After spending their 20s in high-intensity jobs, many women leave or switch to part-time work when they have children.

WSJ: McKinsey Tries to Recruit Mothers Who Left the Fold

Mid and West Wales Fire Service was also criticised over plans to switch 21 full-time firefighters in Powys to community safety work, replacing them on emergency duties with volunteer crews.

BBC: Llanelli fire station: Authority to discuss shift row

Many believed that new technology would liberate us from the office but has it instead just blurred the line between work and home, leaving little time for employees to switch off.

BBC: Get a life

Once women began to work, typically part-time, and once employees began to switch jobs, defined-benefit schemes became inequitable.

ECONOMIST: Pensions: How's your pension doing? | The