"they found that everyone became less productive in an aging state."
On the other hand:
"Older workers may be slower to adapt to new technology. If laid off from a dying industry, their experience may be irrelevant to a new one. Older workers are more likely to suffer from injury or illness and less likely to have a college degree."
From the research, it would appear that the balance is in favor of including the aging workers in the work force.
I'd postulate that, as much as teaching younger workers 'tricks of the trade', older workers also may steer efforts around mistakes. "We tried that before and it didn't work because...".
"they found that everyone became less productive in an aging state."
On the other hand:
"Older workers may be slower to adapt to new technology. If laid off from a dying industry, their experience may be irrelevant to a new one. Older workers are more likely to suffer from injury or illness and less likely to have a college degree."
From the research, it would appear that the balance is in favor of including the aging workers in the work force.
I'd postulate that, as much as teaching younger workers 'tricks of the trade', older workers also may steer efforts around mistakes. "We tried that before and it didn't work because...".