences between the teams in the same season.

Keywords: Betting odds, competitive balance, graphical analysis, NBA, prospective competitive balance measures, sports league policy.


Article Information


Identifiers and Pagination:

Year: 2016
Volume: 9
Issue: Suppl-1, M10
First Page: 81
Last Page: 93
Publisher Id: TOSSJ-9-81
DOI: 10.2174/1875399X01609010081

Article History:

Received Date: 19/03/2015
Revision Received Date: 1/06/2015
Acceptance Date: 07/09/2015
Electronic publication date: 12/05/2016
Collection year: 2016

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© del Corral et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.


* Address correspondence to this author at the University of Castilla-La Mancha, Facultad de Derecho y Ciencias Sociales, Ronda de Toledo s/n, 13071, Ciudad Real (Ciudad Real), Spain; Tel: +34 926295300; Ext: 3549; E-mail: Julio.corral@uclm.es


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