Summary

Using historical data from 2015-2024, The Humane League (THL) estimates that each dollar spent on cage-free corporate campaigns has spared approximately two hens from cages. This estimate covers both the acquisition of new corporate commitments and the accountability work required to ensure those commitments are fulfilled across THL's US and Global corporate cage-free efforts.

The calculation draws on:

• Corporate cage-free policy fulfillment data collected by THL
• Estimates of the number of hens spared by each corporate policy THL helped secure
• Historical program cost data, adjusted for inflation and including proportional overhead

It is important to note that this is not an estimate of THL's overall cost-effectiveness. Rather, this analysis covers only THL's corporate cage-free campaigns. Other programs, such as THL's movement building work via the Open Wing Alliance or broiler welfare, are excluded here.

The goal of this analysis is twofold: to inform internal resource allocation, and to offer a transparent, accessible response to one of the most common questions asked by THL supporters. The methodology used prioritizes accessibility over granularity at some points, which are detailed in the “Additional Assumptions & Limitations” section.

While this model is simplified, we are encouraged that the resulting [...]

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Outline:

(00:13 ) Summary

(02:27 ) Methodology & Assumptions

(07:25 ) Additional Assumptions & Limitations

(10:28 ) Future Work

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First published:

November 11th, 2025

Source:

https://forum.effectivealtruism.org/posts/Fbx9hf2e6MaLfoNwD/cost-effectiveness-of-thl-s-corporate-cage-free-campaigns

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Narrated by TYPE III AUDIO.