1,549 works, 150 years of economic thought. Each one summarized and searchable, with cited passages inside.

Definitions of a science are usually dismissed as verbal preliminaries; here they become the record of a discipline learning to see its own object. Tracing the long argument over what makes analysis specifically "economic," Kirzner follows the movement from the classical science of wealth, through material welfare and the figure of homo oeconomicus, to Robbins's austere formulation of economics as the relation between ends and scarce means. Each definition, he shows, both advances and constrains: wealth fixes attention on things rather than valuation, while money mistakes one powerful manifestation for the ground. The Methodenstreit hovers over the whole inquiry. Kirzner's destination is praxeological—the economic point of view as a branch of Mises's science of human action, in which means become means only within purposeful conduct, not through mechanical allocation.
“Economics,” wrote Professor Robbins, “is the science which studies human behavior as a relationship between ends and scarce means which have alternative uses.”

All economics unfolds from a single axiom: that human action is purposeful behavior. Building deductively from that Misesian starting point, the first volume of Rothbard's treatise—here in the German translation of the 1962 English original—derives the whole architecture of the market: marginal utility and the ordinal value scale, the emergence of money from barter through Mises's regression theorem, time preference and the pure rate of interest, and the evenly rotating economy as a mental tool for isolating market tendencies. Rothbard insists throughout that costs of production are at the mercy of the final price, not the reverse, and that capital goods are intermediate stations reducible to land, labor, and time rather than an independent source of value. Praxeology, not psychology or mathematics, supplies the method.
Jede Handlung ist ein Versuch, einen weniger befriedigenden Zustand gegen einen befriedigenderen zu tauschen.
English translation: “Every action is an attempt to exchange a less satisfactory state for a more satisfactory one.”

Orthodox price theory, Kirzner charges, describes the properties of a final equilibrium while falling silent on the forces that would ever bring one about. His reconstruction redefines competition not as a market structure—a given number of firms facing flat demand curves—but as a process of entrepreneurial discovery. The entrepreneur here is neither capitalist nor innovator but the agent of alertness: the one who notices a price discrepancy, an unmet demand, or a cheaper method others have missed, and profits by closing the gap. From this vantage, monopoly becomes exclusive control of a resource rather than mere solitary selling, advertising becomes communication rather than waste, and profit becomes the sign that some prior ignorance has been overcome. Markets earn their defense as procedures that coordinate dispersed, fragmentary knowledge.
In equilibrium there is no room for the entrepreneur.

Monetary disorder, Hayek contends, is not an inherent flaw of capitalism but the predictable product of a state monopoly over money. Beginning with a modest proposal for Europe, free trade in currencies, the abolition of exchange controls, freedom to contract in any unit, he escalates into a general assault on sovereign coinage. Legal tender, he argues, is mere coercion; Gresham's law bites only where law fixes exchange rates; gold's discipline was institutional, never mystical. His constructive model is the privately issued ducat, held stable against a publicly announced commodity basket and policed not by convertibility but by competitive reputation and the customer's power to exit. Competition, rather than any monetarist quantity rule, becomes the procedure by which good money is discovered at all.
No authority can beforehand ascertain, and only the market can discover, the ‘optimal quantity of money’.

No account of law, rights, or the state can pretend to be value-neutral: to speak of what people may do to one another is already to take an ethical stand. From that opening Rothbard builds the moral foundation his earlier economics deliberately withheld — a natural-law theory holding that liberty is not merely efficient but required by human nature. Rights reduce to self-ownership and to homesteading, the mixing of labor with unowned resources; a contract binds only where it transfers title to alienable property; and taxation is recast as institutionalized aggression against rightful owners. Reviving natural law as a radical standard rather than a conservative inheritance, he indicts the minimal state as fiercely as the total one, and answers Nozick, Hayek, Berlin, and Mises in turn. The result is a complete anarcho-capitalist ethics of person and property.
Taxation is theft, purely and simply, even though it is theft on a grand and colossal scale which no acknowledged criminals could hope to match.

