Social security systems for old age have been explicitly studied in a public choice framework for over 30 years. They illustrate extremely well the problems of allocating economic resources through a system of voting.

This paper examines the incentives facing voters to expand state pension provision and the possibilities of reducing state pension provision by increasing state pension age. As such it is of great relevance for the study of policy in ageing societies where implicit pension liabilities are increasing and will prove difficult to reduce.

Rickayzen and Walsh (2002), built a multiple state model which can be used to project the number of disabled people in the UK over the next 35 years. By focusing on the population who are over age 65 and projected to have severe disabilities, we are able to estimate the future long term care (LTC) demand over the next three decades.

This paper presents a probabilistic framework for taking account of common artifacts (specifically, allelic dropout, stutter bands and silent alleles) that can cause problems in analysing DNA samples when they occur.

A simple and efficient algorithm is presented for finding a maximum likelihood pedigree using microsatellite (STR) genotype information on a complete sample of related individuals.