The study carried out by VTT Technical Research Centre of Finland, Aalto University and University of Oulu investigated the ownership and governance structure of Finnish infrastructure networks and utilities. A part of the research focused on investors' and owners' returns.
29 municipal and state owned units, limited companies and some private entities were analysed using the financial statement data for 2002-2009. The study covered water supply, roads, streets, ports, airports, railways and energy networks. The report annexes even wider empirical material.