Bullard became president of the Federal Reserve Bank of St. Louis in April 2008. He joined the bank in 1990 as an economist in the research division after receiving a doctorate in economics that year from Indiana University. He served as a vice president and deputy director of research at the St. Louis Fed before taking the top job.

Bullard's views are considered moderate. He was an early supporter of the second round of bond purchases the Fed announced in November 2010. But he initially opposed Evans' idea of linking Fed rate increases to a specific improvement in the unemployment rate.

In comments this month, Bullard suggested that if the unemployment rate fell to 7.1 percent by year's end, the Fed could consider ending its $85 billion-a-month bond buying program. But if unemployment doesn't improve, Bullard said the bond purchases would probably continue into 2014.

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