Different definition of economics by different economist?

Answer 1

>Jevons, William Stanley (jĕv'ənz) , 1835-82, English economist and logician. After working in Australia as assayer to the mint, he taught at Owens College, Manchester, and University College, London. His major contribution to economics was his marginal utility theory of value; Jevons held that value was determined by utility, and he demonstrated the relationship in mathematical terms. The Theory of Political Economy (1871) was his chief theoretical work. His practical application of economics in The Coal Question (1865) influenced government action. In General Mathematical Theory of Political Economy(1862), he demonstrated his belief in the application of mathematics to economic theory. His several texts include Pure Logic (1863) and The Principles of Science (1874). >Marshall, Alfred, 1842-1924, English economist. At Cambridge, where he taught from 1885 to 1908, he exerted great influence on the development of economic thought of the time; one of his students was John Maynard http://www.answers.com/topic/john-maynard-keynes. He systematized the classical economic theories and made new analyses in the same manner, thus laying the foundation of the neoclassical school of economics. He was concerned with theories of costs, value, and distribution and developed a concept of marginal utility. His Principles of Economics (1890) was for years the standard work and is still widely read. Among his other works are Industry and Trade (1919) and Money, Credit, and Commerce (1923). >Robbins, Lionel Charles, 1898-1984, British economist, b. Middlesex, England. A professor at the London School of Economics (1929-61), he wrote the well-known methodological treatise, An Essay in the Nature and Significance of Economic Science (1932). A supporter of the free market system and an opponent of http://www.answers.com/topic/john-maynard-keynes, his work was influential in the advancement of economics as a philosophy and science. As chairman of the Committee on Higher Education (1961-64), Robbins was instrumental in bringing about significant reforms in the British university system.