Donald Green in the New York Times

Donald Green, Burgess Professor of Political Science, quoted in the New York Times
The Yarn Store Would Like You to Vote
Large companies like Coca-Cola and Delta Air Lines are incorporating get-out-the-vote messages in their advertising and product design. Even small businesses — the dry cleaners, delis and yarn stores of American cities — are using signs to urge customers to vote. … “The more authentic and personal, the more effective,” said Donald Green, a professor of political science at Columbia who has conducted dozens of randomized controlled trials of different techniques to boost voter participation.