The archive.

A decade of stagnation, the young Hayek observes, had settled over general economic theory since Wieser's great synthesis seemed to leave nothing further to do—until Leo Schönfeld's Grenznutzen und Wirtschaftsrechnung. This 1925 review, here in English translation, greets that book as a genuine reopening of the field. What draws Hayek is Schönfeld's attempt to ground marginal utility not in a fixed, independent system of needs but in the process of economic calculation itself, distinguishing a logically complete theoretical reckoning from the abbreviated procedures of practice and building outward through combinations of decisions, isolated individual utilities, and a principle of economic quid pro quo. Hayek doubts whether maximum total utility can really be found by comparing isolated utilities, yet judges the work unusually mature and exact—regretting only that its promised later volumes never appeared.

It was also to remain the last noteworthy achievement in this field for a long time.

A monetary doctrine can guide policy effectively while leaving its causal explanation incomplete. That tension shapes Hayek’s review of the German translation of Gustav Cassel’s Das Geldwesen nach 1914. He praises Cassel’s practical guidance but challenges the direct link drawn between the quantity of money and the general price level: monetary effects, Hayek insists, unfold through successive changes in individual prices. His objection exposes a further assumption—treating price stability as the normal condition can make every departure appear monetary in origin. The review offers a compact encounter with Hayek’s scrutiny of policy remedies: even a credit restriction capable of preventing depreciation and crises must be judged against its possible cost to economic development.

A stable price index need not mean that money has ceased to disturb economic life. This distinction drives Hayek’s 1926 combined review of monetary studies by J. R. Bellerby and G. M. Verrijn Stuart. He challenges Bellerby for assuming that price-level stabilization supplies the proper policy goal, while crediting Verrijn Stuart with attempting to justify that connection—and finding his proof wanting. Hayek’s criticism is discriminating: he values Bellerby’s practical comparisons and Verrijn Stuart’s account of interest and monetary value without accepting their central premise. The review offers a compact encounter with a precise monetary problem: what must be demonstrated before an average of changing prices can serve as evidence that money is leaving price and income formation undisturbed?

How can the value of a single productive good be extracted from a utility that several goods together bring about? This is the imputation problem—Zurechnung, a term Wieser had borrowed from law—and Hayek treats it in 1926 not as a footnote to marginal utility but as the decisive next step in grounding distribution on subjective value. He surveys the Austrian solutions of Menger, Böhm-Bawerk, and Wieser, sets marginal productivity in its place as a supplement rather than an independent answer, and exposes a circularity at the heart of the received theory: product values are derived from factor values through cost, yet factor values are supposedly read off product values. His restatement recasts the whole question as one of allocating given quantities of productive goods among competing lines of production according to the scales of needs—soluble only for the entire economic system at once.

Wieser betrachtet den Wert als die Rechenform des Nutzens.

English translation: “Wieser regards value as the computational form of utility.”

When Friedrich von Wieser died in July 1926, Hayek—his student—wrote this memorial for a man he ranks among the greatest teachers of theoretical economics and a formative presence in Austrian public life. He follows Wieser from a youthful passion for history, redirected by Spencer and Tolstoy toward the search for the impersonal regularities of social life, through the decisive encounter with Menger's Grundsätze, to a mature theory of subjective value. Hayek presses Wieser's priority in the cost law that treats costs as indirect utility, praises Der natürliche Wert for analyzing value in a hypothetical simple economy, and calls the Theorie der gesellschaftlichen Wirtschaft the only closed system the modern subjective school has yet produced. He closes by setting Wieser's cultural range and humanity beside Goethe.

Die Volkswirtschaft aber kann man nicht erklären, ohne den Wert erklärt zu haben!

English translation: “But one cannot explain the economy without having explained value!”

Sound research does not necessarily warrant a book: that distinction gives Hayek’s brief 1927 review of Andreas Révai its edge. Révai explains fluctuations in the French franc through Ricardo–Cassel purchasing-power parity theory, and Hayek commends his choice of statistical evidence, command of foreign-language scholarship, and usefulness for university teaching. Yet he leaves open whether such studies, however suitable as dissertations, justify separate publication. The review offers a compact example of Hayek’s critical standards: approval of an economic explanation and its empirical support remains distinct from a judgement of its significance as a publishing contribution.

