This introduction to the Public Choice special issue on “Quadratic Voting and the Public Good” provides an opinionated narrative summary of the contents and surveys the broader literature related to Quadratic Voting (QV). QV is a voting rule, proposed by one of us (Weyl, 2012; Lalley and Weyl, 2016) building off earlier work by Groves and Ledyard (1977) and Hylland and Zeckhauser (1980), where ...