Hess, Wolfgang; Persson, Maria - Institutet för Näringslivsforskning (IFN) - 2010
of trade with continuous-time models such as the Cox model, and to propose alternative discrete-time models which are … proportional hazards. By contrast, with discrete-time models there is no problem handling ties; unobserved heterogeneity can be … influential study by Besedeš and Prusa from 2006, but employing discrete-time models as well as the original Cox model, we find …