  This paper presents a multinomial multi-state micro-level reserving model,
denoted mCube. We propose a unified framework for modelling the time and the
payment process for IBNR and RBNS claims and for modeling IBNR claim counts. We
use multinomial distributions for the time process and spliced mixture models
for the payment process. We illustrate the excellent performance of the
proposed model on a real data set of a major insurance company consisting of
bodily injury claims. It is shown that the proposed model produces a best
estimate distribution that is centered around the true reserve.
