Focusing on face time can disadvantage women, especially mothers, in other ways.

CNN: Benefit of office face time a myth

"Having to redo the work so close to the exams will put them at a disadvantage compared with all the other schools in the country - they will have less time to concentrate on the rest of the GCSEs that they have to revise for, " she said.

BBC: Highcliffe School apologises for GCSE blunder

BrightSource hopes that in time its technology will prove sufficiently efficient and reliable to overcome the disadvantage of having to raise so much capital.

ECONOMIST: Some solar plants need to be big; most of them don��t

This has put the Chinese producers at a disadvantage at a time when they felt their heft should give them a preferred rate in the annual negotiations.

ECONOMIST: Rio Tinto and China

It is not the first time in this Six Nations that England have had to play with a man disadvantage.

BBC: Indiscipline angers boss Johnson