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A Note on the Weibull Distribution and Time Aggregation Bias

Sammendrag

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.

Om publikasjonen

Forfattere:

Røed, Knut and Zhang, Tao

År:

2002

Tidsskrift:

Applied Economics Letters

Serie:

Vitenskapelige tidskrift

JEL:

C41

Nøkkelord:

Unemployment duration, Weibull model, Time aggregation bias

Prosjekt:

1203 - Sortering, utsatte grupper og arbeidsmarkedstiltak

Finansiering:

Forskningsrådet