How aging trends across East Asia, Europe, Africa will shape global migration and po

[MatthewYT]

I'm a policy analyst working on a long-term strategic report for a government agency, and I need to contextualize our national aging population within broader global demographic trends. While we have data on declining birth rates and increased life expectancy domestically, I'm trying to understand the varying pace of this transition in different regions, particularly comparing East Asia, Europe, and parts of Africa. How are these divergent trends likely to influence future global migration patterns, economic power shifts, and international policy priorities over the next fifty years? Are there any under-discussed secondary effects, like changes in global disease burdens or shifts in consumer markets, that we should be factoring into our analysis?