AdvertisementEconomists Question Keynes-Inspired StimulusAugust 06, 2010David KestenbaumfacebookEmailJohn Maynard Keynes, considered the father of modern macroeconomics, sits at his desk in London in 1940. Economists call the Obama administration's stimulus package the first real test of Keynesian economics, but long-term benefits of Keynes' theory are still up for debate. (Picture Post/Getty Images)