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Erschienen in:
1990 | OriginalPaper | Buchkapitel
Selection Bias and Self-selection
verfasst von : James J. Heckman
Erschienen in: Econometrics
Verlag: Palgrave Macmillan UK
Enthalten in: Professional Book Archive
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The problem of selection bias in economic and social statistics arises when a rule other than simple random sampling is used to sample the underlying population that is the object of interest. The distorted representation of a true population as a consequence of a sampling rule is the essence of the selection problem. Distorting selection rules may be the outcome of decisions of sample survey statisticians, self-selection decisions by the agents being studied or both.