11.   The market selloff reflected resilient investor doubts about whether the government can extricate Russia from seemingly intractable debts.

12.   To be sure, plenty of investors doubt Japan will choose to shuck Treasuries to raise money when it can sell lower-yielding Japanese securities instead.

13.   Venezuelan Brady bond demand prices continued to rise on investor doubts whether the government will soon make more dollars available at the new exchange rate.

14.   Wheat futures jumped higher Wednesday on the Chicago Board of Trade, reflecting investor doubts that fresh rain in the Plains states will significantly boost the winter wheat crop.