► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />After another ugly Wall Street sell-off, John Authers looks at history. Without a recession, bear markets tend to be short and shallow.<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