Just Eat, the online takeaway, rose on its debut on the London Stock Exchange. Lex's Joseph Cotterill and Oliver Ralph discuss whether the business plan of such internet fast food brokers is sustainable (or whether it will be tomorrow's fish and chip papers).<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Subscribe to the Financial Times on YouTube; http://goo.gl/vUQx5k<br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
