Heard about Comparative Advantage on the CBC Ideas program, episode The Screw That Changed The World. The colourful analogy was: although Winston Churchill was a good bricklayer, he is better off to run the country and pay someone else to build his walls. Similarly, the brick layer is better off building walls, whilst paying W.C. to run the country. It's food for thought for someone like myself, who likes to dabble a bit in everything.
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