Who defined economic as "economics is that part of knowledge which relates to wealth"
This question gives information about economist F.A.Walker: Francis A. Walker, in full Francis Amasa Walker, (born July 2, 1840, Boston, Massachusetts, U.S.—died January 5, 1897, Boston), American economist and statistician who broadened and helped modernize the character and scope of economics, defined economics as “ science of wealth” in 1875 he work out on residual theory of wages.