SE Asia Stocks-Mostly up after Yellen's speech; Singapore outperforms
March 30 (Reuters) - Most Southeast Asian stock markets rose on Wednesday, led by financials after U.S. Federal Reserve Chair Janet Yellen's speech gave some cues about the pace of future interest rate hikes and calmed down investor sentiment. Yellen on Tuesday emphasised global dangers to growth and inflation, and thus the need to proceed "cautiously" on tightening policy. Her speech scaled back expectations for how fast and how far U.S. interest rates might rise this year, pushing bac