This article identifies different groups in a cost function framework of soccer clubs in the Spanish Football League First Division. In particular, we have clustered the sample— comprising data for seasons 1994/1995 to 2004/2005—into three groups. To do so, we have implemented a...

Some industries exhibit external economies of scale. In these cases,the introduction of self-financing tax subsidy programmes canimprove social welfare. This paper advocates intervention incompetitive markets if economies of scale existand implementing the policy is inexpensive.