Framework Model for Financing Sustainable Water and Sanitation Infrastructure in Zimbabwe

Abstract

Financing frameworks for Public–Private Partnerships (PPPs) are lacking in developing countries. This study aims to develop a financing framework for adoption for water and sanitation PPP infrastructure projects in Zimbabwe. Using data covering a 25-year period from 1996 to 2021, Tobit econometric models are applied to the secondary data collected from both international and domestic sources. The results of this study confirm that capital market variables, bank market development, and economic affluence drive the financing of water and sanitation Public–Private Partnership infrastructure projects in Zimbabwe. It was also established that both public and private sources of finance are instrumental in financing water and sanitation PPP projects. The results inform our eventual framework model, which integrates the Public–Private Partnership (PPP) models, sources of finance for water and sanitation PPPs, and the drivers of water and sanitation PPP finance. This study recommends the application of the developed framework in the water and sanitation Public–Private Partnership infrastructure financing policy of developing countries so as to capitalise on the strengths, resources, and networks of the respective stakeholders in the PPPs.