4
Published 2017
OECD Publishing

5
Published 2012
Corporación de Investigación, Estudio y Desarrollo de la Seguridad Social 

7
Published 2014
Corporación de Investigación, Estudio y Desarrollo de la Seguridad Social 

8
Published 2018
OECD Publishing

9
Published 2018
International Labour Organization

10
Published 2020
OECD Publishing

11
Published 2018
International Labour Organization

12
Published 2020
OECD Publishing

13
Published 2019
OECD Publishing

15
Published 2020
OECD Publishing

16
Published 2020
OECD Publishing

20
Published 2020
OECD Publishing