This study investigates empirically the strengths and limitations of using experimental versus nonexperimental designs for evaluating employment and training programs. The assessment involves comparing results from an experimental-design study-the National Supported Work Demonstration-with the...

Estimates of effective tax rates on earned and unearned income and estimates of effective guarantees in the AFDC program by state are provided for the period 1967-1982. The results indicate that effective real guarantees fell every year from 1967 to 1981 but stabilized in 1982. Effective tax...