Adam Posen, a former U.K. rate-setter with a reputation as a "dove" who consistently played down inflation concerns and favored greater central-bank stimulus, told Parliament last month that abandoning the inflation target would be a "grievous error" that would raise unnecessary concerns over the U.K.'s commitment to sound money.
The first of Washington third baseman Ryan Zimmerman's pair of errors came with two outs in the fifth of a scoreless game, an off-target throw (he made a fielding error in the seventh).
In 2009, HMRC set itself a target of halving the rate of tax credit fraud and error from 9% to 5% by March 2011 and diverted around 400 extra staff to help with the effort.
The expectation that an index fund will get EXACTLY the return of the target index sets the stage for an interesting problem: Zero tracking error is achievable, but it comes at a very high price.