Factors affecting the performance of water utility companies

The purpose of this paper is to carry out an analysis of Italian water utility companies to determine whether their performance was related to certain relevant variables that have been broadly discussed in the existing literature. Among these are ownership structure, size and diversification. In addition, the paper considers another variable – the geographical location. The paper reviewed the annual financial statements of 80 Italian water utility companies between 2004 and 2008. It also obtained data regarding tariffs, volumes supplied and population served from Conviri, the Italian national authority for water. Finally, the paper discusses the significant differences among clusters, using parametric statistic methods. It was found that ownership structure, size, diversification and geographical location had an impact on the performance of water utility companies, although with different degrees of significance.