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The Empirical Importance of Randomization Bias in the Bergen Experiments


  • Grasdal, A.


This paper examines the empirical importance of randomisation bias in a Norwegian randomised field trial on a rehabilitation programme for sick listed worders. Inclusion of participants in the trial was base on information obtained from administrative social insurance records. Professional judgements, which are decisive for treatment assignment under normal operating conditions, is assumed to be captured by a standardised screening test of participants prior to the randomisation.

Suggested Citation

  • Grasdal, A., 2001. "The Empirical Importance of Randomization Bias in the Bergen Experiments," Norway; Department of Economics, University of Bergen 0201, Department of Economics, University of Bergen.
  • Handle: RePEc:fth:bereco:0201

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    References listed on IDEAS

    1. Hanemann, W Michael, 1984. "Discrete-Continuous Models of Consumer Demand," Econometrica, Econometric Society, vol. 52(3), pages 541-561, May.
    2. Dubin, Jeffrey A & McFadden, Daniel L, 1984. "An Econometric Analysis of Residential Electric Appliance Holdings and Consumption," Econometrica, Econometric Society, vol. 52(2), pages 345-362, March.
    3. Heckman, James, 2013. "Sample selection bias as a specification error," Applied Econometrics, Publishing House "SINERGIA PRESS", vol. 31(3), pages 129-137.
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    JEL classification:

    • C81 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs - - - Methodology for Collecting, Estimating, and Organizing Microeconomic Data; Data Access
    • C93 - Mathematical and Quantitative Methods - - Design of Experiments - - - Field Experiments
    • D61 - Microeconomics - - Welfare Economics - - - Allocative Efficiency; Cost-Benefit Analysis


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