(Bloomberg) -- It’s the buzz word on Wall Street and in the hallways of the Federal Reserve and Treasury Department. It’s blamed for triggering bond selloffs, shifts in debt auctions and interest-rate policy. That few agree on what exactly it reflects, or how to measure it, seems to matter little — the term premium is a powerful new force in the market.Most Read from BloombergRockstar Plans to Announce Much Anticipated ‘Grand Theft Auto VI’US 30-Year Mortgage Rate Tumbles by Most in More Than a