Already, some $46 billion in impact investments are under management globally, according to estimates. While this figure is growing, it is only a tiny fraction of the $210 trillion invested in financial markets around the world.
U.S. investment bank J.P. Morgan estimates that capital flows into impact investing could reach $1 trillion by the end of the decade.
The report sets out eight recommendations to governments and financial service providers in the Group of Eight countries.
They include allowing charitable foundations to consider social as well as financial returns on their investments and boosting the use of social businesses in public services.
The task force also said pension funds and providers of tax-advantaged savings schemes and products should do more to include impact investments as part of their offering.