eprintid: 3518 rev_number: 14 eprint_status: archive userid: 6 dir: disk0/00/00/35/18 datestamp: 2016-07-19 08:36:41 lastmod: 2016-07-19 08:36:41 status_changed: 2016-07-19 08:36:41 type: monograph metadata_visibility: show creators_name: Jevtić, Petar creators_name: Regis, Luca creators_id: creators_id: luca.regis@imtlucca.it title: A continuous-time stochastic model for the mortality surface of multiple populations ispublished: pub subjects: HB divisions: EIC full_text_status: public monograph_type: imt_eic_working_paper keywords: Keywords: multi-population mortality, mortality surface, continuous-time stochastic mortality, Kalman filter estimation, centralized data fusion. JEL classification: C13, C38, G22, J11. abstract: We formulate, study and calibrate a continuous-time model for the joint evolution of the mortality surface of multiple populations. We model the mortality intensity by age and population as a mixture of stochastic latent factors, that can be either population-specific or common to all populations. These factors are described by affine time-(in)homogenous stochastic processes. Traditional, deterministic mortality laws can be extended to multi-population stochastic counterparts within our framework. We detail the calibration pro- cedure when factors are Gaussian, using centralized data-fusion Kalman filter. We provide an application based on the mortality of UK males and females. Although parsimonious, the specification we calibrate provides a good fit of the observed mortality surface (ages 0-99) of both sexes between 1960 and 2013. date: 2016-07 date_type: published number: 3 publisher: IMT School for Advanced Studies Lucca pages: 31 institution: IMT School for Advanced Studies Lucca issn: 2279-6894 citation: Jevtić, Petar and Regis, Luca A continuous-time stochastic model for the mortality surface of multiple populations. EIC working paper series #3/2016 IMT School for Advanced Studies Lucca ISSN 2279-6894. document_url: http://eprints.imtlucca.it/3518/1/EIC_WP_3_2016.pdf