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This spreadsheet is part of ACE's 2024 evaluation of Sinergia. It includes our cost-effectiveness analysis (CEA) of three of their programs. Given the important limitations of these analyses, we advise caution when interpreting the data. If readers have any questions or comments, please contact ACE's Evaluations Manager, Vincent Mak: vincent.mak@animalcharityevaluators.org

We aimed to estimate Suffering-Adjusted Days (SADs) per dollar for all our cost-effectiveness assessments. To do this, we used Ambitious Impact’s new internal SADs system for making quantitative decisions on animal welfare ideas. This roughly represents the number of days of intense pain felt by each animal. It is essentially a measure of days in pain with various adjustments for:
- Intensity of pain
- Sentience
- Welfare range (i.e., their relative capacity to experience pain and pleasure, in accordance with Rethink Priorities’ ‘Welfare Ranges’ report)

SADs are adjusted to “disabling” levels of pain on the Welfare Footprint pain scale, so one day spent in disabling pain for one human would be equal to one SAD.

We attempted to independently verify many of the values in this spreadsheet, especially when estimates were provided by the charity. Where it felt reasonable to do so, in cases where we sourced differing opinions on values we opted to adjust the value to fall between the upper and lower values we sourced.

While all cost-effectiveness estimates for Sinergia have limited explanatory power and should be interpreted with caution, this is especially the case for the estimate of their cage-free campaigns. Due to the lack of data on eggs used per retailer, we used data from other companies which makes this estimate speculative and less likely to be accurate. Additionally, our estimates of the institutional meat reduction campaign should be interpreted with caution because they rely on our rough estimates of SADs averted per meal replaced. Finally, because the SADs system has been recently created and has its own internal limitations, it's likely that data will be updated soon. Thus, we advise readers to be cautious about taking these values as rigid estimates.
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Note: ACE has updated our SADs values since this evaluation. These spreadsheets retain the original values used at the time of assessment, and our opinion is that the updates don't warrant changes to charities' recommendation status.
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