New Zealand lost its AAA grades on local-currency debt at Fitch Ratings and Standard & Poor’s, which both cited concerns about the nation’s fiscal burden. Benchmark government yields rose the most this year. The outlook is stable after the long-term local-currency rating was reduced one level to AA+ and the foreign-currency rating was cut to AA from AA+, S&P said in a statement, matching actions announced yesterday by Fitch. New Zealand joins the U.S. to Italy among nations whose sovereign credit ratings have been cut this year, as governments’ struggles to cope with their debt burdens roil financial markets. Fitch’s ... (full story)