3.1 An examination of the PPI database of the World Bank Group and the PPP databases of some key countries reveals that while there is a preponderance of larger PPPs, several small-scale PPPs have also been undertaken, especially at sub-national levels of government and by autonomous bodies affiliated to governments.
3.2 The PPI database focuses only on four key sectors. Therefore, a large proportion of small-scale projects are from the water and sanitation sectors that are outside the area of our concern. Approximately 40% of all projects are of values less than $50 million, and approximately 25% of all projects are less than $25 million (1). The PPI database misses out on projects in other emerging sectors at the sub-national level. While non-traditional sectors are captured to an extent in country and sub-national databases, few of these databases are readily available in the public domain.