Late in his life, Hayek returned to the question that had shadowed his career, whether socialism was, at bottom, a factual mistake rather than a moral one. His answer turns on knowledge: a central mind cannot command the dispersed information that only competitive prices, in the 'extended order' of human cooperation, can coordinate. Ranging across morality, property, trade, money, language, population, and religion, he argues that our rules of conduct sit between instinct and reason, neither designed nor innate, but evolved and selected because the groups that kept them flourished. He credits the marginal-utility revolution of Menger, Jevons, and Walras with explaining value as subjective and relational, dismantles the 'weasel word' social and the fraud of 'social justice', and holds that capitalism gave life to the proletariat rather than immiserating it. To imagine we designed civilization is the fatal conceit itself.
Not only is the idea of evolution older in the humanities and social sciences than in the natural sciences, I would even be prepared to argue that Darwin got the basic ideas of evolution from economics.
Emil Sax treats the slum dwelling not as a mere symptom of poverty but as the mechanism by which poverty, disease, and moral ruin reproduce one another, which makes housing reform, in this 1869 Vienna treatise, the precondition of every other social reform. He begins with sanitation, linking damp, dark, overcrowded rooms to cholera, typhus, and child mortality, then argues that the good dwelling is a civilizing force restoring thrift, sobriety, and family order. Ownership he prefers to rent, the single-family cottage to the barracks, and planned worker colonies, Godin's Familistère at Guise foremost, to the mere patching of urban misery. Surveying employers, private capital, self-help building societies, and the state as agents of reform, he reads England's freer building trades and public sanitary legislation as jointly responsible for its sounder housing.
Die Gesetzgebung Englands bekennt sich zu dem Principe: schlechte Wohnungen werden von Staatswegen nicht geduldet.
English translation: “The legislation of England subscribes to the principle: bad dwellings are not tolerated by the state.”
Can scientific inquiry fix the natural height of prices? Working through the whole nineteenth-century apparatus—Hume, Smith, Ricardo, and Mill on labor; Hermann, Rau, and Roscher on the boundaries set by use value; and the reigning cost-of-production school—Komorzynski answers no. Labor theories confuse value-creating purposive activity with mere physical day-labor; boundary theories only enclose price between an upper and lower limit; and cost-of-production formulas are circular, because costs are themselves prices, and capital profit and rent cannot be determined without already knowing the whole price system. Joint production and common inputs, like gas and coke or wool and mutton, seal the case: since a good's contribution to human welfare cannot be measured from its physical properties, the title's question must be answered in the negative.
Wir werden demnach zu dem Ergebnisse gelangen, dass auf Grundlage der heutigen Forschung die wissenschaftliche Begründung der natürlichen Preisverhältnisse der Güter eine Unmöglichkeit ist.
English translation: “We shall accordingly reach the conclusion that, on the basis of present-day research, the scientific grounding of the natural price relations of goods is an impossibility.”
Traditional police science no longer matched its object: the modern Rechtsstaat had narrowed the police to tighter limits even as administration expanded into every corner of public life. Inama-Sternegg answers by carving out Verwaltungslehre as a discipline in its own right, bounded against justice, finance, and politics, and governed by three principles — law, morality, and purpose. Refusing both bureaucratic tutelage and abstract laissez-faire, he holds that the measure of direct state activity cannot be fixed by doctrine but must be found case by case from a people's economic development. His sprawling survey — population, health, poor relief, education, property, credit, transport, church, and municipality — treats administration as the art of assigning each public task to its proper organ, with the self-governing Gemeinde as the model of public power that is not centralist.
Das Prinzip der wirthschaftlichen Freiheit verträgt sich nicht mit Massregeln, welche den Einzelnen zu einer nach den Ansichten der Staatsverwaltung ökonomisch besten Güterverwendung zwingen sollen.
English translation: “The principle of economic freedom is incompatible with measures intended to compel the individual to an economically best use of goods according to the views of the state administration.”
Heavy fixed capital, permanent staff, stations, and rolling stock make a railway's costs depend overwhelmingly on the volume of traffic it carries, a fact from which Sax builds, in these 1871 Vienna lectures, an entire economic science of the railway rather than the scattered policy remarks he found in the textbooks. Economically, he argues, a railway is the mechanization of land transport, governed by the principle of Wirtschaftlichkeit; the same works may be economical on a dense trunk line and wasteful on a thinly settled one, so construction must distinguish main, extensive, and local railways down to the gauge. Tariffs are prices set under monopoly and public dependence. And because their scale and effects touch the whole economy, railways belong to Gemeinwirthschaft, though which organ should build and run them remains, for Sax, a historical question.
Die vollendetste Technik kann unökonomisch sein.
English translation: “The most perfect technology can be uneconomic.”
In the high valleys of Tyrol, Salzburg, and South Bavaria, medieval peasants often lived not in villages but on isolated farmsteads ringed by their own consolidated fields. Inama-Sternegg argues that this Einzelhof was no anomaly but an economically rational answer to broken terrain, pasture, and woodland — a form in which field community, intermixed strips, and Flurzwang simply lose their object. Reading the Weisthümer, Dorfrechte, and Öffnungen as records of actual rural practice, and pressing back through the Volksrechte to Tacitus's Germania, he makes arrondierung — compact holding — the analytic hinge that separates the Hofsystem from the village. His deeper claim is that communal belonging and field intermixture are distinct: a farm could stand outside the Feldgemeinschaft while remaining a member of the Markgenossenschaft.
Dagegen sind Anordnungen über die Fruchtfolge, über die Brachäcker etc., kurz alles, was der Flurzwang der im Gemenge liegenden Felder betrifft, hier entweder nicht möglich oder nicht nothwendig und daher gänzlich gegenstandslos.
English translation: “By contrast, arrangements concerning crop rotation, fallow fields, and so on—in short, everything that pertains to the compulsory tillage regime of intermixed fields—are here either not possible or not necessary, and therefore altogether without object.”
Few inventions reshaped the nineteenth-century state as thoroughly as the railway, and in this Vienna study of 1882 Gustav Adolf Groß treats the line of track as a social power the state cannot leave to private hands. Ranging across Austria, Hungary, Prussia, France, and the American land-grant Pacific roads, he asks when and how a government should subsidise private railways whose public value—strategic mobility, market integration, administrative reach—exceeds their direct profitability. He distinguishes direct from indirect profitability, dissects land grants, fixed cash subsidies, repayable loans, revenue guarantees, and tax exemptions as so many methods, and repeatedly faults Austria's planless, escalating lump-sum guarantees against the more disciplined French and Prussian practice of guaranteeing only proven, actually invested capital. Beneath the fiscal detail runs a consistent preference for the state railway.
Im Principe wird man sich daher unbedingt und rückhaltslos für das Staatsbahnsystem, vielleicht vervollständigt durch Provinzial-, Kreis-, ja sogar Communalbahnen, kurz für ein ausschliesslich gemeinwirtschaftliches Bahnsystem aussprechen müssen.
English translation: “In principle, therefore, one must unconditionally and unreservedly declare oneself in favor of the state railway system, perhaps supplemented by provincial, district, and even communal railways—in short, in favor of an exclusively public-economic railway system.”