Public Private Partnerships in Sub Saharan Africa Paper

I’m working on a urban planning question and need an explanation and answer to help me learn.

It is claimed that economic growth and the goal of the eradication of poverty depend upon the energy and capital of the private sector. It is increasingly thought that effective development strategies must be linked to or informed by the private sector. Describe the pros and cons of public private partnerships in Sub-Saharan Africa. Who are the key actors and stakeholders in successful models?