GARY SHILLING: Only One Thing Will Revive This Economy Sam Ro Aug. 15, 2012, 7:53 AM We recently reached out to our favorite economists and asked them: "What one thing would ignite this economy?" But bearish economist Gary Shilling wasn't about to stray from his long-term thesis. "The only thing that's likely to revive the US economy is time, the 5 to 7 years of it needed for deleveraging to be completed, especially in the global financial sector and among US households," he told us. "Meanwhile, slow real growth of about 2% per year and more frequent recessions are to...