Surprise: U.S. Economic Data Have Been the World's Most Disappointing

``Citigroup keeps economic surprise indexes for the world, and its scoreboard shows the U.S. is most disappointing relative to consensus forecasts, with Latin America and Canada next, as of March 12. Emerging markets were supposed to be hurt by falling oil prices but are now delivering positive surprises. U.S. policymakers frequently talk about weakness in Europe and China, though both are exceeding expectations.''