Universal retirement at a set age is a relatively modern concept. In 1900, 54% of French and 58% of Germans over 65 were working, according data presented by Dr. Marco Salvi of the Swiss think tank Avenir Suisse. © Gemphotography | Dreamstime.com In some countries, such as the US, Japan and Iceland, there were relatively high numbers of older workers until quite recently. In 1960, 29% of Americans over this age were working. In 1968, 34% of over 65s in Japan were in work. And, as recently as...
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