A handsome man can earn a fifth more than a plainer colleague but a beautiful woman is not paid a penny more than her average-looking colleagues, new research has shown.

The study by senior economists found that good-looking _______ male workers could earn 22 percent more than colleagues who looked _______.

Researchers said good looks did not give women a similar _______.

Andrew Leigh, the former economics professor at the Australian National University who co-authored the report, said “_______ can be a double-edged sword for women.”

Some people still _______ good looks and intelligence are incompatible(矛盾的) in women so a good-looking woman can’t be that _______, but it doesn’t _______ men’s pay.

He said that _______ he believed good-looking women may also _______ more, the research did not ________ his theory.

The research found that ________ men in all jobs, from manual labor to highly-paid professional ________, can earn 22 percent more than their colleagues doing a/an ________ role.

Men with below-average looks face a battle in the office, with ugliness ________ a man’s earning by 26 percent ________ an average-looking worker.

Former male model Ian Mitchell, 28, who has a first class ________ in history from University of Edinburgh and now works for a cosmetic company, told The Sunday Times: “It gives you ________, and I suspect people ________ to warm to you more quickly.”

The study, entitled Unpacking the Beauty Premium, was the largest exercise of its kind and repeated a ________ from 1984 to see if the beauty premium had changed.

Leigh said the research showed people in the workplace were “lookist” and he hoped the findings would encourage ________ to reserve their prejudice.