Irving Fisher


Irving Fisher

Infobox_Scientist
name = Irving Fisher



caption = Irving Fisher, 1927
birth_date = Birth date|1867|2|27|mf=y
birth_place = Saugerties, New York, U.S.A.
death_date = Death date and age|1947|4|29|1867|2|27|mf=y
death_place = New York City, New York, U.S.A.
residence = U.S.
nationality = American
field = Economics
work_institution = Yale University 1890-1935
alma_mater = Yale University Ph.D. 1891
doctoral_advisor = Willard Gibbs William Graham Sumner
doctoral_students =
known_for = Mathematical economics Fisher equation Equation of exchange
Price index Phillips curve Money illusion Fisher separation theorem
prizes =
religion =
footnotes =

Irving Fisher (February 27 1867 Saugerties, New York – April 29 1947, New York) was an American economist, health campaigner, and eugenicist, and one of the earliest American neoclassical economists and, although he was perhaps the first celebrity economist, his reputation today is probably higher than it was in his lifetime. Several concepts are named after him, including the Fisher equation, Fisher hypothesis and Fisher separation theorem.

Biography

Early adulthood

Fisher's father was a teacher and Congregational minister, who raised his son to believe he must be a useful member of society. The young Irving had mathematical ability and a flair for invention. A week after he was admitted to Yale University, his father died at age 53. Irving carried on, however, supporting his mother, brother, and himself, mainly by tutoring. He graduated from Yale with a B.A degree in 1888, where he was a member of Skull & Bones.

Fisher's best subject was mathematics, but economics better matched his social concerns. He went on to write a doctoral thesis combining both subjects, on mathematical economics. Irving was granted the first Yale Ph.D. in economics, in 1891. His advisors were the physicist Willard Gibbs and the economist William Graham Sumner. Fisher did not realise at the outset that there was already a substantial European literature on mathematical economics. Nevertheless, his thesis made a contribution European masters such as Francis Edgeworth recognised as first rate. He constructed a wonderful machine of pumps and levers to complement and illustrate his thesis. While his books and articles on economic topics exhibited unusual (for the time) mathematical sophistication, Fisher always wished to bring his analysis to life and to present his theories in a very lucid manner.

This research into basic theory did not touch the great social issues of the day. Monetary economics "did" and this became the main focus of Fisher’s work. In the 1890s the United States was divided over the question of the monetary standard. Should the dollar float, be fixed in terms of gold or silver, or some combination of the two? To opt for one system was to choose between West and East, farmer and financier, debtor and creditor, …. Fisher’s "Appreciation and interest" was an abstract analysis of the behaviour of interest rates when the price level is changing. It emphasised the distinction between real and monetary rates of interest which is fundamental to the modern analysis of inflation. However Fisher believed that investors and savers—people in general—were afflicted in varying degrees by “money illusion”; they could not see past the money to the goods the money could buy. In an ideal world, changes in the price level would have no effect on production or employment. In the actual world with money illusion, inflation (and deflation) did serious harm.

Later life

Fisher was a prolific writer, producing journalism, as well as technical books and articles, addressing the problems of the First World War, the prosperous 1920s and the depressed 1930s. Fisher was an enthusiastic supporter of Herbert Hoover.

Economic theories

Money and the price level

Fisher's theory of the price level was the following variant of the quantity theory of money. Let "M"=stock of money, "P"=price level, "T"=amount of transactions carried out using money, and "V"= the velocity of circulation of money. Fisher then proposed that these variables are interrelated by the Equation of exchange:

:"MV"="PT".

Later economists replaced the amorphous "T" with "Q", real output, nearly always measured by real GDP.

Fisher was also the first economist to distinguish clearly between real and nominal interest rates:

:r = (1+i)/(1+inflation)-1

where "r" is the real interest rate, i is the nominal interest rate, and inflation is a measure of the increase in the price level. When inflation is sufficiently low, the real interest rate can be approximated as the nominal interest rate minus the expected inflation rate. The resulting equation bears his name.

For more than forty years, Fisher elaborated his vision of the damaging “dance of the dollar” and devised schemes to “stabilise” money, i.e. to stabilise the price level. He was one of the first to subject macroeconomic data, including the money stock, interest rates, and the price level, to statistical analysis. In the 1920s, he introduced the technique later called distributed lags. In 1973, the "Journal of Political Economy" reprinted his 1926 paper on the statistical relation between unemployment and inflation, retitling it as "I discovered the Phillips curve". Index numbers played an important role in his monetary theory, and his book "The Making of Index Numbers" has remained influential down to the present day.

