“…This is made possible by an experimental design in which each subject chooses how much to give under different budgets with different prices of giving. Researchers have subsequently applied this "multiple-budgets" approach to recover individual preferences in a study of charity giving (Eckel and Grossman, 2003), risk aversion (Choi, Fisman, and Gale, 2007), bargainers' preferences (Andreoni, Castillo, and Petrie, 2003), and warm-glow preferences (Korenok, Millner, and Razzolini, 2013).…”