However, zero hours contracts have rarely been used for highly skilled white collar staff.
Labour MPs and trade unions say zero hours contracts strip workers of their rights and are exploitative.
More than 200, 000 British workers are on zero hours contracts, according to the Office for National Statistics.
But he said the Labour leader should "go further" and vow to ban so-called zero hours contracts as well.
Labour should pledge to ban "zero hours contracts" at the next election, shadow health secretary Andy Burnham has said.
At the height of privatisation and contracting out, zero hours contracts were seen as a model of flexibility and cost-saving.
Holyrood's Economy committee said there had been a rise in temporary contracts, zero hours contracts, self-employment, and part-time working for these groups.
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An ordinary employment contract has it, a zero hours contract does not.
Everybody I know is going to a Super Bowl party, including my football-ambivalent wife, who has watched exactly zero hours and zero minutes of NFL action this year.
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This is why zero hours contracts normally go hand-in-hand with "banks" of employees, so that if one individual says no, there will always be someone else on hand to say yes.
Zero hours contracts became popular in the late 1980s and 1990s, and are inextricably linked with low-paid jobs, a lack of employment rights and only being paid for the work you actually do.
"Five thousand nursing jobs have been lost since the election, zero hours contracts are being introduced and these draconian steps in the South West are a sign of the growing panic engulfing the NHS".
The ability to deliver the work on the part of the employer disappears because the critical difference between an ordinary employment contract and a zero hours contract is the legal concept mentioned earlier of "mutuality of obligation".
In a zero hours scenario, if cardiology is having a quiet day, the cardiologist might be asked to spend the day at home, unpaid, watching television or doing the gardening, rather than being paid by his or her NHS Trust for tidying the desk.
Until recently the only equipment for spotting a suitcase bomb was an unwieldy machine the size of a refrigerator, using liquid nitrogen to cool crystal detectors down to 300 degrees below zero and taking hours to produce a reading.
Until recently the only equipment for spotting a suitcase bomb was an unwieldy machine the size of a refrigerator that used liquid nitrogen to cool crystal detectors down to 184 degrees Celsius below zero and took hours to produce a reading.
You have to understand, after spending 12-15 hours at ground zero, the air in this area is very heavy, it's almost suffocating.
The number of reported bids as the final hours fritter away: zero.
The government can promise a higher wage rate, but if a worker loses her job, her income (hourly wage x hours worked) will be zero.
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This has been achieved through extensive development, strict quality control, and a stringent pre-production testing requirement of 400 drives passing 500 hours of intensive tests with zero errors.
While you could certainly call a tow truck, when temperatures dip near or below zero you may have to wait several hours before a technician is able to come to the rescue.
It was only when the design was able to pass strict enterprise-grade Zero Error standard of 400 units surviving 500 hours of the toughest continuous testing without a single error or failure that the drive was manufactured.
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It was thought the band's comeback single, Something New, would be revealed when the clock reached zero on Friday, but it was hastily unveiled on Tuesday hours after it leaked online.
In three hours I consumed: eight glasses of water, two cans of Coke Zero, a large strawberry and protein powder smoothie, and a 20 oz. bottle of Gatorade.
The jury seemed to zero in on the science, asking to reread all the testimony about the neuroscience during 10 hours of deliberation.
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