For over a century, the Department of Economics at MIT has played a leading role in economics education, research, and public service. Francis Amasa Walker, MIT’s third president, introduced undergraduate studies in economics more than one hundred years ago. Walker, who rose to the rank of Brigadier General in the Civil War and directed the 1870 U.S. Census, was a leading economist of his day. He was a founder and president of the American Economic Association. In the early part of the twentieth century, Davis R. Dewey, the editor of the American Economic Review for twenty years and a longtime chairman of the MIT Economics Department, played a major role in preserving and expanding economics at MIT. In 1937, the Department added graduate courses leading to a master’s degree. Four years later, in 1941, it inaugurated the Ph.D. program that is renowned worldwide. MIT’s approach to graduate training in economics has been widely emulated at other leading institutions.