The longevity dividend: health as an investment by S. Jay Olshansky, PhD, John Beard, PhD, and Axel Borsch-Supan, PhD
The ageing of humanity is accelerating. While a small number of people is known to have lived to extreme old age throughout recorded history, it is only in the modern era that an unprecedented number is approaching old age with regularity. ... [W]hile the demographic changes we are experiencing will almost certainly present challenges, we contend that older people are a highly significant and often underutilized resource to their community and to society as a whole. The key to unlocking this resource is health.