2,793 works, 150 years of economic thought. Each one summarized and searchable, with cited passages inside.
Cultivation, not engineering: that metaphor governs this presidential address on 'Economic Budgeting,' the non-coercive sharing of forecasts and investment intentions among entrepreneurs. Lachmann keeps it strictly apart from Communist central direction and Nazi-style corporatism, presenting it instead as an attempt to make private plans mutually intelligible before resources are irreversibly committed. His conceptual pivot is the contrast between the neoclassical equilibrium of Walras, Pareto, and Cassel, where all plans are already consistent, and the open market economy, whose profits exist precisely because knowledge is dispersed and expectations conflict. Because capital goods are heterogeneous and complementary, isolated investment breeds excess capacity and stranded facilities; a scheme that diffuses entrepreneurial knowledge might reduce such malinvestment before it occurs. The verdict stays deliberately restrained—markets are vindicated as processes of learning, not as engines of equilibrium.
The market process tends to eliminate the results of malinvestment but cannot prevent its occurrence.
Against Schumpeter and Sombart, who dismissed Vienna as an incomplete anticipation of Walrasian equilibrium, this German essay locates the Austrian school's significance elsewhere: in its introduction of Verstehen, interpretive understanding, into theoretical social science. Lachmann sets three traditions against one another. Classical economics, following Ricardo, imitated natural science—laws of distribution among factor classes, value as a labor-measured substance, man as a homogeneous production factor. The Austrians put the acting individual at the center, turning marginal utility into a logic of choice and plans. And the Lausanne school, needing timeless statics in which every alternative is already given, stands opposite a theory that requires real time because mental acts unfold in time. The closing move extends this interpretive economics toward institutions—supra-individual schemes of thought at which individual plans orient themselves and are coordinated.
Die österreichische Theorie bedarf der Zeitdimension, da geistige Akte nur in der Zeit möglich sind.
English translation: “Austrian theory requires the dimension of time, since mental acts are possible only in time.”
The most elegant formal models exclude exactly what makes a market intelligible—plans, expectations, disappointment, and the revision that follows. That is Lachmann's charge against neoclassical formalism, which swaps causal explanation for closed systems of simultaneous equations and imagines the economy as a single optimizing subject gliding along a maximum growth path. He attacks aggregate production functions like the Cobb-Douglas for dissolving heterogeneous firms and capital goods, and dismisses dynamic equilibria as the preoccupations of economists indifferent to actual markets. In their place he sketches a genetic-causal, open-system theory built on the individual plan: capital as the vessel of entrepreneurial expectations, the stock exchange as a forward market in future yields, competition as a chain of innovation, imitation, and eroded advantage. The project he binds to Eucken, Mises, Hayek, and Röpke.
Dynamic equilibria, maximum growth paths, and similar concepts are notions of economists with little interest in what matters in the market economy.
What presents itself as a review of Hicks's Capital and Growth becomes a sustained challenge to equilibrium growth theory itself. Lachmann admires Hicks as a broker between the Marshallian, Paretian, Wicksellian, and Keynesian traditions, and welcomes his refusal of homogeneous capital, yet he presses one question the models cannot answer: can an economy actually traverse from one growth path to another? During any such transition the capital stock must be reshaped while relative prices, technology, expectations, and wealth distribution all shift, so the price system required for the new equilibrium can never be known in advance. Malinvestment, mentioned only once in Hicks's book, is for Lachmann a normal feature of a world where capital goods embody past plans and expectations diverge, revisable and causally powerful.
In this way he has become a prominent mediator between different strands of thought, a broker of ideas whose influence has been far greater than is often realised today.
Once general-equilibrium theory made real markets look deficient, measuring them against a fictitious world of perfect competition, simultaneous equations, and Pareto-optimality, the old alliance between economic theory and the market collapsed. Lachmann's reconstruction, written for a Hayek volume, defends capitalism not as a static allocation mechanism but as a process of plans, expectations, disappointments, and capital revaluations under uncertainty. Methodological individualism, he argues, is the demand that no explanation of social phenomena satisfy us until it leads back to a human plan; Hayek's compositive method works forward from plans to their compatibility, while Verstehen works backward. Indifference curves smuggle in given tastes and evade how plans are actually made and revised. The Stock Exchange, pricing divergent expectations over existing assets, becomes the institution in which this vision is most visible.
In fact it is hardly an exaggeration to say that without a Stock Exchange there can be no market economy.
Lachmann casts Mises as the economist who decisively rejected equilibrium as the master concept of economics and put the market process in its place. Contemporary neoclassical theory he indicts as 'late classical formalism,' mathematically elegant yet mute on real problems like permanent inflation, because it abstracts from choice, alternatives, and uncertainty. The newer models of steady growth—Cassel, Harrod, Domar, Solow—fare no better, since continuous coordination would demand perfect foresight and the instantaneous rearrangement of heterogeneous capital. Because knowledge is unevenly held and interpreted, expectations diverge and plans must fail. What survives is individual equilibrium, never the system-wide kind; the market is millions of people seeking their own equilibria within an order that never reaches a general one.
