11.   Jared Bernstein is a labor economist with the Economic Policy Institute and one of the authors of the report.

12.   John Schmitt, a labor economist at the liberal Economic Policy Institute, agreed.

13.   Lawrence Katz, a labor economist at Harvard, says that reducing the stigma attached to joblessness has profound effects on the labor market.

14.   Mainstream labor economists say a tax cut would cause millions of Americans to work less.

15.   Sherwin Rosen, a labor economist at the University of Chicago, calls the market irrational.

16.   So was Arlene Leibowitz, a labor economist at the Rand Corporation in Los Angeles.

17.   Some labor economists say the efforts of temporary-help companies to expand their services could backfire on the temporary workers themselves.

18.   That finding helps to explain the nationwide decline in union membership, said Richard Freeman, a Harvard University labor economist involved in the survey.

19.   Such reasoning incenses Richard Freeman, a Harvard labor economist.

20.   The main reason, said Paul Harrington, a labor economist at Northeastern University, is that wages have stagnated.