A curated collection of research, frameworks, and tools — organized by topic and mapped to The Impact Thesis Blueprint.
Measurement is where impact investing either earns its credibility or loses it. The ability to quantify societal returns with the same rigor applied to financial returns is the defining challenge of the field. These resources, curated for The Impact Thesis Blueprint, provide the frameworks and tools needed to embed credible measurement into every stage of an impact thesis.
The measurement landscape is both rich and fragmented. Organizations like the Global Impact Investing Network have developed IRIS+, a system of standardized metrics organized by impact category and aligned to the Sustainable Development Goals. The Impact Management Platform provides a shared vocabulary for describing impact across the dimensions of what, who, how much, contribution, and risk. Impact Frontiers has advanced the concept of the Efficient Impact Frontier, which applies portfolio theory logic to impact optimization.
These frameworks are not competitors — they are layers of an evolving infrastructure. IRIS+ provides the metrics. The Impact Management Platform provides the conceptual framework. Impact Frontiers provides the portfolio-level analytical lens. Together, they represent the current state of the art in impact measurement.
Impact IRR, published in The Journal of Impact and ESG Investing, contributes to this infrastructure by adapting Internal Rate of Return to measure societal returns. It is one approach within a broader ecosystem of methodologies, each addressing different dimensions of the measurement challenge.
Collection of GIIN's 2023 impact performance briefs drawing on aggregated portfolio data to benchmark outcomes across sectors and geographies.
Results from the VBA's fourth pilot study testing impact accounting methodologies with multinational companies.
Joint architecture describing the methodology for standardized impact accounting across environmental and social dimensions.
Review of emerging approaches to integrated profit and loss statements that combine financial and impact accounting.
Case-based analysis of how faith-based investors are embedding racial equity into impact measurement frameworks and investment decision-making.
Primer on corporate impact indicators and valuation factors using agile models for sustainability measurement.
OECD framework on applying evaluation criteria (relevance, coherence, effectiveness, efficiency, impact, sustainability).
Beta framework guiding organizations through integrated decision-making across natural, social, human, and produced capital.
Template for including natural, social, human, and produced capital information in business decision-making.
GIIN's standardized methodology for comparing impact performance across investments with different objectives, enabling consistent portfolio-level analysis.
Synthesis of practitioner evidence on how impact data is collected, interpreted, and used to drive investment decisions and portfolio management.
Practical toolkit for applying GIIN's fund-level impact methodology, enabling consistent aggregation and comparison of impact data across a portfolio.
GIIN's standardized methodology for aggregating and benchmarking impact performance at the fund level across diverse sector and geographic exposures.
Quantitative evidence from GIIN member portfolios establishing a positive correlation between enterprise revenue growth and farmer impact outcomes.
Evidence from GIIN member portfolios on how financial inclusion investments generate gender equality outcomes, with benchmarked metrics across regions.
Evidence from GIIN member portfolios on how non-financial support interventions drive measurably better impact outcomes in agricultural investments.
Aggregated performance data from GIIN members investing in healthcare, benchmarking impact outcomes across access, quality, and affordability metrics.
Aggregated impact data mapping financial inclusion investment outcomes to specific SDG targets across emerging market portfolios.
Survey of impact measurement and management practices among GIIN members, tracking adoption of frameworks, tools, and data standards across the field.
Over 80 identified use cases for impact accounting across corporate departments, from strategy to reporting.
Assessment of the current state, practical challenges, and future prospects of impact accounting across sectors.
Country-level reports quantifying impact intensity across environmental and social dimensions using standardized value factors.
Platform providing resources and frameworks for managing impact across sectors.
Framework for integrating impact management into investment and business decision-making using the IWAF methodology.
Introduction to GIIN's impact performance benchmarking system, enabling investors to compare portfolio outcomes against sector and peer group norms.
First version of standardized norms for impact performance reporting in private markets.
Guidance on constructing impact statements that disclose positive and negative impacts across natural, human, and social capital.
Guide on selecting appropriate impact valuation perspectives for different decision contexts to avoid misapplication.
Current state of gender-lens investing, covering fund strategies, measurement approaches, and the evidence base for gender as an impact and financial driver.
Glossary of fundamental concepts and terminology used in impact management.
Multi-author framework for measuring corporate purpose through integrated financial and impact performance indicators.
Technical methodology for normalizing impact data across different investments, enabling consistent comparison of outcomes across a portfolio.
Academic review critiquing the current state of impact investing research and identifying literature gaps.
Academic research on translating environmental and social impacts into monetary terms for corporate decision-making.
SNS Impact Investing case study demonstrating how microfinance investment in Pro Mujer Bolivia generates integrated financial and social returns for low-income women.
UNDP standards helping enterprises integrate the SDGs into strategy, management, and impact measurement.
Systematic literature review exploring current practices and future directions for measuring social impact.
Framework of principles for measuring and managing social value, widely used in impact accounting practice.
Explores the concept of the efficient impact frontier for optimizing portfolios across impact and financial returns.
Book on the foundations and future of impact accounting for sustainable business decision-making.
Outlines the foundational principles for accounting and managing social value.
Foundational GIIN framework for interpreting impact performance data, establishing principles for assessing whether investments are achieving intended outcomes.
Sector benchmarks for impact performance in climate mitigation and job quality investments, drawing on standardized GIIN portfolio data.
Hub for the IFVI's technical committee advancing standardized value factors and impact valuation methodologies.
Methods for assessing and valuing materiality thresholds and industry benchmarks under the EU CSRD.
Fifth pilot study demonstrating impact accounting integration into strategic decision-making at leading multinationals.
Third pilot study testing impact accounting methods with corporate practitioners and knowledge partners.