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Volume 6 · Issue 2 · 2026

Impact That Can Be Examined

Impact diligence improves when a family separates the outcome experienced by people, the contribution of an enterprise, the contribution of its investor and the quality of the evidence. A proposed ledger makes those claims inspectable without pretending that one score can settle them.

1 research & analysis articleOpen access
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A note to the reader

This inaugural issue contains an original AI-assisted editorial analysis and a passage-search agent. It proposes a practical framework, not a new empirical study or a peer-reviewed finding. The cited sources, evidence limits and responsibilities are explicit. Publication does not imply Opal Group or source-author endorsement.

Contents

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01

Impact investing and evidence quality · Original editorial analysis

Four Claims, Four Tests: An Evidence Ledger for Impact Investing

Journal Opal · Editorial research desk
Journal Opal · 2026-11-06 · CC BY 4.0

Impact diligence improves when a family separates the outcome experienced by people, the contribution of an enterprise, the contribution of its investor and the quality of the evidence. A proposed ledger makes those claims inspectable without pretending that one score can settle them.