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 article aims to quantify the "aggregate subjective economic" risk to which beneficiaries would be exposed if a retirement pension system based on notional account philosophy were introduced. We use scenario generation techniques to make projections of the factors that determine the real...

The aim of this work is twofold, on the one hand, to demonstrate the actuarial imbalance of the Spanish pension system in its current configuration, and on the other, to measure the aggregate economic risk to which the pensioner would be exposed if it were decided to apply ten formulas for the...

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...

Pearson's chi-square test is widely employed in social and health sciences to analyze categorical data and contingency tables. For the test to be valid, the sample size must be large enough to provide a minimum number of expected elements per category. This paper develops functions for...

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...

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...

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...