_The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "contrast" appeared
2011-06-16 : Economic diversity on both sides of the Atlantic2009-06-05 : The times of unprecedented challenges
2008-01-16 : A few remarks on communication by central banks
2006-01-20 : Growth performance, labour productivity and structural reforms in the euro area
2005-11-10 : Growth potential, labour productivity and structural reforms in Europe