Two-dimensional forward and backward transition rates
Abstract
Forward transition rates were originally introduced with the aim to evaluate life insurance liabilities market-consistently. While this idea turned out to have its limitations, recent literature repurposes forward transition rates as a tool for avoiding Markov assumptions in the calculation of life insurance reserves. While life insurance reserves are some form of conditional first-order moments, the calculation of conditional second-order moments needs an extension of the forward transition rate concept from one dimension to two dimensions. Two-dimensional forward transition rates are also needed for the calculation of path-dependent life insurance cash-flows as they occur upon contract modifications. Forward transition rates are designed for doing prospective calculations, and by a time-symmetric definition of so-called backward transition rates one can do retrospective calculations.
Cite
@article{arxiv.2204.12766,
title = {Two-dimensional forward and backward transition rates},
author = {Theis Bathke and Marcus Christiansen},
journal= {arXiv preprint arXiv:2204.12766},
year = {2022}
}