Edlin, Aaron; Gelman, Andrew; Kaplan, Noah - In: The Economists' Voice 5 (2008) 6, pp. 6-6
In a battleground state like Colorado or New Mexico, voting in the presidential election may be equivalent to giving $30,000 - $50,000 to others in expected value, and as such is an extremely efficient form of charity, according to Aaron Edlin, Andrew Gelman and Noah Kaplan.