A curated collection of research, frameworks, and tools — organized by topic and mapped to The Impact Thesis Blueprint.
The impact investing market has grown from a niche practice to an estimated $1.6 trillion in assets under management. Understanding the current state of this market — its size, growth trajectory, geographic distribution, and performance trends — is essential context for anyone constructing an impact thesis.
The Global Impact Investing Network produces the most comprehensive market data through its annual surveys and sizing reports. These publications track market growth over time, analyze performance across asset classes and geographies, and identify the trends shaping investor behavior.
Market sizing in impact investing presents unique methodological challenges. The boundaries of what constitutes an "impact investment" remain contested, and different definitions produce different market size estimates. The GIIN's methodology applies specific criteria aligned to the core characteristics of impact investing — intentionality, evidence-based practice, performance management, and contribution to industry learning.
The Blueprint's first module, Overview of Impact Investing, situates the practice within the broader continuum of capital. The resources here provide the quantitative context for that positioning.
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