Alfred Marshall (1842-1924) was one of the most influential English economists of his time. Known as one of the founders of neoclassical economics, Marshall desired to improve the mathematical rigor of economics and transform it into a more scientific profession. Although he took economics to a more mathematically meticulous level, he did not want mathematics to overshadow economics. Marshall began his significant work, the «Principles of Economics,» in 1881 and spent much of the next decade at...