► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />On the day the FTSE-100 hit a new high, words from Janet Yellen of the Fed also helped US stocks to a fresh record. John Authers reports that she is preparing to abandon patience, in favour of data dependence.<br /><br />► FT Markets: http://bit.ly/1J5HNd3<br /><br />► Authers’ Note: http://bit.ly/1Liu16x <br /><br />Click here for more Authers Note videos <br />http://video.ft.com/Authers-Note<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