CNBC.com | Euro Boosted on 'Fiscal Cliff' Optimism, Stocks Rally CNBC.com The euro rose for a second straight day against the dollar on Thursday, boosted by positive European news and increased expectations U.S. lawmakers will agree on a deal to avert higher taxes and spending cuts in the world's largest economy. Dollar Retreats on 'Cliff' Optimism FOREX-Euro rises on optimism of US fiscal cliff deal Dollar Gains on Concern Greece's Debt Deal Will Stall |