► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />After a wild day of trading on world markets, John Authers suggests that the yuan's appreciation late in the day may have sent a more important signal than its earlier devaluation.<br /><br />► Authers’ Note: http://bit.ly/1Liu16x <br /><br />► FT Markets: http://bit.ly/1J5HNd3<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
