Groupon employees in front of Groupon Logo
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Groupon set to launch a roadshow to attract investors

The US discount sales website, Groupon, launches a roadshow this week to persuade investors to buy into its stock market debut.

It says it plans to raise more than $620m from investors, paying between $16-18 per share.

That values the company at $11.4bn, a far cry from the $30bn valuation that was being talked about before the stock market turmoil this summer.

Caroline Hepker reports from New York.