Monday, November 30, 2009

Worse Than Inflation

clipped from www.newsweek.com

So here's another scenario—which in many ways is worse than the inflation scenario. What happens is that we get a rise in the real interest rate, which is the actual interest rate minus inflation. According to a substantial amount of empirical research by economists, including Peter Orszag (now at the Office of Management and Budget), significant increases in the debt-to-GDP ratio tend to increase the real interest rate. One recent study concluded that "a 20 percentage point increase in the U.S. government-debt-to-GDP ratio should lead to a 20–120 basis points [0.2–1.2 percent] increase in real interest rates." This can happen in one of three ways: the nominal interest rate rises and inflation stays the same; the nominal rate stays the same and inflation falls; or—the nightmare case—the nominal interest rate rises and inflation falls.

Today's Keynesians deny that this can happen. But the historical evidence is against them.