How spending stimulates

Will the Obama deficit-spending plan work? Will throwing $800 billion—$500 billion in extra government spending, and $300 billion in tax cuts—at the economy produce a world in which production and employment are higher and unemployment lower than would otherwise have been the case?

The short answer is yes. The short reason is that spending works—eras in which some group or other gets excited about future prospects and starts madly spending money are eras in which production and employment are high and unemployment is low. And the government, in this respect, is just like any other group of starry-eyed optimists whose eagerness to spend pulls the economy into a high-employment, high-pressure boom.