Modelling income protection claim termination rates by cause of sickness, Parts I and II – CORRIGENDUM

Abstract

In a series of three papers, Ling et al. (2009a, 2009b & 2009c), the authors set out formulae for the calculation of the recovery and mortality intensities for Income Protection Insurance (IPI) claimants. These formulae, which allow for duration of sickness, age, cause of claim and other factors, are, unsurprisingly, complex. Regrettably, there are some typographical errors in the published formulae. This short note corrects these errors and provides some clarification regarding the calculation of the intensities. The errors in the original papers were all typographical and did not affect the numerical results or the conclusions presented in those papers.