Economic Research: How Increasing Income Inequality Is Dampening U.S. Economic Growth, And Possible Ways To Change The Tide Secular Stagnation The Fed's expectation for long-run U.S. economic growth has drifted down even more than our forecasts. Five years ago, the Fed expected to see the economy ambling along at a respectable 2.65% annual pace over the long run. By June, the Fed's expectation for long-run growth in the U.S. had dropped to 2.2% (central tendency was 2.1% to 2.3%). The IMF and CBO have also lowered their long-term growth projections. Last month, the IMF lowered its long-run growth forecast for the US. to about 2% (47). The CBO now projects that real (inflation-adjusted) GDP will increase at an average annual rate of 2.3% over the next 25 years, compared with 3.1% during 1970-2007. Aside from the fact that there are different Federal Open Market Committee participants now than before, the Fed's reasons for lowering its expectations for long-term growth are likely similar to concerns that the IMF and CBO raised, including the effects of an aging population on the economy and more modest prospects for productivity growth. The CBO also noted that in addition to the retirement of the baby-boom generation, the declining birth rates and leveling off of increases in women's participation in the work force also helped slow the growth of the labor force. In this light, former Secretary of the Treasury Lawrence Summers has said that the U.S. may be mired in a period of slow growth, marked by only marginal increases in the size of the workforce and small gains in productivity--what he called "secular stagnation" (48). This refers to an economic era of persistently insufficient economic demand relative to the aggregate saving of households and corporations. Here, the U.S. may be stuck in a long-run equilibrium where real interest rates need to be negative to generate adequate demand. Without that, the US. slides into economic stagnation. While specific causes of