Risk pooling, reciprocity, and voluntary association

What follows is a sketch of three of the main claims of How to Pool Risks across Generations: The Case for Collective Pensions (Otsuka 2023) with which my symposium commentators critically engage: namely, that (1) by efficiently pooling risks across as well as within generations, (2) collective pensions can realize a form of Rawlsian reciprocity involving fair terms of cooperation for mutual advantage, (3) through the voluntary binding agreements of individuals to join a mutual association that provides social insurance. I respond to their challenges to these claims in my replies that follow their contributions.