A pitbull with lipstick may not be every woman's idea of a role model.

Indeed, many liberal women hate everything arch-Republican US vice Presidential candidate and self-proclaimed hockey mother Sarah Palin stands for, even as conservatives are enamoured by her down-to-earth leadership style and jokes such as one comparing hockey moms to attack dogs with lipstick.

But like her or loathe her, women around the globe are fascinated by Ms Palin's juggling act as an aspiring Vice President, governor of Alaska and mother of five.

Combining a career with motherhood is a battle familiar to millions of working women who are often accused of failing to look after their children properly.

"It's seriously stressful having a family and holding down a career.

"I often feel guilty," said Gill Thomas, a 43-year-old lawyer with a two-year-old daughter and five-year-old son.

"Childcare is alright until the kids are sick. That's when it's a nightmare and I do feel as if colleagues, family and friends sometimes disapprove of my lifestyle."

Getting women to have children and work poses a conundrum for governments who have begun to realise that women hold the answer to the dual challenges of achieving long-term economic growth and boosting sagging birth rates.

Closing the gap between male and female employment would dramatically boost the economies of OECD countries - by up to 13 per cent in the eurozone and even more in Japan, say Goldman Sachs economists.

"This is an issue that is agitating policymakers across the world," said Alison Maitland, a UK-based academic and writer specialising in women in business.

"There is a huge gap between women's talents and skills and the use of that potential. It requires a concerted effort by governments and the private sector in collaboration," she said.

What's more, nations with a high proportion of women in work, such as the Nordic States and France, tend to have high birth rates. Meanwhile, countries with fewer working women, such as Italy and Japan, often have lower birth rates.

On the face of it, Germany, which three years ago elected Angela Merkel as its first female chancellor, is a positive example, as it has a relatively high share of women in the labour force compared to other OECD nations.

But a deeper look tells a different story.

Not only do 20 per cent of women aged 25 to 54 work less than 20 hours a week but the maternal employment rate is below the OECD average, says Frankfurt-based Deutsche Bank analyst Claire Schaffnit-Chatterjee.

Ms Merkel, who has no children, exemplifies this trend which may help explain why women account for only a quarter of Germany's senior managers and a third of its federal lawmakers.

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