Fed Chairman Ben Bernanke said the large amounts of money the U.S. central bank has pumped into the economy will not undercut its ability to push borrowing costs higher when the time is ripe. “Accommodative policies will likely be warranted for an extended period,” Bernanke wrote in the article published on the WSJ’s Web site. “At some point, however, as economic recovery takes hold, we will need to tighten monetary policy to prevent the emergence of an inflation problem down the road.” [WSJ]