Thanks for the reply! Sharing a couple other relevant thoughts just because I took the time to think them, but no reply is necessary.
(This is probably the sort of scenario where I should just spend the minute to tweet at VISA rather than spend several minutes trying to more precisely estimate the expected impact, but I only consciously thought of this after already spending a few more minutes thinking about the expected impact and writing out the following so I’m posting my thoughts anyway.)
Re:
(a) Naively I’d estimate that the counterfactual effect of 200 additional marginal EAs retweeting/sharing the relevant posts on Tuesday on the probability that VISA eliminates fees for nonprofits in the next year is roughly ~5% (and possibly much lower if I thought about it longer). I’d be shocked if this one push increased the probability by 40%, even though I do agree that sometimes (often?) large companies make changes because of a small number of people posting on social media.
(b) Adjusting your estimate with different more conservative assumptions—a 2% average credit card fee, only donors <$10,000/year (rather than <$100,000/year) use credit cards to donate (i.e. $15.4% of the $16.1M/year rather than 43%), and assuming only the impact from VISA changing their fees—then the direct impact would be closer to $24,800/year = (Your $207,690 estimate)(2%/3%)(15.4%/43%)*(0.5). The main direct impact this ignores is the fact that presumably many people who do not respond to the EA Survey donate to EA charities using VISA credit cards. The EA Survey VISA donors may represent a minority of VISA donors to EA charities.
Or you could just look at how much money goes to highly effective charities, since we’re talking about abolishing fees for all donors, not just EAs. The AMF had donations totalling 36 million in FY2020, so, using your values of 2% credit card fees, 15.4% of money donated by credit card (though I suspect the real value to be much higher, especially when considering non-EA donors) and visa holding 50% of the credit card market, that’s a total of 55′000$ for just one charity. Given that, I think it’s perfectly reasonable to say that visa eliminating their fees would increase funding for the most effective charities by hundreds of thousands if not millions of dollars a year, though I disagree with JSWinchell’s methodology
Thanks for the reply! Sharing a couple other relevant thoughts just because I took the time to think them, but no reply is necessary.
(This is probably the sort of scenario where I should just spend the minute to tweet at VISA rather than spend several minutes trying to more precisely estimate the expected impact, but I only consciously thought of this after already spending a few more minutes thinking about the expected impact and writing out the following so I’m posting my thoughts anyway.)
Re:
(a) Naively I’d estimate that the counterfactual effect of 200 additional marginal EAs retweeting/sharing the relevant posts on Tuesday on the probability that VISA eliminates fees for nonprofits in the next year is roughly ~5% (and possibly much lower if I thought about it longer). I’d be shocked if this one push increased the probability by 40%, even though I do agree that sometimes (often?) large companies make changes because of a small number of people posting on social media.
(b) Adjusting your estimate with different more conservative assumptions—a 2% average credit card fee, only donors <$10,000/year (rather than <$100,000/year) use credit cards to donate (i.e. $15.4% of the $16.1M/year rather than 43%), and assuming only the impact from VISA changing their fees—then the direct impact would be closer to $24,800/year = (Your $207,690 estimate)(2%/3%)(15.4%/43%)*(0.5). The main direct impact this ignores is the fact that presumably many people who do not respond to the EA Survey donate to EA charities using VISA credit cards. The EA Survey VISA donors may represent a minority of VISA donors to EA charities.
Or you could just look at how much money goes to highly effective charities, since we’re talking about abolishing fees for all donors, not just EAs. The AMF had donations totalling 36 million in FY2020, so, using your values of 2% credit card fees, 15.4% of money donated by credit card (though I suspect the real value to be much higher, especially when considering non-EA donors) and visa holding 50% of the credit card market, that’s a total of 55′000$ for just one charity. Given that, I think it’s perfectly reasonable to say that visa eliminating their fees would increase funding for the most effective charities by hundreds of thousands if not millions of dollars a year, though I disagree with JSWinchell’s methodology