as a member of the School Committee at New Haven (1877–1880) and the Connecticut Board of Education (1878–1881). Walker was awarded honorary or ad eundem degrees from Amherst (M.A. 1863, Ph.D. 1875, LL.D. 1882), Yale (M.A. 1873, LL.D. 1882), Harvard (LL.D. 1883), Columbia (LL.D. 1887), St. Andrews (LL.D. 1888), Dublin (LL.D. 1892), Halle (Ph.D. 1894), and Edinburgh (LL.D. 1896). He was elected as an honorary member of the Royal Statistical Society in 1875, a member of the American Antiquarian Society in 1876, and a member of the National Academy of Sciences in 1878 where he served as the vice president from 1890 until his death. In addition to being elected as the president of the American Statistical Association in 1882, he helped found and launch the International Statistical Institute in 1885 and was named its "President-adjoint" in 1893. Walker also served as the inaugural president of the American Economic Association from 1885 to 1892. He took appointments as a lecturer at Johns Hopkins University (its first professor of economics) from 1877 to 1879, lecturer at Harvard University in 1882, 1883, and 1896, and trustee at Amherst College from 1879 to 1889. Wages-fund theory Walker's scholarly contributions are widely recognized as having broadened, liberalized, and modernized economic and statistical theory with his contributions to wages, wealth distribution, money, and social economics. Although his arguments presage both neoclassical economics and institutionalism, he is not readily classified into either. As a Professor of Political Economy, his first major scholarly contribution was on his The Wages Question which set out to debunk the wage-fund doctrine as well as address the then-radical notion of obligations between the employer and the employed. His theory of wage distribution later came to be known as residual theory and set the stage for contributions by John Bates Clark on the marginal productivity theory. Despite Walker's advocacy of profit sharing and expansion of educational opportunities using trade and industrial schools, he was an avowed opponent of the nascent socialist movement and published critiques of Edward Bellamy's popular novel Looking Backward. Henry George debates Beginning in 1879, Walker and the political economist Henry George engaged in a prominent debate over economic rents, land, money, and taxes. Based on a series of lectures delivered at Harvard, Walker published his Land and Its Rent in 1883 as a criticism of George's 1879 Progress and Poverty. Walker's position on international bimetallism influenced his arguments