“…While a large body of literature has described and explained the spatial patterns of internal migration among older adults in developed countries and among all ages combined in China, little research has been done to investigate the mechanisms behind internal migration of older adults in China, the largest developing economy in the world, using nationwide datasets across periods of time. The drivers of and constraints on the migration of older adults may differ between China and developed countries due to different economic, social, cultural, and institutional contexts (Dou and Liu, 2017;Kou et al, 2018;Chen and Wang, 2020). In the Chinese case, enjoying a seasonal lifestyle has been found to be retirees' primary motive for flocking to Sanya ('the phenomenon of snowbirds'), a city renowned for its tropical climate and beautiful bays (Kou et al, 2018;Chen and Wang, 2020;Chen and Bao, 2021).…”