From 1983 through 1987, Moore served as the Grover M. Hermann Fellow in Budgetary Affairs at the Heritage Foundation. Moore also was a fellow of the Cato Institute, a libertarian think tank. Moore was the senior economist of the U.S. Congress Joint Economic Committee under Chairman Dick Armey of Texas. There, _he_was also an architect of the Armey flat tax proposal in 1995. <sep>, Pronoun: he