A simple procedure for the evaluation of treatment effects on duration variables
Summary of Working paper 2003:19
Often, a treatment and the outcome of interest are characterized by the moment they occure, and these moments are realizations of stochastic processes with dependent unobserved determinants. We develop a simple and intuitive method for inference on the treatment effect. The method can be implemented as a graphical procedure or as a straightforward parameter test in a auxiliary univariate single-spell duration model. The method exploits information on the timing of the treatment relative to the outcome that is discarded in binary treatment analyses.
Keywords: duration analysis, hazard rate, selectivity bias, treatment effect, unobserved heterogeneity.
JEL codes: C14, C31, C41.
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