In daily life, people are often exposed to food temptations, such as ads for chocolate or friends offering cookies. This article examines how consumers respond to such food temptations. We investigate whether food temptations, differing in strength (weak vs. strong), lead consumers to eat more...

This paper attempts to provide an evolutionary explanation for humans' motivation to strive for money in present-day societies. We propose that people's desire for money is an adaptation of their desire for food. In three studies we show that feelings of financial and caloric scarcity are...

Recent models of altruism point out the success of a strategy called 'Raise-The-Stakes' (RTS) in situations allowing variability in cooperation. In theory, RTS is difficult to exploit because it begins with a small investment in an iterated Prisoner's Dilemma Game. When its cooperation is...