The world's largest miner has proposed demerging unwanted assets into a separate listed company to create value. Shares in BHP Billiton, however, fell on Tuesday. Lex’s Robert Armstrong and Joseph Cotterill discuss whether the proposals go far enough.<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