Racial/ethnic differences in non-work at work / Daniel S. Hamermesh (Royal Holloway University of London, IZA, NBER and University of Texas at Austin), Katie R. Genadek (University of Colorado Boulder and IZA), Michael C. Burda (Humboldt University Berlin, CEPR and IZA) ; IZA, Institute of Labor Economics. Bonn, Germany : IZA Institute of Labor Economics, January 2017