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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 produce bias in the estimated shape of the hazard rate. 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 og Tao Zhang

År:

2000

Serie:

Memorandum
Nummer i serie: 23

JEL:

C41

Nøkkelord:

Unemployment duration, Weibull model, Time aggregation bias

Prosjekt:

1203 - Sortering, utsatte grupper og arbeidsmarkedstiltak

Finansiering:

Norges forskningsråd

Lenke:

[PDF]