This paper develops an optimization model for selecting a large subsample that improves the representativeness of a simple random sample previously obtained from a population larger than the population of interest. The problem formulation involves convex mixed-integer nonlinear programming...

This paper examines the possibility of including cash-for-care benefits in life care annuities (LCAs) to help retired couples cope with the cost of long-term care (LTC). It aims to assess how much it would cost to add an extra stream of payments to annuities for couples should either or both...

This paper studies the representativeness of the Continuous Sample of Working Lives (CSWL), a set of anonymized microdata containing information on individuals from Spanish Social Security records. We examine several CSWL waves (2005–2013) and show that it is not representative for the...

This paper deals with life care annuities, i.e. bundled products comprising a life annuity and long-term care insurance. It aims to assess the cost of converting retirement benefit into a life care annuity with graded benefits using a pre-existing public pay-as-you-go pension scheme. With this...

This paper reviews the two main methods used by government Social Security departments to draw up the so-called actuarial balance of the pay-as-you-go pension system, focusing especially on results, methodology and actuarial issues. The specific models studied are those in the United States,...

Background: This paper examines the implicit healthy life expectancy (HLE) used for actuarial calculations in some selected biometric data sets from Australia, China, Portugal, Spain and the US. We are interested in checking the demographic and epidemiological coherence of these data sets...