In order to respond to the global development challenges, the 2015 Addis Ababa Action Agenda (AAAA) put emphasis on the need to work closer with and increase investments of the private sector. Blended finance offers a promising approach to crowd-in additional commercial finance that is not currently invested for development outcomes, whereby blended finance is defined as the strategic use of development finance for the mobilisation of additional finance towards sustainable development in developing countries (OECD, 2018[1]). Development finance can thereby be concessional finance or non-concessional finance coming from public or private sources, e.g. philanthropic actors. Additional finance focuses on commercial finance, which refers to finance invested at commercial rates from private sources or public investors such as sovereign wealth funds.
The OECD Development Assistance Committee (DAC) Blended Finance Principles for Unlocking Commercial Finance for the Sustainable Development Goals are a regulatory framework that work towards sustainability of blended finance as a one approach to mobilise private finance in donors’ toolboxes (Figure A A.1). The OECD is currently developing guidance complementing the principles to provide further evidence to DAC members. Moreover, the OECD conducts a series of deep-dives into blended finance in specific contexts, including by sectors (water and sanitation with this publication; agriculture forthcoming in 2020), income group (OECD/UNCDF, 2019[2]) and a contribution to UNCDF (2018[3]), as well as geographical contexts as fragile contexts (Basile and Neunuebel, n.d.[4]).
At the same time, blended finance is a multi-stakeholder concept, strongly dependent on concerted efforts by development actors, commercial players and civil society. The Tri Hita Karana (THK) Roadmap was launched to establish a shared value system among international partners including governments such as Indonesia, Canada or Sweden, Multilateral Development Banks (MDBs) and Development Finance Institutions (DFIs), the private sector as well as civil society organisations (CSOs) and think tanks. Under the THK Roadmap, these actors engage in co-ordinated action to ensure that blended finance is contributing to sustainable development, including on developing good practice. This publication adds to the ambitions of the THK Roadmap by shedding light on blended finance in the water and sanitation sector.