This is a tough one. I’m most confident in the cost-effectiveness of corporate campaigns, especially on cage-free and broiler welfare, because there’s a tight feedback loop and easily measurable results. But I think a number of more speculative longer-term interventions could plausibly turn out to be more cost-effective—they’re just higher variance. Some candidates for plausibly most cost-effective longer-term interventions:
Any scaleable intervention for improving fish welfare, especially of the most numerous farmed species (e.g. common carp) and wild-caught fish (at capture and slaughter).
Any tractable work in the countries with the largest number of farmed animals (the top 3 are China, India Indonesia, and the rest are here)
Any work that enables a breakthrough on the taste and price of alternative proteins that directly compete with fish, crustaceans, chicken, or eggs.
This is a tough one. I’m most confident in the cost-effectiveness of corporate campaigns, especially on cage-free and broiler welfare, because there’s a tight feedback loop and easily measurable results. But I think a number of more speculative longer-term interventions could plausibly turn out to be more cost-effective—they’re just higher variance. Some candidates for plausibly most cost-effective longer-term interventions:
Any scaleable intervention for improving fish welfare, especially of the most numerous farmed species (e.g. common carp) and wild-caught fish (at capture and slaughter).
Any tractable work in the countries with the largest number of farmed animals (the top 3 are China, India Indonesia, and the rest are here)
Any work that enables a breakthrough on the taste and price of alternative proteins that directly compete with fish, crustaceans, chicken, or eggs.