The consequences of long term unemployment: evidence from matched employer-employee data / Katharine G. Abraham (University of Maryland, IZA and NBER), John Haltiwanger (University of Maryland, IZA and NBER), Kristin Sandusky (U.S. Census Bureau), James R. Spletzer (U.S. Census Bureau and IZA) ; IZA. Bonn : IZA, September 2016