Business owner Katie Hopkins said it was vital to cut back the "red tape" of maternity legislation for small businesses, and that women are starting to "legislate themselves out of the workplace."
In the studio with Katie O'Donovan from Mumsnet to discuss the discrimination reported by a quarter of working mothers, she said:
"I think what you hear out there on the market from small businesses is that given the choice between a man or a woman, would I take on a women? No I would not. I think women are starting to legislate themselves out of the workplace. "
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Mr Kim has made two recent visits to China.
The study looked at the development of 422 children over the course of eight years.
The president said they will come into force if China refuses to change its practices.