A note on the Weibull distribution and time aggregation bias

Knut Røed () and Tao Zhang

Applied Economics Letters, 2002, vol. 9, issue 7, 469-472

Abstract: The application of continuous time Weibull models on discrete unemployment duration data may result in severely biased baseline estimates. The bias can be substantial even for weekly duration data, and it is seriously aggravated if the Weibull model is erroneously mixed with a Gamma distribution for unobserved heterogeneity.

Date: 2002
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DOI: 10.1080/13504850110096340

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