Currency first hit the scene thousands of years ago. An anthropologist explains the early origins and uses of money – and how archaeological finds fill in our picture of the past.
There are few things Americans like more than lists and money, but ranking philanthropists on the monetary size of their giving distorts our understanding of generosity, argues one ethicist.
How much do you spend on a wedding present? Economics has the answer.
Still don't know what to get your loved one? Here are four gift-giving taboos meant to be broken.
The Prisoner's Dilemma suggests that in the long run it's a better strategy to give generously.