The high U.S.unemployment rate, a resurgent Republican opposition and President Obama's shrinking approval ratings are making Democrats nervous as they face the November elections for Congress and governors.

VOA: standard.2010.02.06

The investment rate is telling you how much money you're really making on an annualized basis, so it's very simple.

投资收益率反映了基于一年来看,你实际赚了多少钱,非常简单

耶鲁公开课 - 金融市场课程节选