Bivariate duration data frequently arise in economics, biostatistics and other areas. In "bivariate frailty models", dependence between the frailties (i.e., unobserved determinants) induces dependence between the durations. Using notions of quadrant dependence, we study restrictions that this...

The primary purpose of this paper is to investigate whether companies can use acquisition as a strategy to reduce their probability of takeover. A subsidiary issue is whether such a strategy has any impact on their subsequent probability of bankruptcy. The determinants of making an acquisition,...

We show that the main nonparametric identification finding of Abbring and Van den Berg (2003b, Econometrica) for the effect of a timing-chosen treatment on an event duration of interest does not hold. The main problem is that the identification is based on the competing-risks identification...

This paper evaluates the effect of replacing traditional German five-year degrees with three-year bachelor programs on the duration until graduation and dropping out of university. Using an extensive dataset containing detailed administrative data on more than 9000 students, competing risks...