Global bond yields fell to a record, a warning sign for the worldwide economy. The yield on the Bank of America Corp. Global Broad Market Index plunged to 1.3 percent, the lowest level in almost 20 years of data. Bonds in the gauge have returned 3.6 percent in 2016, while the MSCI All Country World Index of shares has slumped 1.5 percent, including reinvested dividends. A third of the world’s developed-market sovereign debt has negative yields, based on Bloomberg bond indexes, after Europe and Japan cut interest rates below zero to counter deflation. Investors rushed to higher-yielding debt, fueling the global rally. ... (full story)