Can't Anybody Here Play This Game? Fiscal Policy Edition

Niall Ferguson writes:

Today’s Keynesians have learnt nothing: When Franklin Roosevelt became president in 1933, the deficit was already running at 4.7 per cent of GDP. It rose to a peak of 5.6 per cent in 1934. The federal debt burden [in the United States:] rose only slightly – from 40 to 45 per cent of GDP – prior to the outbreak of the second world war. It was the war that saw the US (and all the other combatants) embark on fiscal expansions of the sort we have seen since 2007. So...