Title from cover.
"Revised, November 2007"-- P.1.
"A very early version was circulated as Bhattacharjeee, A. and Das, S. (2002). Testing proportionality in duration models with respect to continuous covariates. DAE Working Paper no. 0220, Department of Applied Economics, University of Cambridge, UK"-- P. 1.
Partial orders with respect to continuous covariates and tests for the proportional hazards model by A. Bhattacharjee. Published by School of Economics and Finance, St. Salvator's College in 2007. Publication and catalogue information, links to buy online and reader comments.