The theory of interest and capital

While most of Fisher's energy went into "causes" and business ventures, and the better part of his scientific effort was devoted to monetary economics, he is best remembered today for his theory of interest and capital, studies of an ideal world from which the real world deviated at its peril. His most enduring intellectual work has been his theory of capital (economics), investment, and interest rates, first exposited in his "The Nature of Capital and Income" (1906) and elaborated on in "The Rate of Interest" (1907). His 1930 treatise, "The Theory of Interest", summed up a lifetime's work on capital, capital budgeting, credit markets, and the determinants of interest rates, including the rate of inflation.

Fisher saw that subjective economic value is not only a function of the amount of goods and services owned or exchanged but also of the moment in time when they are purchased. A good available now has a different value than the same good available at a later date; value has a time as well as a quantity dimension. The relative price of goods available at a future date, in terms of goods sacrificed now, is measured by the interest rate. Fisher made free use of the standard diagrams used to teach undergraduate economics, but labelled the axes "consumption now" and "consumption next period" instead of, e.g., "apples" and "oranges." The resulting theory, one of considerable power and insight, was exposited in considerable detail in "The Theory of Interest"; for a concise exposition, click [http://cepa.newschool.edu/het/essays/capital/fisherinvest.htm here.]

This theory, since generalized to the case of "K" goods and "N" periods (including the case of infinitely many periods) using the notion of a vector space, has become the canonical theory of capital and interest in contemporary economics; for an exposition see Gravelle and Rees (2004). The nature and scope of this theoretical advance was not fully appreciated, however, until Hirshleifer's (1958) reexposition, so that Fisher did not live to see this theory's ultimate triumph.

tock market crash of 1929

The stock market crash of 1929 and the subsequent Great Depression cost Fisher much of his personal wealth and academic reputation. He famously predicted, a few days before the Stock Market Crash of 1929, "Stock prices have reached what looks like a permanently high plateau." " Irving Fisher stated on October 21st that the market was "only shaking out of the lunatic fringe" and went on to explain why he felt the prices still had not caught up with their real value and should go much higher. On Wednesday, October 23rd, he announced in a banker’s meeting “security values in most instances were not inflated.” For months after the Crash, he continued to assure investors that a recovery was just around the corner. Once the Great Depression was in full force, he did warn that the ongoing drastic deflation was the cause of the disastrous cascading insolvencies then plaguing the American economy because deflation increased the real value of debts fixed in dollar terms. Fisher was so discredited by his 1929 pronouncements and by the failure of a firm he had started that few people took notice of his "debt-deflation" analysis of the Depression. People instead eagerly turned to the ideas of Keynes. Fisher's debt-deflation scenario has made something of a comeback since 1980 or so.

Personal ideals

The lay public perhaps knew Fisher best as a health campaigner and eugenicist. In 1898 he found that he had tuberculosis, the disease that killed his father. After three years in sanatoria, Fisher returned to work with even greater energy and with a second vocation as a health campaigner. He advocated vegetarianism, avoiding red meat, and exercise, writing "How to Live: Rules for Healthful Living Based on Modern Science", a USA best seller.

In 1912 he also became a member of the scientific advisory to the Eugenics Record Office and served as the secretary of the American Eugenics Society.

Fisher was also a strong believer in the now-ridiculed "focal sepsis" theory of physician Henry Cotton, who believed that mental illness was attributable to infectious material residing in the roots of the teeth, recesses in the bowels, and other places in the human body, and that surgical removal of this infectious material would cure the patient's mental disorder. Fisher believed in these theories so thoroughly that when his daughter Margaret was diagnosed with Schizophrenia, Fisher had numerous sections of her bowel and colon removed at Dr. Cotton's hospital, eventually resulting in his daughter's death. ["Madhouse: A Tragic Tale of Megalomania and Modern Medicine", Andrew Scull, Yale University Press, 2005]

Fisher was also an ardent supporter of the Prohibition of alcohol in the United States, and wrote three short books arguing that Prohibition was justified on the grounds of both public health and hygiene, as well as economic productivity and efficiency, and should therefore be strictly enforced by American government. [Irving Fisher: Prohibition at Its Worst (New York: Macmillan, 1926); Prohibition Still at Its Worst (New York: Alcohol Information Committee, 1928); The Noble Experiment (New York: Alcohol Information Committee, 1930).]

