The resilience of Treasuries represents a rebuke to the chorus of skeptics from Stanford University’s John Taylor to billionaire hedge fund manager Paul Singer and U.S. House Speaker John Boehner, who predicted the Fed’s unprecedented stimulus would lead to runaway inflation and spell doom for the bond market. It also suggests investors see few signs the five-year-old expansion will produce the kind of price pressures that would compel Fed Chair Janet Yellen to side with the central bank’s hawkish officials as they consider when to raise rates.