Making Sen$e Dec 25

What are your Christmas gifts worth to you?

Those gifts you opened this morning -- they're worth less to you than the gift-giver paid for them, no doubt. That's the deadweight loss of Christmas for you. But plenty of economists are saying "bah, humbug" to economic rationality and…

Science Jun 09

Rats regret their decisions, study finds

Regret, it turns out, is not just a human emotion. Rats regret their bad decisions too, a study in the journal Nature Neuroscience finds. And only a few of them learn from it.