The P Problem, Work-life Expectancy and the LPE System: An Exchange between Users of LPE

This paper reviews an exchange between Michael L. Brookshire and Grayson L. Forlines on one side and Anthony M. Gamboa and employees of Vocational Economics, Inc. on the other side between 2014 and 2016 in The Rehabilitation Professional. It begins by discussing the general framework of the LPE system in which ‘‘L’’ refers to the probability of life, measured by the survival rate, ‘‘P’’ refers to the participation rate of persons in the commercial labor market, and ‘‘E’’ refers to the employment rate. It then reviews arguments made by Brookshire and Forlines and counter-arguments made by employees of Vocational Economics regarding the ‘‘P Problem’’ with the specific LPE method employed by Vocational Economics in assessing work-life expectancy.