Robert Solow in the 1950s was able to tease out just how much it was contributing by counting the contribution of capital and labour, and deducing that the rest (87.5 per cent) of the change in living standards must be due to technological change. It is technological change that is the chief source of increasing returns: of the fact that economic growth for the world as a whole shows no sign of reaching a plateau. Little wonder, then, that Deirdre McCloskey describes the system that produced the great enrichment of the past two centuries as ‘innovationism’ rather than ‘capitalism’. The new and
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