Main Types of Public-Private Partnerships Main types of Public Private Partnerships PPP Source: adapted from Hammami, M., Ruhashyankiko, J.F., & Yehoue, E. (2006). Determinants of public-private partnerships in infrastructure. IMF Working Paper, IMF Institute. Share this:Click to share on LinkedIn (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)