Rising Income Polarization in the United States Posted on June 28, 2016 by iMFdirect By Ali Alichi The latest IMF review of the U.S. economy underscores the country's resilience in the face of financial market volatility, a strong dollar, and subdued global demand. But the review also cites longer-term challenges to growth, including rising income polarization. Ever since the 1970s, the number of U.S. middle-income households, as percent of total, has been shrinking. The result has been increasing income polarization. For the three initial decades since then this polarization was more about households moving into the upper income ranks. However, since 2000, more middle-income households have fallen into lower, rather than higher income brackets. Combined with real income stagnation, polarization has had a negative impact on the economy, hampering the main engine of the U.S. growth: consumption. The analysis in our new paper suggests that over 1998–2013, the U.S. economy has ...