Charles Plosser, president of the Federal Reserve Bank of... News PhotoAnnual Event,California,Central Bank,Charles Plosser,Discussion,Economy,Federal Reserve,Feeding,Government,Horizontal,Meeting,North America,Politics,President,San Diego,The Americas,The Media,USAPhotographer Collection: Bloomberg 2013 BloombergCharles Plosser, president of the Federal Reserve Bank of Philadelphia, pauses during a panel discussion at the American Economic Association's annual meeting in San Diego, California, U.S., on Friday, Jan. 4, 2013. Plosser said the last recession was a shock that seems to have permanently reduced the potential long-term growth of U.S. gross domestic product. Photographer: Sam Hodgson/Bloomberg via Getty Images