The Misesian

Murray N. Rothbard: Toward a “Science of Liberty”

murray_rothbard_1.jpg
Downloads

Murray N. Rothbard was a system builder in the mode of Ludwig von Mises, Frank H. Knight, and Friedrich A. Hayek. Like these eminent economists, Rothbard concluded that mastery of pure economic theory alone does not get one very far. Social, economic, and political problems are intertwined and complex and require a grand theory to address them. The social theorist must be familiar with such diverse disciplines as epistemology, political philosophy, politics, history, and economics. For Rothbard, the unifying theme of social theory was liberty. He recognized early on the causal role of liberty in the flourishing of human society and the deleterious social effects of the state’s infringements on liberty. Thus, throughout his career, Rothbard strove to develop an overarching “science of liberty,” writing several major works and numerous articles on economic theory, economic history, political philosophy, political history, the methodology of the social sciences, and intellectual history.

Rothbard was born in Bronx, New York, in 1926 to Raya (née Babushkin) and David Rothbard. Murray was influenced at a young age by the individualist-conservative views of his father, a petroleum engineer. Skipping several grades in school, Murray enrolled at Columbia University in 1942 at the age of sixteen. At age nineteen he received his AB degree with honors in economics and mathematics, and soon after, he enrolled in Columbia’s PhD program in economics. Columbia was one of the two institutions that had a formative influence on Rothbard’s intellectual development.

In the 1940s, Columbia University was a leading academic institution in the United States and housed one of the top three economics departments in the nation. Notable faculty included Arthur F. Burns, John Maurice Clark, Joseph Dorfman, Harold Hotelling, and George Stigler. Rothbard took courses with all these eminent economists. He was especially influenced by the institutionalists Burns and Dorfman and impressed both professors. Burns expected Rothbard to make “a prominent place for himself” in the world. Rothbard respected Burns, recalling that in his lectures Burns was “a brilliant theorist” and that his “critique of orthodox theory . . . was excellent.” Rothbard held Dorfman in high esteem as a historian of economic thought and in the dedication to An Austrian Perspective on Economic Thought named him as one of his mentors along with Ludwig von Mises. Dorfman appreciated Rothbard’s abilities and agreed to chair his dissertation committee.

Rothbard took a graduate course in price theory from George Stigler, the creator of modern Chicago price theory. As a self-proclaimed “anti- New Deal, extreme right-wing Republican,” Rothbard appreciated the free-market views that Stigler openly expressed in class to the bewilderment of his left-liberal students. Stigler referred the class to a pamphlet criticizing rent controls that he had coauthored with Milton Friedman, published by a then-obscure organization, the Foundation for Economic Education (FEE). Founded in 1946 by Leonard Read, FEE was the second institution that shaped Rothbard’s intellectual outlook. Shortly after Rothbard wrote to FEE for the pamphlet, he was introduced to the world of the libertarian Old Right through the writings of Albert Jay Nock, Isabel Paterson, Rose Lane Wilder, Garet Garrett, and especially Frank Chodorov, who was to become his mentor in political and social theory.

Not only did Rothbard study the institutionalist approach under its contemporary leaders and learn the Chicago variant of neoclassical price theory from its founder, but he also spent an entire year in an honors seminar going chapter by chapter through Marshall’s Principles of Economics, then the bible of neoclassical economics. With logical positivism sweeping the economics profession during the 1940s and shunting aside both institutionalism and the deductive method, Rothbard took a course on the philosophy of economics with Ernest Nagel, one of the leading exponents of logical positivism, who impressed him with his criticisms of institutionalism. Rothbard also enrolled in a graduate mathematical statistics course offered by the eminent statistician Harold Hotelling but became disillusioned when he realized after a few lectures that statistical inference was based on the “groundless assumption” of a normal distribution. Thus, his Columbia education left Rothbard with an inchoate feeling that something was wrong with both the positivist and institutionalist approaches to economics, later reflecting that he “tended to agree with institutionalist critiques of Keynesians and mathematicians, but also with the latter’s critiques of the institutionalists.”

