How to Spend a Trillion Dollars

John Maynard Keynes, the trendiest dead economist of this apocalyptic moment, was the godfather of government stimulus. Keynes had the radical idea that throwing money at recessions through aggressive deficit spending would resuscitate flatlined economies — and he wasn't too particular about where the money was thrown. In the depths of the Depression , he suggested that the Treasury could "fill old bottles with banknotes, bury them at suitable depths in disused coal mines" then sit back and watch a money-mining boom create jobs and prosperity. "It would, indeed, be more sensible to build houses and the like," he wrote,...