It has long been acknowledged that acts of generosity raise levels of happiness and emotional well-being, giving charitable people a pleasant feeling known, in behavioral economics, as a “warm glow.” But so far, no studies have investigated the mechanics behind the correlation between altruism and happiness. Recently, Profs. Phillipe Tobler and Ernst Fehr, both from the Department of Economics at the University of Zurich (UZH) in Switzerland – in collaboration with other international researchers –