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The Uncounted Trillions in the Inequality Debate. Martin Feldstein, December 13, 2015, Opinion. "The Federal Reserve recently estimated total household net worth in the U.S. to be about $80 trillion, including real estate and financial assets. And data from the Fed’s Survey of Consumer Finances imply that the top 10% of households by net worth hold about 75%—or $60 trillion—of this total. The bottom 90% of households therefore have a net worth of about $20 trillion ..." Link