First Quote Added
April 10, 2026
Latest Quote Added
"The total number of multiplications involved in the practical solution of our problem exceeds 450,000. This task alone would mean a two-year job, at 120 multiplications per hour. Fortunately, the recent invention of the Simultaneous Calculator by Professor Wilbur of the Massachusetts Institute of Technology has made it possible to perform all the necessary computations in a small fraction of the time they otherwise would have required. This apparatus solves nearly automatically a system of nine simultaneous linear equations."
"Computers and robots replace humans in the exercise of mental functions in the same way as mechanical power replaced them in the performance of physical tasks. As time goes on, more and more complex mental functions will be performed by machines. Any worker who now performs his task by following specific instructions can, in principle, be replaced by a machine. This means that the role of humans as the most important factor of production is bound to diminish—in the same way that the role of horses in agricultural production was first diminished and then eliminated by the introduction of tractors."
"Sir John Hicks (1904–89) was a leading economic theorist of the twentieth century, and along with Kenneth Arrow was awarded the Nobel Prize in 1972. His work addressed central topics in economic theory, such as value, money, capital, and growth. An important unifying theme was the attention to economic rationality ‘in time’ and his acknowledgment that apparent rigidities and frictions might exert a positive role as a buffer against excessive fluctuations in output, prices, and employment. This emphasis on the virtue of imperfection significantly distances Hicksian economics from both the Keynesian and monetarist approaches."
"The objective of an educational campaign is to minimize prejudice—or, at least, to bring the conflict between prejudice and ideals out into the open and to force the white citizen to take his choice"
"Ecological rationality uses reason – rational reconstruction – to examine the behavior of individuals based on their experience and folk knowledge, who are ‘naïve’ in their ability to apply constructivist tools to the decisions they make; to understand the emergent order in human cultures; to discover the possible intelligence embodied in the rules, norms and institutions of our cultural and biological heritage that are created from human interactions but not by deliberate human design. People follow rules without being able to articulate them, but they can be discovered."
"The statistical study presented in the following pages may be best defined as an attempt to construct, on the basis of available statistical materials, a of the United States for 1919 and 1929. One hundred and fifty years ago, when Quesnay first published his famous scheme, his contemporaries and disciples acclaimed it as the greatest discovery since Newton’s laws. The idea of general interdepence among the various part of the economic system has become by now the very foundation of economic analysis. Yet, when it comes to the practical application of this theoretical tool, modern economists must rely exactly as Quesnay did upon fictitious numerical examples."
"Rules emerge as a spontaneous order–they are found–not deliberately designed by one calculating mind. Initially constructivist institutions undergo evolutionary change adapting beyond the circumstances that gave them birth. What emerges is a form of “social mind” that solves complex organization problems without conscious cognition."
"During the ’thirties the danger of being a marginal worker became increased by social legislation intended to improve conditions on the labor market. The dilemma, as viewed from the Negro angle is this: on the one hand, Negroes constitute a disproportionately large number of the workers in the nation who work under imperfect safety rules, in unclean and unhealthy shops, for long hours, and for sweatshop wages; on the other hand, it has largely been the availability of such jobs which has given Negroes any employment at all. As exploitative working conditions are gradually being abolished, this, of course, must benefit Negro workers most, as they have been exploited most—but only if they are allowed to keep their employment. But it has mainly been their willingness to accept low labor standards which has been their protection. When government steps in to regulate labor conditions and to enforce minimum standards, it takes away nearly all that is left of the old labor monopoly in the “Negro jobs.” As low wages and sub-standard labor conditions are most prevalent in the South, this danger is mainly restricted to Negro labor in that region. When the jobs are made better, the employer becomes less eager to hire Negroes, and white workers become more eager to take the jobs from the Negroes."
"The further away a scholarly opinion is from direct observation and the more abstract and ‘theoretical’ it is, the more defenseless it becomes against insidious opportunist errors of judgment. In economics, model thinking in particular creates scope for systematic biases... But of course all social studies must nevertheless aim at generalization. It is thus important to be able to think concretely at the same time, as I learnt from Gustav Cassel."
"Theory should be ever more demanding of our empirical resources. Simultaneously, data should be ever more demanding of the empirical relevance of theory and of the theorist's expertise in working imaginatively on problems of the world, rather than on stylized problems of the imagination."
"Income No. 3 must be defined as the maximum amount of money which the individual can spend this week, and still be able to spend the same amount in real terms in each ensuing week."
"So long as we confine our attention to income from property, and leave out of account any increment or decrement in the value of prospects due to changes in people's own earning power (accumulation or decumulation of “Human Capital”), Income No. 1 ex post is not a subjective affair, like other kinds of income; it is almost completely objective."
"There is much of economic theory which is pursued for no better reason than its intellectual attraction; it is a good game. We have no reason to be ashamed of that, since the same would hold for many branches of pure mathematics."
"It is not possible to design a laboratory resource allocation experiment without designing an institution in all its detail."
