However, price-gouging is a felony in many American states. After hurricane Katrina, when profiteers tried to make money from selling diesel generators at well above market value, there were even calls for a national price-gouging law. Also, consider the outcry when a Starbucks’ clerk charged a New York ambulance crew the market rate for mineral water in the immediate aftermath of 9/11. Can you imagine how much louder the clamour would have been had Starbucks charged double the going rate simply because that’s what the market would bear? Clearly, price-gouging is a very emotive issue, and one that economic models can’t rationalise away. Nevertheless, anyone looking for a primer on how the ‘invisible hand’ steers prices in the market could do worse than read The Price of Everything.

Clint Witchalls is a former business analyst who writes for the Economist, the Guardian, the Observer and the Times

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