Guillen, Montserrat; Nielsen, Jens Perch; Scheike, Tomas; … - Facultat d'Economia i Empresa, Universitat de Barcelona - 2006
The Cox model (Cox, 1972) is widely used in customer lifetime duration research, but it assumes that the regression coefficients are time invariant. In order to analyse the temporal covariate effects on the duration times, we propose to use an extended version of the Cox model where the...