By the time he completed his coursework at Columbia, Rothbard was a well-trained, if somewhat uncomfortable, neoclassical economist well versed in contemporary economic theory and method. After passing his orals in 1948, Rothbard embarked on his doctoral dissertation. Completed by 1951 and entitled “The Panic of 1819: Reactions and Policies,” it was a thorough examination of contemporary opinion on the causes of and remedies for the panic. Although Rothbard amassed a plethora of facts for his dissertation, he eschewed any theoretical investigation, neither trying to empirically test a theory along positivist lines nor to derive a theory from the agglomeration of facts à la institutionalism. Burns, a member of Rothbard’s committee, was dissatisfied with the dissertation, and Dorfman deferred to his more formidable colleague. Rothbard’s PhD degree was finally awarded in 1956, after Burns departed Columbia for a post in the Eisenhower administration.

In the meantime, Rothbard’s personal association with FEE’s staff and associates, particularly Frank “Baldy” Harper and Frank Chodorov, led him to quickly convert from the free-market conservatism of his youth to a pure libertarian position. The winter of 1949–50 was the watershed moment in Rothbard’s intellectual development as an economist and as a libertarian.

Despite learning from distinguished economists at Columbia, Rothbard by his own admission had “never been able to find a comfortable home in economic theory.” But Rothbard took a huge intellectual leap forward when he discovered through FEE the thought of Ludwig von Mises and read his recently published magnum opus, Human Action. Rothbard began regularly attending Mises’s weekly seminar at New York University. Before even finishing Mises’s treatise, Rothbard converted to Austrian economics and adopted Mises’s praxeological approach to economics theory, which revitalized the deductive method by grounding it in the fundamental fact of human action. At about the same time, Rothbard realized that the limited-government laissez-faire position was “logically untenable” when he was unable to answer the objection raised by left-liberal friends: If people could collectively decide that government should provide police, courts, and military defense, then why couldn’t they decide that government should also operate steel mills or dams? Rothbard’s epiphany led him to adopt a pure anarcho-capitalist position.

Rothbard’s career moved swiftly after his dual conversion. With the financial support of the Volker Fund, Rothbard accepted Mises’s offer to write a textbook based on Human Action. By 1951 he was hard at work on the project that would culminate in his pathbreaking, two-volume treatise Man, Economy, and State (MES), in which he deduced the entire corpus of economic principles using Mises’s step-by-step praxeological method. This was a feat which even Mises himself had not accomplished. Rothbard finished writing his tome by early 1956, before he was awarded his PhD, and the book was published in 1962. The completed manuscript initially included seven chapters on interventionism which, mainly to control the book’s length, were reduced to a single chapter. Rothbard’s full treatment of interventionism was published in 1970 as Power and Market: Government and the Economy. With a grant from the Earhart Foundation, he then immediately began to write America’s Great Depression (AGD). Completed in 1957 and published in 1963, AGD elaborated and refined Austrian business cycle theory and used it to explain the Great Depression. It still stands as the exemplar of applied economics in the modern Austrian tradition.

When Rothbard began to write MES, his use of the praxeological method quickly led him to realize that Mises’s treatise had left large gaps, particularly in price theory and production theory, and that these areas required significant elaboration. Rothbard made the momentous decision to expand his project from a college-level textbook into a full-blown treatise. Beginning with the undeniable fact of human action—the purposeful use of means to achieve ends—and a handful of factual observations about reality, Rothbard used logic to deduce the entire edifice of economic theory.

Besides repairing the gaps in Misesian economics, Rothbard made numerous theoretical breakthroughs and discoveries of his own. These included using Mises’s ordinal utility theory and regression theorem to expand Eugen von Böhm-Bawerk’s famous analysis of price formation by the “marginal pairs” under barter into a complete explanation of money prices determined by supply and demand. Rothbard also dynamized price theory by demonstrating how expectations and speculative activities impact supply and demand schedules and expedite the market’s equilibration process.

