Eric **Glen Weyl** (born May 6, 1985) is an American economist at Microsoft Research, and a co-author (with Eric Posner) of the book Radical Markets: Uprooting Capitalism and Democracy for a Just Society.
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Weyl helped create a collective decision-making procedure known as quadratic voting, designed to allow fine-grained expression of how strongly voters feel about an issue, and also a method of democratically disbursing resources known as quadratic funding.