Fourthly, we surely have to consider a more sophisticated view when measuring and thinking about inequality. If the opportunity to escape poverty and grow income and wealth is not available, then this is indeed something that society and our policymakers need to address; supply-side initiatives, including some of those we at the Growth Commission are studying, may be necessary. But the inequality of income is surely a more straightforward issue. There are always going to be individuals or groups which earn a higher income than others, and so long as the means of doing so are not illegal and the opportunity is open to as many as possible, this should act as a stimulant rather than something to be closed down.