Abstract
Even though an extensive body of previous research has examined the association between received intergenerational support and the well-being outcomes of older adults in a wide variety of contexts, few studies have been conducted to explore the impacts of intergenerational support on elders' subjective well-being, especially the intermediary mechanisms in this process. The purpose of this study is to fill this gap by exploring the mediating role of optimism in the association between received intergenerational support and subjective well-being among the elderly in China, as well as the sex differences that exist between males and females. The findings show that the intergenerational support received from adult children is positively related to subjective well-being and that this relationship is partly mediated by optimism. Meanwhile, no significant sex difference was found in the interrelations between intergenerational support, optimism, and subjective well-being.