A Government review into zero-hours contracts is set to publish its findings in July, according to Employment Minister Esther McVey.
More than 30,000 responses were sent to a consultation started as part of Business Secretary Vince Cable's review into the use of the contracts.
Estimates suggest around 580,000 to one million workers are on zero-hours deals although unions believe the number could be higher.
The coalition insists it will not ban the contracts, which result in people not knowing if they have work from one week to the next, but it wants to ensure workers get a "fair deal".
Speaking in the Commons today, Ms McVey told MPs: "We are doing a full review on zero-hour contracts and where we find they are exploitative, we will be bringing about changes and our report will be due in July, something that Labour didn't do for 13 years."
Ms McVey was replying to Labour's Alison McGovern (Wirral South), who had asked: " Can I ask you of the young people you have mentioned who have got a job how many of those have gone on to work on zero-hours contracts?"
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