The ability to focus attention on important things is a defining characteristic of intelligence.

In the short run and for decisions unlikely to have broad impact, it may be more cost effective to use just one expert.

Economics is (now) about emotion and psychology.

Stock prices are likely to be among the prices that are relatively vulnerable to purely social movements because there is no accepted theory by which to understand the worth of stocks....investors have no model or at best a very incomplete model of behavior of prices, dividend, or earnings, of speculative assets.

Consider our difficulties avoiding junk food and overspending. Such addictions were carefully planned-for by professional marketing teams.

I have argued that we need livelihood insurance, which would protect people against the risk of seeing their skills and expertise no longer needed. Such insurance could be offered by the private sector.

Marketers know that if people you respect - perhaps laughably including entertainers and athletes - say they like a product, you're more likely to buy.