Hacia la igualdad de trato en el acceso a la pensión de viudedad de las parejas estables: Algunas consideraciones sobre el concepto de pareja de hecho y las novedades de la Ley 21/2021, de 28 de diciembre, de garantía del poder adquisitivo de las pensiones

The variety of family models is a reality of our inclusive society. In this sense, stable couples have been consolidating over the years, but there are still some open questions to be resolved. One of these is equal access to a widow’s or widower’s pension, without differences depending on the Autonomous Community in which they live, a difference that Law 21/2021, of 28 December, on guaranteeing the purchasing power of pensions, highlights for the first time. That said, the aim of this paper is to delve into the causes of this discrimination, with the aim of presenting a lege ferenda proposal that will enable a solution to this problem that is also coherent throughout our legal system.