► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />Crude oil prices fell again, bringing stock markets down and bond prices up. John Authers suggests investors are nervous that the sell-off may be driven by weak demand, as well as strong supply - and finds the winners and losers.<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