In production theory, Rothbard recognized that Mises’s treatment was sparse and incomplete. After a false start trying to develop the theory by focusing on a single firm in isolation, along Marshallian partial-equilibrium lines, Rothbard turned to Eugen von Böhm-Bawerk’s economy-wide Austrian general-equilibrium analysis of the structure of production. Rothbard emphasized Böhm-Bawerk’s “capitalist-entrepreneurs,” who were continually ranging throughout the economy, seeking to allocate their capital to those lines and stages of production that promised the highest returns on investment, and incorporated Mises’s construct of the evenly rotating economy into Böhm-Bawerk’s analysis. The move from Marshallian partial-equilibrium to Böhm-Bawerkian general-equilibrium analysis enabled Rothbard to demonstrate that the complex capitalist economy operates as a unitary means-ends framework in which firms are tightly linked to one another through vertical and horizontal relations as suppliers and demanders of inputs and producers of complementary or substitute products.

Rothbard further advanced production theory by incorporating the scattered insights of various Austrian writers on the topics of subjective value, capital, interest, factor pricing, and entrepreneurship into a unified theoretical system. He integrated the Fetter-Mises pure time-preference theory of interest with the structure of production analysis pioneered by Böhm-Bawerk and further developed by Knut Wicksell and Hayek. He used ordinal-utility analysis of individual value scales to expound the concept of the time market, in which savings are supplied and demanded in the structure of production. Rothbard demonstrated that the natural interest rate on the time market was the uniform long-run rate of return on investment in production processes and that the interest rate on loans was merely a reflection of this natural rate. This insight enabled him to show that the prices of the factors of production are determined by the value of the additional good produced by the “marginal,” or last, unit of the factor hired, discounted by the interest rate. Rothbard’s production theory identified the primary function of the entrepreneur as calculating and effecting the most profitable allocation of savings and investment under uncertainty. To sum up, Rothbard gathered all the loose strands of thought among earlier Austrian writers and wove them into a systematic explanation of the dynamic production process.

Rothbard also made important breakthroughs in monopoly theory. He denied that a demand curve for a good determined on a purely free market would permit an entrepreneur to charge a monopoly price for the good. Earlier Austrian economists from Carl Menger to Mises had maintained that a particular configuration of the demand curve on the free market would allow a seller to restrict production or withhold stock to attain a monopoly price, defined as a price above the “competitive price.” This would impair social welfare, as scarce resources would be diverted to less valuable uses from the point of view of consumer preferences. Rothbard demonstrated that a monopoly price cannot emerge on a purely free market because the shape and position of all demand curves are governed solely by voluntary consumer preferences and, therefore, a competitive price cannot be distinguished from a monopoly price. In an uncertain world, entrepreneurs are continually striving to forecast future consumer demands in order to produce the quantity of the product that maximizes their profit. Those who overestimate the demand for a product, will restrict production and raise their price if they expect demand to remain constant. This is simply a natural market adjustment, and all entrepreneurs—from hot dog vendors to automakers—engage in it. There is no standard by which to distinguish which supply restrictions aim at attaining a monopoly price and which occur under the pressure of competition.

Furthermore, Rothbard showed, the theory of monopoly price is applicable to monopoly grants bestowed on privileged sellers from outside the market by governments. Legal restrictions imposed on sellers of the same or similar products forcibly narrow consumers’ choices and thereby cause a coercive reconfiguration of the market demand curve that may lead to a higher price that is not in accord with their voluntary preferences. Thus, Rothbard concluded, the only meaningful distinction is between the free-market price and a monopoly price.

