Sharp decline in U.S. dollar lifts stocks, oil

The U.S. dollar fell sharply on Friday and posted its biggest weekly decline against the euro in more than three years, helping to drive a rally in Wall Street stocks and crude oil. The Nasdaq posted its highest close in 15 years on Friday and had a weekly gain of 3.2 percent. Riskier assets like equities had a strong week in general, largely driven by the Federal Reserve's policy statement on Wednesday, which struck a more dovish tone than investors had expected.