How the aging will reshape the world economy.

Courtesy The Economist

Courtesy The Economist

In the 20th century the planet's population doubled twice. It will not double even once in the current century, because birth rates in much of the world have declined steeply. But the number of people over 65 is set to double within just 25 years. This shift is not as momentous as the expansion that came before. But it is more than enough to reshape the world economy. Read more