The economist and historian Lord Skidelsky and his son Edward, a philosopher at Exeter University, have explored the question of wealth and morals in a book entitled How Much Is Enough?
Speaking to the Today programme, Lord Skidelsky said that "capitalist civilisation has unleashed greed from its traditional moral constraint".
"There's a strong tendency to always want more... but there is a point we can say that's enough," Edward Skidelsky told John Humphrys.
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