ABSTRACT
Declining birth rates and aging populations in post-industrial countries such as Japan and Spain present significant socioeconomic challenges, including a shrinking workforce, economic stagnation, and rising healthcare and pension costs. Japan’s demographic shift has progressed from an aging society in 1970 to a hyper-aged society by 2018, with 38% of the population projected to become elderly by 2050. Spain is experiencing a similar trend, with its elderly population expected to reach 30% by 2050. Both countries are experiencing an increase in single-person households, driven by longer life expectancies. In Japan, these households are projected to grow from 26% in 1995 to 39% by 2040, whereas in Spain, they are expected to increase from 13% in 1991 to 30% by 2037. Both nations are grappling with rising public pensions and healthcare expenditures owing to their aging populations. Immigration has provided temporary relief, with Spain’s more open approach in contrast to Japan’s traditionally restrictive policies, although Japan has recently shown some flexibility. This chapter examines these demographic shifts, the resulting financial pressures, and crucial implications for future policy.
