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 proposes a procedure for selecting large subsamples drawn from a large simple random sample that are more representative of the population under study. By means of the so-called constant of proportionality, the procedure seeks to maximize the size of the subsample taken from a...

Spanish Abstract: En este trabajo se examina si los datos sobre pensiones incluidos en la Muestra Continua de Vidas Laborales (MCVL) son válidos para realizar cierto tipo de proyecciones sobre la sostenibilidad del sistema público de pensiones. Se analiza al conjunto de datos de prestaciones...

Spanish Abstract: En este trabajo se propone una metodología basada en la optimización para elegir sub-muestras de gran tamaño extraídas de una muestra aleatoria simple inicial que mejore la representatividad de la población objeto de estudio. El criterio se basa en maximizar el tamaño de...

Spanish Abstract: La Muestra Continua de Vidas Laborales (MCVL) es un conjunto de microdatos individuales anonimizados extraídos de los registros de la Seguridad Social de España. Es una fuente muy valiosa de información utilizada en numerosos estudios sobre Economía laboral y sobre el...

The aim of this paper is to examine differences in life expectancy (LE) between self-employed (SE) and paid employee (PE) workers when they become retirement pensioners, looking at levels of pension income using administrative data from Spanish social security records. We draw on the Continuous...

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 to 2013) and show that it is not representative for the...

This paper develops a social insurance accounting model for a notional defined contribution (NDC) scheme combining retirement and long-term care (LTC) contingencies. The procedure relies on standard double-entry bookkeeping and enables us to compile a “Swedish” type actuarial balance sheet...

This paper proposes a “Swedish” type actuarial balance sheet for a notional defined contribution scheme embedding disability insurance within the retirement pension system. The underlying framework supporting the actuarial balance relies on a multistate overlapping generations model that...

EU regulations since 2017 have required all Member States to disclose their accrued-to-date pension liabilities (ADL) using a standard actuarial cost method and some common assumptions. This applies to both Social Security (SS) schemes and unfunded defined benefit (DB) schemes covering civil...