"The best of all monopoly profits is a quiet life."
"I can date my own personal 'revolution' rather exactly to May or June 1933. It was like this. It began... with Hayek. His "Prices and Production" is one of the influences that can be detected in The Theory of Wages; it could not have been otherwise, for 1931 was a Prices and Production year at the London School of Economics... I did not in fact find it all easy to fit in with my own ideas. What started me off in 1933 was an earlier work of Hayek's, his paper on 'Intertemporal Equilibrium', an idea which I found easier to reduce to my preferred (Paretian or Wicksellian) pattern."
"There were four years, 1931-1935, when I was myself a member of Hayek's seminar in London; it has left a deep mark on my thinking... At the end of the discussions in that seminar … we were, I believe, on the point of taking what now seems to me to be a decisive step. I was, at least, on the point of taking it myself. There is evidence for that in my "Value and Capital", much of the groundwork for which was done before I left London."
"The purpose of income calculations in practical affairs is to give people an indication of the amount which they can consume without impoverishing themselves. Following out this idea, it would seem that we ought to define a man's income as the maximum value which he can consume during a week, and still expect to be as well off at the end of the week as he was at the beginning."
"Parallelism: Propositions about the behavior of individuals and the performance of institutions that have been tested in laboratory microeconomies apply also to nonlaboratory environments where similar ceteris paribus conditions prevail."
"While economic theory in general may be defined as the theory of how an economic condition or an economic development is determined within an institutional framework, the deals with how to judge whether one condition can be said to be better in some way than another and whether it is possible, by altering the institutional framework, to achieve a better condition than the present one."
"In defining a microeconomic system two distinct component elements will be identified: an environment and an institution. The environment consists of a list of N economic agents {l,...,N}, a list of K + 1 commodities (including resources) {O,l,...,K}, and certain characteristics of each agent … Hence, a microeconomic environment is defined by the collection of characteristics e = (e',...,e”)."
"[The principal characteristic of this economic epoch is] a sustained increase in per capita or per worker product, most often accompanied by an increase in population and usually sweeping structural changes."
"The inescapable conclusion is that the direct contribution of man-hours and capital accumulation would hardly account for more than a tenth of the rate of growth in per capita product — and probably less. The large remainder must be assigned to an increase in efficiency in the productive resources, or the effects of changing arrangements, or to the impact of technological change, or to all three"
"Among the many factors that have promoted economic change, I believe that technology or, rather, change in technology is the most prominent. I realize that it is dangerous to look for 'ultimate causes' in a world where everything seems to depend on everything else. But I believe that for the most part the economy, and ultimately the society, must adapt to the conditions that technology creates. If it cannot adjust to the challenges of changing technology, it fails."
"[An] epochal innovation [consisting of the] spreading application of science to processes of production and social organization."
"The British economist John Hicks is known for four contributions. The first is his introduction of the idea of the elasticity of substitution... His second major contribution is his invention of what is called the , a graphical depiction of the argument John Maynard Keynes gave in his ' (1936) about how an economy could be in equilibrium with less than full employment... Hicks’s third major contribution is his 1939 book ', in which he showed that most of what economists then understood and believed about value theory (the theory about why goods have value) can be derived without having to assume that utility is measurable... Hicks’s fourth contribution is the idea of the compensation test."
"The paper is perhaps 5 per cent empirical information and 95 per cent speculation, some of it possibly tainted by wishful thinking. The excuse for building an elaborate structure on such a shaky foundation is a deep interest in the subject and a wish to share it with members of the Association. The formal and no less genuine excuse is that the subject is central to much of economic analysis and thinking; that our knowledge of it is inadequate; that a more cogent view of the whole field may help channel our interests and work in intellectually profitable directions; that speculation is an effective way of presenting a broad view of the field; and that so long as it is recognized as a collection of hunches calling for further investigation rather than a set of fully tested conclusions, little harm and much good may result"
"Hayek was making us think of the productive process as a process in time, inputs coming before outputs."
"If the history of economics in the twentieth century were properly written, the two great figures associated with what has come to be called the Keynesian revolution would be John Maynard Keynes and Simon Kuznets. And this is a judgment in which Keynes would concur. Keynes showed in analytical terms the possibility of a shortage in aggregate demand and argued the means for its correction. But it remained for Simon Kuznets and his talented associates to put this in the quantitative terms that made it persuasive, indeed irresistible. The Keynesian argument could be resisted; the Kuznets figures could not."
"The general, and at the same time dynamic, type of analysis still remains an unwritten chapter of economic theory, the claims of innumerable “model-builders” notwithstanding... The … theoretical approach, based on the combination of the complexities of a general interdependent system with the simplifying assumptions of static analysis, constitutes the background of this investigation."
"The rural and urban populations does not necessarily drift downward in the process of economic growth: indeed, there is some evidence to suggest that it is stable at best, and tends to widen because per capita productivity in urban pursuits increases more rapidly than in agriculture."
