Goodharts law
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Goodhart's law is an adage often stated as When a measure becomes a target, it ceases to be a good measure . It is named after British economist Charles Goodhart, who advanced the idea in a 1975 article on monetary policy in the United Kingdom: • Any observed statistical regularity will tend to collapse once pressure is placed upon it for control purposes. • It was later used to criticize the British Thatcher government for trying to conduct monetary policy on the basis of targets for broad and narrow money. • Source: https://en.wikipedia.org/wiki/Goodhar... • Created with WikipediaReaderReborn (c) WikipediaReader
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