The job of the head of the board of governors of the Federal Reserve, says Janet Yellen, 67, "isn't just about fighting inflation or monitoring the financial system. It's about trying to help ordinary households get back on their feet and about creating a labor market where people can feel secure and work and get ahead." As fed chair -- a gender-neutral title she prefers over chairman or chairwoman -- this respected economist is now responsible for deciding where and how money flows in the U.S. So the world's largest economy is in her capable hands -- what's next? The first woman to head the Fed in its 100-year history, she moves up from vice chair at a tricky time: helping to slowly wean markets off the stimulus she helped design. There are detractors. Fed historian Allan Meltzer worries that Yellen "will be inclined to chase unemployment to the detriment of inflation," as Time magazine writes. Yes, but she's a "formidable economist and an impressive communicator," reminds the Guardian. "She has shrewdly navigated the crisis of the past five years, advocating robust, early intervention to prevent a 21st century Great Depression, and has focused unstintingly on unemployment." So how does Yellen feel? "I think we'll see stronger growth this year," she told Time magazine. "The recovery has been frustratingly slow, but we're making progress in getting people back to work, and I anticipate that inflation will move back toward our longer-run goal of 2 percent."