U.S. Federal Reserve chairwoman Janet Yellen's speech at the Federal Reserve Bank of Boston conference on inequality was remarkable in the clear focus on the increase in inequality of the last three decades. Yellen calls it "the most sustained rise in inequality since the nineteenth century." Yellen also described the stark inequality between the lower half of households and those at the top- "The lower half of households by wealth held just 3 percent of wealth in 1989 and only 1 percent in 2013. To put that in perspective... the average net worth of the lower half of the distribution, representing 62 million households, was $11,000 in 2013. About one fourth of these families reported zero wealth or negative net worth, and a significant fraction of those said they were "underwater" on their home mortgages, owing more than the value of the home." Without saying this explicitly Yellen has accepted the Fed's own role in this situation under Greenspan and Bernanke. Under Bernanke Yellen was vicechairwoman. Yellen participated in many of the decisions of the Fed that kept interest rates low- hurting savers and those who could not take the risks of a volatile stock market. Yet Yellen has shown courage in stating the problem with all the facts she could muster, and making clear that Fed sees the long term unemployed as a critical driver for Fed policy....