Economists agree about economics - and that's a science - and they disagree about economic policy because that's a value judgment... I've had profound disagreements on policy with the famous Milton Friedman. But, on economics, we agree.
Franco Modigliani
People confuse economists and economic policy.
Franco Modigliani
The immediate effect of the deficit is to make you feel good, like when you go on a trip and pay later. You feel good, and then you get a hangover. The deficit makes you feel good - until you pay later.