Before leaving this subject, I want to mention a different version of the structural unemployment argument, which is the concern that high unemployment today will result in an increase in structural unemployment in the future – a form of the phenomenon known as  8  See John Lindner and Murat Tasci (2010), “Has the Beveridge Curve Shifted?” Federal Reserve Bank of Cleveland, Economic Trends, August 10; and Robert Valletta and Katherine Kuang (2010), “Is Structural Unemployment on the Rise?
(PDF)” Federal Reserve Bank of San Francisco, FRBSF Economic Letter 2010-34 (November 8). 9  On the effects of unemployment benefits, see Robert Valletta and Katherine Kuang (2010), “Extended Unemployment and UI Benefits (PDF),” Federal Reserve Bank of San Francisco, FRBSF Economic Letter 2010-12 (April 19).