March 28, 2012
VTT Technical Research Centre of Finland, the University of Oulu and Aalto University in Finland have analysed the financial statements for 2002-2009 of companies, public utilities, and municipal units that own infrastructure, including water services, as well as road, port, airport, railway and electricity networks. Owning infrastructure is relatively risk-free. The most profitable is the energy sector where the return on investment was about 13%. The average annual return on investment of ports was 10%. T