Rothbard also made numerous improvements and innovations in the theory of interventionism, beginning with creating a comprehensive taxonomy that systematically classifies government interventions as autistic, binary, or triangular. Arguing that all services provided by government could be provided by the free market, Rothbard identified taxation and government expenditures as binary interventions into the free market; that is, coerced exchanges between the state and one of its subjects. He revolutionized the analysis of taxation by demonstrating that sales taxes and all other attempts to tax goods and services are never shifted “forward” onto consumers but always shifted backward and ultimately become income taxes borne by laborers and owners of land resources. Rothbard further elaborated monopoly theory by showing that many laws affecting labor and product markets, such as occupational licensure, antitrust laws, and quality and safety regulations, in effect operate as legal grants of monopoly to specific firms and groups of laborers. Rothbard thus classified monopoly as a triangular intervention in which the state legally bars, compels, or regulates the terms of exchange between a pair of its subjects.

In analyzing the long-run effects of interventionism, Rothbard took a cue from Mises and introduced the crucial concept of centers of calculational chaos. He pointed out that because it obtains its funds via coerced levies on its subjects, the government is unable to use the price system and economic calculation in producing goods and services. Without the ability to calculate profit and loss and obtain feedback on its errors, the government inevitably misallocates and wastes scarce resources. These islands of calculational chaos grow and multiply as government expands, and they propel the economy toward socialism.

Rothbard also classified inflation and credit expansion as a binary intervention. In expounding the Mises-Hayek business cycle theory, Rothbard made several improvements to it. He sharply distinguished between exogenous and endogenous business cycle theories. Most business cycle theories are endogenous, locating the causes of the cycles deep within the capitalist market economy (for example, attributing recession and unemployment to a collapse of investment spending, a downturn in consumption spending, or a slowdown in the velocity of money caused by businesses and households voluntarily trying to increase their cash holdings). The Austrian theory of the business cycle, according to Rothbard, locates the cause of boom-bust cycles outside the market economy, in credit expansion by fractional-reserve banks enabled and promoted by a central bank. Rothbard corrected his mentors in Austrian business cycle theory, Mises and Hayek, who had introduced elements of endogeneity into their expositions of the theory. Rothbard advanced beyond Mises and Hayek in his analysis of bank-credit deflation’s effect on the length and severity of a depression. Later in his career, Hayek maintained that such “secondary deflation” intensified the depression and favored an offsetting monetary expansion by the central bank, while Mises accepted this deflation as a necessary part of the depression-adjustment process. Rothbard, however, using the praxeological step-by-step method, deduced that secondary deflation mitigated the inflationary maladjustments and sped up the depression-adjustment process.

With the publication of Man, Economy, and State, Rothbard not only propelled himself into the front rank of economic theorists, but also established the praxeological tradition as a third alternative to the positivist Walras-Hicks- Samuelson and Marshall-Chicago traditions. Rothbard thus staked his claim to the status of Mises’s leading protégé. There is strong evidence that Mises himself viewed Rothbard as his heir. In his review of MES, Mises lauded Rothbard’s work as an “epochal contribution to the general science of human action” and went on to declare: “Henceforth, all essential studies in these branches of knowledge will have to take full account of the theories and criticisms expounded by Dr. Rothbard.” Mises, in a December 6, 1962, letter to French positivist Louis Rougier responding to the latter’s criticism of one of his books, wrote: “I can only refer to the systematic exposition of the whole doctrine of praxeology in my book Human Action and nowadays in the brilliant book of a younger man, Murray N. Rothbard, Man, Economy and State.” After recommending another one of his own works, Mises closed his letter with the entreaty: “But, please, first of all read the book of Rothbard.” Finally, there is Mises’s pithy inscription in Rothbard’s copy of the third edition of Human Action: “To Murray N. Rothbard, pioneer of praxeological analysis with all good wishes.” Pioneer of praxeological analysis! Given Mises’s well-known reticence in bestowing compliments fellow economists, this is high praise indeed. Mises’s public and private comments leave little doubt that he considered Rothbard’s treatise as building on his own system of economic theory.

