This report gives an overview of the global trend of private participation in infrastructure projects from 1984 until 2016. For example, it notes a sharp decline in investment with private participation in infrastructure projects in Emerging Markets and Developing Economies (EMDEs): a 37 per cent decline compared to 2015 and a 41 per cent decline over 2011 to 2015 (World Bank, 2017).

The PPI Database of the World Bank provides detail on more than 8,700 infrastructure projects with private sector participation.