Identification Results for Duration Models with Multiple Spells
Bo E. Honore
The Review of Economic Studies, Vol. 60, No. 1. (Jan., 1993), pp. 241-246.
Stable URL: http://links.jstor.org/sici?sici=0034-6527%28199301%2960%3A1%3C241%3AIRFDMW%3E2.0.CO%3B2-V