They write: ‘In many countries, lower productivity among older workers is used as a motivation for early retirement policies.

　　他们说，“在世界上的很多国家，抱怨年老员工工作效率低下通常是劝道他们提前退休的理由。”

　　‘If this were true, the ageing populations in many developed countries would have negative effects on overall productivity. These results cast doubt on such beliefs.’

　　“如果我们的想法是正确的，那么在很多发达国家中的老龄人口将对于社会的整体创造力产生负面影响。但研究的结果却与这样的观点背道而驰。”

　　The researchers argue that in sectors where physical strength is less important than in manufacturing, such as in the service sector, it is likely that older workers are even more productive.

　　研究者们认为，体能再现在生产中所占的重要性正在降低，例如在服务业中，年长员工的工作效率更高。

　　The researchers also found that a higher proportion of women in the workforce is bad for productivity in young teams and good in old teams.

　　研究者们还发现，在年轻的团队中，女性所占比例过高将对效率产生反作用，但这样的情况在年长的团队中刚好相反。

　　They say women make fewer errors, but young male workers get distracted, and are likely to make more errors, if women are in the team.

　　他们表示，女性出错的几率更低，但却会使得年轻的男性员工分心，团队中若有女性的存在，会使得他们更容易出错。