See also

*Marginalism

elected publications

Fisher, Irving Norton, 1961. "A Bibliography of the Writings of Irving Fisher" (1961). Compiled by Fisher's son; contains 2425 entries.
*Primary
** 1892. "Mathematical Investigations in the Theory of Value and Prices".
** 1896. "Appreciation and interest".
** 1906. "The Nature of Capital and Income".
** 1907. "The Rate of Interest".
** 1910. "Introduction to Economic Science".
** 1911. "The Purchasing Power of Money: Its Determination and Relation to Credit, Interest, and Crises".
** 1911. "Elementary Principles of Economics".
** 1915. "How to Live" (with Eugene Lyon Fisk).
** 1921, "The best form of index number," "American Statistical Association Quarterly".
** 1922. "The Making of Index Numbers".
** 1923, "The Business Cycle Largely a `Dance of the Dollar'," "Journal of the American Statistical Society".
** 1926, "A statistical relation between unemployment and price changes," "International Labour Review".
** 1927, "A statistical method for measuring 'marginal utility' and testing the justice of a progressive income tax" in "Economic Essays Contributed in Honor of John Bates Clark ".
** 1930. "The Stock Market Crash and After".
** 1930. "The Theory of Interest".
** 1932. "Booms and Depressions".
** 1933, "The debt-deflation theory of great depressions," "Econometrica".
** 1933. "Stamp Scrip".
** 1935. "100% Money".
** "The Works of Irving Fisher." edited by William J. Barber et.al. 14 volumes London : Pickering & Chatto, 1996.

*Secondary
**Allen, R. L., 1993. "Irving Fisher: A Biography".
**Fisher, Irving Norton, 1956. "My Father Irving Fisher".
**Gravelle, H., and Rees, R., 2004. "Microeconomics", 3rd ed. Pearson Education. Chpt. 11.
**Jack Hirshleifer, 1958, "The Theory of Optimal Investment Decisions," "Journal of Political Economy 66": 329-352.
**Sasuly, Max, 1947, "Irving Fisher and Social Science," "Econometrica 15": 255-78.
**Joseph Schumpeter, 1951. "Ten Great Economists": 222-38.
**Thaler, Richard, 1999, " [http://gsbwww.uchicago.edu/fac/richard.thaler/research/Irving%20Fisher.pdf Irving Fisher: Behavioral Economist,] " "American Economic Review".
**James Tobin, 1987, "Fisher, Irving" in "The ", Vol. 2: 369-76.

External links

*Writings by Fisher made available by the [http://www.econlib.org/index.html Library of Economics and Liberty] :
**" [http://www.econlib.org/library/YPDBooks/Fisher/fshPPM.html The Purchasing Power of Money] ";
**" [http://www.econlib.org/library/YPDBooks/Fisher/fshToI.html The Theory of Interest] ";
**" [http://www.econlib.org/library/Essays/fshEnc1.html Dollar Stabilization.] " From the 1921 Encyclopedia Britannica.

* [http://socserv2.socsci.mcmaster.ca/~econ/ugcm/3ll3/index.html Archive for the History of Economic Thought] at McMaster University:
**Fisher, Irving, " [http://socserv2.socsci.mcmaster.ca/~econ/ugcm/3ll3/fisher/capital4 Precedents for Defining Capital,] " "Quarterly Journal of Economics 18": 386-408.
**------, 1918, " [http://socserv2.socsci.mcmaster.ca/~econ/ugcm/3ll3/fisher/utility.htm Is 'Utility' the Most Suitable Term for the Concept It is Used to Denote?] " "American Economic Review 8": 335-37.

*New School for Social Research website:
** [http://cepa.newschool.edu/het/profiles/fisher.htm Irving Fisher, 1867-1947.] Includes a photograph of the young Fisher. For a photograph of the older man, see [http://www.york.ac.uk/depts/maths/histstat/people/fisher_i.gifIrving Fisher] on the [http://www.york.ac.uk/depts/maths/histstat/people/welcome.htm Portraits of Statisticians] page.
** [http://cepa.newschool.edu/het/essays/capital/fisherinvest.htm Irving Fisher's Theory of Investment.]

* [http://www.library.yale.edu/un/papers/fisher.htm Yale Manuscripts and Archives -- Collections -- Irving Fisher]
* [http://userpage.fu-berlin.de/~roehrigw/fisher/ "Stamp Scrip" (1933), full text]


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