► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />Sterling is now higher against the dollar than it was at the end of 2012, yet the FTSE 100 is advancing at only half the pace of the S&P 500 and the Dax. Jamie Chisholm, global markets commentator, tells John Authers why the UK's main stock index does not reflect economic optimism<br /><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