Banks are run by executives, and executives protect themselves, and that does not always mean that banks are going to behave rationally.

Below an income of ... $60,000 a year, people are unhappy, and they get progressively unhappier the poorer they get. Above that, we get an absolutely flat line. ... Money does not buy you experiential happiness, but lack of money certainly buys you misery.

People like leaders who look like they are dominant, optimistic, friendly to their friends, and quick on the trigger when it comes to enemies. They like boldness and despise the appearance of timidity and protracted doubt.

It doesn't take many observations to think you've spotted a trend, and it's probably not a trend at all.

The idea that you can ask one question and it makes the point - well, that wasn't how psychology was done at the time.

I would be wary of experts' intuition, except when they deal with something that they have dealt with a lot in the past.

A large portion of the weekend effects is explained by differences in the amount of time spent with friends or family between weekends and weekdays.