Wow! One data point [World War II] and you’re jumping for joy. The last time I checked, wars only destroy!
This poetic passage from “Fight of the Century,” a new economics hip-hop music video that kicked off an opening session of the Investment Management Consultants Association, held in New York City in January, encapsulated a key argument of one the session’s two presenters: that claims as to the effectiveness of expansionary fiscal policies to counteract a downturn—as happened during the Second World War following the Great Depression—are without merit. I beg to differ.
And I’m in good company. The idea that fiscal policy can be used to moderate booms and busts in the business cycle gained currency when British economist John Maynard Keynes published his “General Theory of Employment, Interest and Money,” in 1936. The central tenet of his treatise—that aggregate demand, rather than supply, guides economic activity—became a guiding principal of economic policy among Western governments in the post-war years.
At the IMCA conference, Jared Bernstein, an economist for the Washington, D.C., Center on Budget and Policy Priorities, represented the Keynesian side of debate portrayed in the music video. Increased government expenditures, he said, should be used to compensate for economic contractions caused by reduced consumer spending and business investment during a recession. That increased spending, he said, has a “multiplier effect:” the initial change to aggregate demand causes aggregate output (and national income) to increase by a multiple of the initial change.
To buttress his case for Keynesian economics, Bernstein displayed PowerPoint slides showing the impact to the economy of the Obama Administration’s $787 American Recovery and Reinvestment Act of 2009. Soon after the stimulus package’s enactment, he noted, GDP contraction slowed, reversing the negative 9% annual growth rate posted in the fourth quarter of 2008. By the second half of 2009, the economy was expanding again.
Only after stimulus spending petered out in late 2010 did GDP growth begin to slow once more. The stimulus package, he said, wasn’t large enough to overcome the economic devastation wrought by the bursting of a housing bubble that resulted in trillions of dollars of lost wealth. A spending bill closer to $2 trillion, a figure supported by Bernstein and many other economists, would have been needed to maintain the desired level of growth.