Because the original MES manuscript was shortened, Rothbard’s most extensive discussion of business cycle theory appeared in America’s Great Depression. But the greater part of the book was devoted to applying the theory to the 1921–33 business cycle. Contrary to Milton Friedman and Anna Schwartz in A Monetary History of the United States, Rothbard argued that the 1920s were an inflationary decade despite the stability of wholesale prices, which would have naturally declined because of the enormous growth in capital accumulation and real output had the Fed not expanded the money supply by an average of 6% to 7% per annum. Nor was the Fed responsible for the large contraction of the money supply from 1930 to 1933, as Friedman and Schwartz claim. As Rothbard demonstrated, the Fed was frantically trying to pump up the money supply, but its efforts were continually thwarted by the public and the banks, which were withdrawing bank deposits and piling up excess reserves, respectively.

In addition to MES and AGD Rothbard published several shorter works in the early 1960s. These included The Panic of 1819: Reactions and Policies, based on his dissertation, and the book chapter “The Case for a 100 Percent Gold Dollar,” both published in 1962, as well as the 1963 booklet What Has Government Done to Our Money? Rothbard’s flurry of publications ignited a revival of interest in Austrian economics in the 1960s, especially among graduate students and young economics professors. But the burgeoning Austrian movement still lacked a text on political economy that addressed contemporary issues, comparable to Milton Friedman’s influential Capitalism and Freedom, which was based on Chicago school economics. This Rothbard supplied in 1973 with For a New Liberty. Friedman began his book with two chapters of positive analysis of the relation between economic and political freedom and the ideal role of government in a free society, respectively. In contrast, Rothbard began his book with an explicitly normative discussion of the ethics of property rights and exchange, and in the second chapter segued into a historical and sociological analysis of the real nature of the state as a criminal gang, the largest aggressor against property rights, and the greatest threat to social harmony and prosperity. Thus it was to those who attended the Austrian Economics Conference in South Royalton, Vermont, in 1974, which is generally identified as the precipitating event of the modern rebirth of the Austrian School, arrived mainly by way of Rothbard’s writings.

For a New Liberty was not only the politico-economic tract for the modern Austrian School, but also the founding document of modern radical libertarianism, or anarcho-capitalism, and the fulfillment of the vision of Rothbard’s Old Right mentors, Frank Chodorov and Baldy Harper. Rothbard’s integration of value-free economic theory with an objective ethics of property rights gave rise to two conclusions: First, the free market, based on private property and free exchange ensures, individual flourishing and social prosperity, and therefore is good for humankind. Second, any state intervention into the unhampered economy constrains individual choice and creates economic chaos and poverty by distorting prices and production, and therefore is bad for humanity. In 1982, Rothbard published The Ethics of Liberty, which systematically grounded his theory of property rights and his political economy in a natural law ethic.

In 1983, Rothbard published The Mystery of Banking. While setting out the theory of money and banking in plain and pellucid prose, it notably incorporated the modern explanation of the bank deposit expansion process with the sound money tradition, which stretches back to monetary debates in Great Britain and the US in the early nineteenth century. In its historical section, it asks and answers the forbidden question of cui bono—who benefits—from the creation of the Fed and the cartelization of the fractional-reserve banking system. From the 1980s until his passing in 1995, Rothbard busied himself with authoring a score of essential scholarly articles and booklets on economic theory, policy, and doctrine. Most of these were included along with many earlier articles in the posthumous two-volume collection, The Logic of Action, published in 1997 (and later reissued as a single volume under the title Economic Controversies).

