► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />Miles Johnson explains how Japanese equities have served as an early warning sign for sell-offs in US equities over the past 20 years.<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