Advice on shelving and folder labels becomes the decisive exhibit in Hayek’s sharp 1927 review of Erich Schäfer’s Die Wirtschaftsbeobachtung. Schäfer draws on experience in the German porcelain industry’s economic archive; Hayek objects not to practical instruction itself, but to its presentation as a theoretically grounded contribution to economic observation. He contrasts the book’s epistemological ambitions with elementary administrative advice, quoting a passage on archive furniture to make the mismatch tangible. This brief review shows Hayek judging scholarship by the connection between its theoretical claims and its practical substance—and lets readers assess how far his concrete example warrants his sweeping dismissal.

Can banks create the credit needed for investment without creating the savings on which real capital formation depends? In this short 1927 review, Friedrich August von Hayek endorses Heinrich Mannstaedt’s critique of Albert Hahn while adding a pointed distinction of his own: lending can draw deposits away from an individual bank without withdrawing them from the banking system as a whole. Hayek praises Mannstaedt for pursuing Hahn’s theoretical reasoning more consistently rather than merely citing contrary facts. His judgement turns on the gap between credit creation and capital formation: credit may stimulate saving under certain conditions, but cannot replace it. The review offers a compact encounter with Hayek’s standards of theoretical criticism and his insistence on distinguishing monetary possibilities from their real economic effects.

Why did authoritative explanations of the mark’s depreciation prove, in Hayek’s judgement, so damaging to German currency policy? This short 1927 review of Rüdiger von der Goltz’s comparison of German exchange-rate theories with Goschen’s earlier account locates the failure in economists’ neglect of monetary theory, not simply their unfamiliarity with currency questions. Hayek singles out the balance-of-payments explanation for criticism and honours the few economists who opposed it without securing practical success. His qualified assessment of Goltz—sufficiently careful, but missing important contributions and offering little independent insight—makes the review more than an endorsement. It offers a compact statement of Hayek’s insistence that theoretical errors can carry policy consequences, without presenting an alternative exchange-rate model.

Since Böhm-Bawerk, the interest problem had seemed to demand a single answer: capital yields interest because men systematically undervalue future wants. This 1927 essay refuses that psychological premise. Reframing the question, Hayek argues that the puzzle is not why present goods outrank the future products made from them, but why longer and shorter production processes are not extended until their yields carry equal value. Because time-consuming, roundabout methods raise physical output, such equalization would perversely require the larger future stock to fall below the present one in marginal utility. Drawing on Wieser, Mayer, Schönfeld and Strigl, he insists that whole temporal plans of provision, not isolated utility comparisons, govern intertemporal choice—and that interest belongs to static equilibrium, dissolving the 'dynamic' theories that treat it as an anomaly.

Macht die Böhm-Bawerksche Formulierung des Kapitalzinsproblemes die Annahme einer Minderschätzung künftiger Bedürfnisse unvermeidlich?

English translation: “Does Böhm-Bawerk's formulation of the problem of interest on capital make the assumption of an underestimation of future wants unavoidable?”

All economic activity unfolds through time, and static theory, by treating every exchange as if prices formed at a single instant, suppresses a central function of prices: coordinating production and consumption across dates. Extending rather than abandoning equilibrium analysis, Hayek argues that even a stationary economy needs different prices for technically identical goods available at different moments, exactly as it accepts different prices for goods in different places. From this he derives a sharp critique of price-level stabilization: when productivity rises, equilibrium requires prices to fall, and any currency—gold or deliberately managed—that resists this movement falsifies the intertemporal signals allocating resources between present and future, with effects analogous to inflation. Monetary disturbance is thus not mere change in the value of money but disruption of the whole intertemporal price structure through which dated plans are coordinated.

Alles Wirtschaften erstreckt sich in der Zeit.

English translation: “All economic activity extends through time.”

Does calling an economy “dynamic” help explain interest, or merely shift the terms of the problem? In this review of Gerhard Heinze’s comparison of Cassel, Schumpeter, and Böhm-Bawerk, Hayek singles out unstable concepts as a weakness in rival explanations. He endorses Heinze’s pointed observation that entrepreneurial creativity is itself a datum, just as the valuations of agents in a static economy are. Yet his approval is discriminating: neglecting Wicksell weakens the discussion of bank and real interest, while other omissions leave important alternatives unexamined. This brief review shows why Hayek judged Böhm-Bawerk’s explanation stronger than Cassel’s and Schumpeter’s without treating it as immune to criticism: logical consistency and closeness to economic facts matter more than claims to theoretical novelty.