Rothbard’s last major contribution to the science of liberty was An Austrian Perspective on the History of Economic Thought, a two-volume treatise published shortly after his death in 1995. The two volumes were entitled Economic Thought Before Adam Smith and Classical Economics. This treatise was perhaps Rothbard’s most radical break with mainstream economics, for in it Rothbard emphatically rejected the two mainstays of conventional textbooks on the history of economic thought going back to the 1930s. First, Rothbard jettisoned the “few great men approach” to the evolution of economic thought, which invariably began with Adam Smith as the founder and then chronicled the improvements on or deviations from his ideas made by the likes of David Ricardo, John Stuart Mill, Karl Marx, Thorstein Veblen and Alfred Marshall. Influenced by his dissertation mentor Joseph Dorfman, Rothbard did not start with the preconception that the economic ideas and theories of the anointed giants of the Smithian tradition were superior to the ideas of those who had been relegated to the roles of minor thinkers or heterodox gadflies. Furthermore, exposure to Dorfman’s institutionalist sensibilities stimulated Rothbard to consider the concrete historical context in which economic ideas had emerged; the political, social, and ethical ideas with which they were intertwined; and the mutual influences and conflicts between their creators.

The second great influence on Rothbard’s approach was the philosopher of science Thomas Kuhn. Kuhn’s work on the history and sociology of the physical sciences drove home for Rothbard the point that if the onward-and-upward, later-is-better approach to the history of scientific progress is deeply flawed for the hard sciences, then it is completely fallacious when applied to the softer social sciences such as economics. In utterly rejecting the conventional Whig view that a few great men invented and then progressively perfected economic science, with never a dead end or a step backward, Rothbard fundamentally transformed the historiography of economic thought. He revealed the period before Adam Smith to be a fertile area of research into economic ideas— worthy of a full volume of nearly 600 pages. He relocated the cradle of economic science from the eighteenth-century British Isles to sixteenth- and seventeenth-century Spain, giving the Scholastics of the school of Salamanca their due as the forerunners of modern economics. Richard Cantillon replaced Smith as the founder of modern economics, and Ricardo, Mill, and the British classical school were replaced by Anne Robert Jacques Turgot and other French and Italian utility theorists of the eighteenth century and by Jean-Baptiste Say, Frédéric Bastiat, and the French liberal school of the nineteenth century as major contributors to economic science.

Books and articles by Rothbard continued to pour forth posthumously, including three substantial revisionist works on US economic and political history: A History of Money and Banking in the United States: The Colonial Era to World War II and The Progressive Era were published in 2002 and 2017, respectively. The New Republic: 1784–1791, the fifth and final volume of Conceived in Liberty, a multivolume It is clear that Rothbard was engaged in a grand project to systematically investigate the nature and social implications of human liberty and its antithesis, political power, from every conceivable angle. work on the founding of the American Republic whose first four volumes appeared in the 1970s, was published in 2019.

In considering his body of work, it is clear that Rothbard was engaged in a grand project to systematically investigate the nature and social implications of human liberty and its antithesis, political power, from every conceivable angle. In this pursuit, Rothbard made major contributions to a broad range of disciplines, but especially economics, history, and philosophy. Rothbard’s contributions stand as a shining exemplar and a solid foundation for scholars interested in further developing what Rothbard dubbed the “science of liberty.”

CITE THIS ARTICLE

Salerno, Joseph T., “Murray N. Rothbard: Toward a ‘Science of Liberty,’” The Misesian (May/June 2026): 6–15.

image/svg+xml
Image Source: Mises Institute
Note: The views expressed on Mises.org are not necessarily those of the Mises Institute.
What is the Mises Institute?

The Mises Institute is a non-profit organization that exists to promote teaching and research in the Austrian School of economics, individual freedom, honest history, and international peace, in the tradition of Ludwig von Mises and Murray N. Rothbard. 

Non-political, non-partisan, and non-PC, we advocate a radical shift in the intellectual climate, away from statism and toward a private property order. We believe that our foundational ideas are of permanent value, and oppose all efforts at compromise, sellout, and amalgamation of these ideas with fashionable political, cultural, and social doctrines inimical to their spirit.

Become a Member
Mises Institute