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Patient capital is money invested in ways that tolerate risk, illiquidity, and long time horizons, all in the name of solving deep-seated problems.

Jacqueline Novogratz

*The Blue Sweater: Bridging the Gap Between Rich and Poor in an Interconnected World*, book, 2009 · Checked on 4 March 2026
Patient capital is money invested in ways that tolerate risk, illiquidity, and long time horizons, all in the name of solving deep-seated problems.

Analysis

Novogratz’s description aligns with the widely accepted definition of patient capital as investment that prioritizes social or environmental impact over immediate financial returns, accepting higher risk, delayed liquidity, and extended timelines. This concept is central to her work at Acumen Fund (now Acumen), where she pioneered such models. Academic and industry sources, including the Global Impact Investing Network (GIIN) and Acumen’s own materials, corroborate this framing. No credible contradictions to her definition exist in the literature.

Background

Patient capital emerged as a term in the early 2000s within impact investing circles, distinguishing it from traditional venture capital or philanthropy. Novogratz popularized the phrase through Acumen’s work, which focused on scalable, market-based solutions to poverty. The 2009 book *The Blue Sweater* codified her experiences and philosophy, influencing later frameworks in social enterprise funding.

Verdict summary

Jacqueline Novogratz’s definition of *patient capital* in *The Blue Sweater* accurately reflects its established meaning in impact investing and development finance.

Sources consulted

— Novogratz, J. (2009). *The Blue Sweater: Bridging the Gap Between Rich and Poor in an Interconnected World*. Rodale Books, pp. 102–105 (definition and case studies)
— Global Impact Investing Network (GIIN). (2023). *Core Characteristics of Impact Investing*. [https://thegiin.org/impact-investing/need-to-know/](https://thegiin.org/impact-investing/need-to-know/)
— Acumen. (2021). *What is Patient Capital?* [https://acumen.org/ideas/what-is-patient-capital/](https://acumen.org/ideas/what-is-patient-capital/)
— Bugg-Levine, A., & Emerson, J. (2011). *Impact Investing: Transforming How We Make Money While Making a Difference*. Jossey-Bass, pp. 45–47 (discussion of patient capital in impact investing)