- France: 6.3 percent
- UK: 5.5 percent
- Germany: 5.5 percent
- US: 5.4 percent
- Australia: 3.9 percent
The report's author, Andrew Chamberlain, chief economist at Glassdoor, said overt discrimination was not the primary reason for the pay gap.
"Women and men tend to pursue different career paths early in life and then sort into different industries and occupations, which, in large part, is due to a variety of societal expectations and traditional gender norms. This is the single largest factor we see contributing to today's gender pay gap," he said in a media release on Wednesday.
Chamberlain advocated salary transparency to help eliminate hard-to-justify pay gaps, as well as government policies to alleviate social pressures that push the sexes into different career paths and left women with a disproportionate share of child and elderly caregiving duties.
The U.K.'s Office for National Statistics reported last year that the gender pay based on median earnings had decreased to 9.4 percent from 9.6 percent in 2014. This was the lowest since surveying began in 1997, but the gap has changed relatively little in recent years.
Globally, women earn only 77 percent of what men do, according to estimates from the International Labour Organization. The gap has declined somewhat, but if current trends prevail, it will take more than 70 pears to close completely, the body said in a report this month.
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