"Economics as currently learned and taught in graduate school and practiced afterward is more theory-intensive and less observation-intensive than perhaps any other science. I think the statement that "no mere fact ever was a match in economics for a consistent theory" accurately describes the prevailing attitude in the profession (Milgrom and Roberts, 1987, p. 185)."
"The standard stream corresponding to Income No. 3 is constant in real terms... We ask... how much he would be receiving if he were getting a standard stream of the same present value as his actual expected receipts. This amount is his income."
"Economics today rides the crest of intellectual respectability and popular acclaim. The serious attention with which our pronouncements are received by the general public, hard-bitten politicians, and even skeptical businessmen is second only to that which was given to physicists and space experts a few years ago when the round trip to the moon seemed to be our only truly national goal."
"The very fact that after a while, an increasing proportion of the urban population was "native," i.e., born in cities rather than in the rural areas, and hence more able to take advantage of the possibilities of city life in preparation for the economic struggle, meant a better chance for organization and adaptation, a better basis for securing greater income shares than was possible for the newly "immigrant" population coming from the countryside or from abroad"
"Complexity. In general individual decision makers must be assumed to have multidimensional values which attach nonmonetary subjective cost or value to (1) the process of making and executing individual or group decisions, (2) the end result of such decisions, and (3) the rewards (and perhaps behavior) of other individuals involved in the decision process."
"The welfare of a nation can scarcely be inferred from a measurement of national income."
"Distinctions must be kept in mind between quantity and quality of growth, between its costs and return, and between the short and the long term. Goals for more growth should specify more growth of what and for what."
"we need far more empirical study than we have had so far of the universe of inventors; any finding concerning inventors... would be of great value... for public policy in regard to inventive activity."
"Koopmans was also like Kantorovich in generalizing his approach from one sector of the economy to the economy as a whole. Koopmans showed the conditions required for economy-wide efficiency in allocating resources. He also, again like Kantorovich, used his activity analysis techniques to derive efficient criteria for allocating between the present and the future."
"Microeconomics, including the study of individual choice and of group choice in market and nonmarket processes, has generally been considered a field science as distinct from an experimental science. Hence microeconomics has sometimes been classified as "non-experimental" and closer methodologically to meteorology and astronomy than to physics and experimental psychology (Marschak, 1950, p. 3; Samuelson, 1973, p. 7). But the question of using experimental or nonexperimental techniques is largely a matter of cost, and generally the cost of conducting the most ambitious and informative experiments in astronomy, meteorology, and economics varies from prohibitive down to considerable. The cost of experimenting with different solar system planetary arrangements, different atmospheric conditions, and different national unemployment rates, each under suitable controls, must be regarded as prohibitive."
"An important distinction exists between prospective and retrospective methods of calculating economic quantities such as incomes, savings, and investments; and... a corresponding distinction of great theoretical importance must be drawn between two alternative methods of defining these quantities. Quantities defined in terms of measurements made at the end of the period in question are referred to as ex post; quantities defined in terms of action planned at the beginning of the period in question are referred to as ."
"The principal customers aimed for are other economists or members of other professions, who are somewhat closer to the making of policy recommendations... The question of the clientèle is even more baffling when the problem concerns growth paths for time spans covering several generations. What can at best be recommended in that case is the signal the present generation gives, the tradition it seeks to strengthen or establish, for succeeding generations to take off from."
"Linear programming was developed as a discipline in the 1940's, motivated initially by the need to solve complex planning problems in wartime operations. Its development accelerated rapidly in the postwar period as many industries found valuable uses for linear programming. The founders of the subject are generally regarded as George B. Dantzig, who devised the simplex method in 1947, and John von Neumann, who established the theory of duality that same year. The Nobel prize in econonmics was awarded in 1975 to the mathematician Leonid Kantorovich (USSR) and the economist Tjalling Koopmans (USA) for their contributions to the theory of optimal allocation of resources, in which linear programming played a key role. Many industries use linear programming as a standard tool, e.g. to allocate a finite set of resources in an optimal way."
"The central theme of this paper is the character and causes of long-term changes in the personal distribution of income. Does inequality in the distribution of income increase or decrease in the course of a country's economic growth? What factors determine the secular level and trends of income inequalities?"
"For these anticipations determine the behaviour of the economic subjects and consequently those changes in the whole price system which during a period actually occur as a result of the actions of individuals."
"It is important to remove artificial barriers–stumbling stones, often local in origin and coming from incumbent opposition to entry–and to not burden businesses with taxes that reduce their internally generated funds for reinvestment, growth and striving to overcome market challenges."
"Koopmans complained that macroeconomic models weren't satisfactory because they didn't handle randomness. He talked about building models in continuous time, which is something we're trying to do now."
"Three precepts are offered to constitute a foundation for the use of laboratory experimental methods in testing hypotheses about the behavior of allocation mechanisms."
"Decisions and plans made by others... [can be judged to be] quantitatively at least as important as the primary uncertainty arising from random acts of nature and unpredictable changes in consumers' preferences."