But in doing so they have taken the shadow of the formal apparatus for the substance of the real subject matter.
Cambridge neo-Ricardians and neo-classical formalists conducted a 'grand debate' over capital and growth while sharing, Lachmann charges, the same fatal habit: treating aggregates like income, output, and capital as autonomous magnitudes whose composition can be ignored. This Hobart Paper diagnoses that habit as macro-economic formalism and insists that what most needs explaining—heterogeneous capital, divergent expectations, failed plans, entrepreneurial revision—vanishes into the totals. Profit is his sharpest case: not a Ricardian uniform rate nor Solow's social rate of return, but a shifting spread of price-cost discrepancies that competition never levels. Steady-state growth is impossible because the capital stock never assumes its equilibrium composition, and technical change becomes progress only after markets test it through loss and abandonment. Incomes policy, growth targets, and indicative planning follow as misguided attempts to command what only discovery reveals.
An equilibrium rate of profit is thus a contradiction in terms.
With neoclassical economics on the defensive, Hicks's Capital and Time reached for the label 'neo-Austrian'—and Lachmann's review asks whether the borrowing is earned. Hicks restores the time dimension of production associated with Böhm-Bawerk and Hayek, replacing timeless comparative statics with a sequential analysis in which each week's outcomes become the next week's data, and uses it to trace the Traverse from one steady growth path to another after technological change. Lachmann admires the construction's elegance but finds it bought too cheaply: a one-commodity world, static expectations, and thin substitution suppress precisely what an Austrian theory exists to explain. Static expectations betray the cause most of all, for an actor who merely expects tomorrow to resemble today loses the open-ended character of economic action. Temporality alone, he concludes, does not make a theory Austrian.
To "Austrian" thinking the diversity of expectations is a feature of the world no less significant than the diversity of preferences. They really belong together.
Neo-Ricardian critiques advancing, neoclassical theory unsettled, Keynesianism itself in crisis: economics in the mid-1970s struck Lachmann as a discipline in turmoil, and his answer is a deliberate act of dissent. In an age of divergence, he argues, a distinctly Austrian voice must be raised before its insights dissolve into the neoclassical synthesis. Hicks having preempted 'neo-Austrian' with a theory resting on static expectations and a single good, Lachmann simply reclaims the plain word Austrian. He grants the neo-Ricardian exposure of circularity in aggregate capital measurement yet faults its retreat to objective cost, and locates the real quarrel elsewhere: not mathematics but knowledge. Where neoclassical theory treats knowledge as a given datum and presumes universal market awareness, Austrian economics studies the market as a process that diffuses, creates, and renders knowledge obsolete.
When factions are already in existence, who can be blamed for being factious?
Not refutation but neglect scattered the Austrian economics that Mises and Hayek had led around 1930; exile, the Anschluss, and the rise of Keynesian thought did the rest. Ludwig Lachmann treats the later revival as a rescue: because the earlier concepts were forgotten or linguistically transformed, they must now be actively retrieved. He reopens Hans Mayer's causal-genetic account of how real market prices actually form, Hayek's problem of knowledge at once dispersed and diffusable, and the Knight-Austrian capital controversy, arguing that capital theory must be rebuilt from individual decision-making rather than from social aggregates that presuppose one evaluating mind. Offered as a birthday tribute to Terence Hutchison, the essay makes technical knowledge itself a weapon in competition.
Where the storage of ideas failed we must at least make an attempt at their salvage.
Rejecting a stationary economy need not mean rejecting equilibrium analysis. In this 1939 review of Moses Abramovitz’s An Approach to a Price Theory for a Changing Economy, Ludwig M. Lachmann draws a sharp distinction between claiming that markets tend towards equilibrium and using equilibrium to test whether entrepreneurs’ plans can fit together. He welcomes Abramovitz’s attention to investment, time and expectations, but argues that abandoning market analysis leaves those plans disconnected. Forward markets supply Lachmann’s alternative: a framework for relating expected prices across dates. This brief, pointed review offers a concrete way to reconsider the supposed opposition between equilibrium and change—and shows why Lachmann finds an implicit equilibrium concept in the very approach that rejects it.
Profits need not fall for a boom to end: they may simply cease to exceed entrepreneurs’ rising expectations. In this review of G. L. S. Shackle’s Expectations, Investment and Income, Ludwig M. Lachmann welcomes that possibility but presses a harder question: why do expectations change, and why should producers respond alike? His criticism distinguishes an explanation of individual investment decisions from an explanation of economy-wide turning points. Pauses to consolidate existing businesses, he argues, cannot account for the sudden growth of new industries; invoking disappointed expectations leaves entrepreneurial exuberance unexplained. His approval of Shackle’s asymmetric multiplier—different responses to rising and falling incomes—makes this a discriminating assessment of what expectations-based cycle theory promises and what it still needs to explain.