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Will Twitter be worth its valuation?

Ahead of its debut on the New York Stock Exchange (NYSE) on Thursday, Twitter's shares have been priced at $26.

It values the short messaging service at more than $18bn (£11bn) - despite the fact it has never made any money.

The BBC's technology reporter Dave Lee discussed with World Business Report's Aaron Heslehurst whether Twitter can live up to the expectations of investors - without irritating its users.

Go to next video: Twitter shares priced at $26 each