We’re excited to announce that EffectiveAltruism.org is hosting the 2017 effective altruism donor lottery!
A donation lottery is a different way to donate. Rather than making a donation to a charitable organization directly, you can make a donation to a donor lottery. You then get a shot at being able to recommend where the entire pool of money goes, in proportion to the size of your donation.
The concept was described by Carl Shulman in 2016, and in late 2016, Carl and Paul Christiano successfully ran the first donor lottery.
Carl and Paul have asked the Centre for Effective Altruism (the organization that runs EffectiveAltruism.org) to take on the responsibility of running this year’s lottery. As with the original lottery, Paul is acting as lottery guarantor, backstopping the lottery pot size of $100,000.
As this is the first time we’ve run the lottery on EffectiveAltruism.org, we’re considering this section of the site to be in open beta. If you notice anything that looks out of place, if anything in the explanation is unclear, or anything doesn’t work as expected, we’d really appreciate your feedback, either via the chat bubble at the bottom right of the screen, via lottery [at] effectivealtruism [dot] org, or in the comments below.
Sam Deere
Tech lead, Centre for Effective Altruism
If you have overflow, that means you have more than the amount of the first block coming in, so you only need the guarantor for the last block. E.g. if people enter with $150,000 collectively, then $100,000 of that goes to pay out for the first block (which will definitely pay out because all of its numbers are allocated). In the 50% chance that the second block is won, then the guarantor will add $50,000 to pay out the second block (and otherwise the guarantor will allocate the funds, basically the guarantor is just committing to take all the unclaimed tickets on the last block).