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09 Mar 2020Working Paper Summaries

Impact Investing: A Theory of Financing Social Entrepreneurship

by Benjamin N. Roth

The author provides a formal definition of organizational sustainability and characterizes the situations in which a social enterprise should be sustainable. The analysis then delineates when an investment in a social enterprise delivers superior impact to a grant.

Author Abstract

I present a model of financing social enterprises to delineate the role of impact investors relative to “pure” philanthropists. I characterize the optimal scale and structure of a social enterprise when financed by grants and when financed by investments. The analysis yields two heuristics to guide impact investors. First, investments allow a financier to discipline inefficient spending. Second, investments may enable a social enterprise to exploit new opportunities for profit and may increase the enterprise’s scale relative to when grant financed. I quantify these heuristics for the case of Husk Power, a social enterprise that has received impact investment.