How do we know we need to control for selectivity?

In the previous two decades there has been considerable progress in recognizing biases due to selectivity that are associated with the use of observational data to make causal inferences and in developing models to control for these biases statistically. Often there is a difference between estimates...

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Bibliographic Details
Format: Article
Language:English
Published: Max Planck Institute for Demographic Research 2003-09-01
Series:Demographic Research
Subjects:
Online Access:http://www.demographic-research.org/special/1/4/