Inflation expectations are solidly anchored in the euro zone, European Central Bank President Jean-Claude Trichet said Thursday. Trichet added that the ECB will act promptly to keep these expectations anchored, speaking at a conference organized by the Austrian central bank and Austria's chamber of industry. The ECB is widely expected to raise interest rates by 25 basis points at its June 8 policy meeting. The key refinancing minimum bid rate stands at 2.50% now.