The authors analyze the pattern of the partnerships projects, approved between 2000 and 2003 in the framework of the Portuguese Operational Program for the Economy. By using HOMALS and K-means cluster analysis, the authors characterise the Public-Private Partnerships (PPP) and identify typical clusters for the PPP projects.
Link
http://www.fep.up.pt/investigacao/workingpapers/05.03.31_WP172_mariorui.pdf