The archive.

Did the loss of an empire make Austria economically unviable? In this short 1926 address and accompanying discussion response, Mises separates the country’s diminished political territory from its prospects for recovery. He attributes fiscal stabilization to the end of subsidized government food purchases, monetary financing, and excessive expenditure, while warning that budget balance alone does not secure recovery. His reply to a question about Vienna sharpens the distinction: the city’s livelihood rested on industry, finance, and trade, not simply on imperial administration. Even as its financial role declined, he argues, commerce among the successor states offered new opportunities. The pairing captures Mises’s qualified optimism at a concrete postwar juncture, with domestic reform constrained by European trade barriers rather than national size alone.

Defining an economic equilibrium does not explain what brings it about. In this second reply to Franz Oppenheimer’s reconstruction of objective value theory, Alfred Amonn tests that distinction against occupational choice: a worker may be capable of better-paid work yet prefer an easier job, so lower earnings do not establish inferior ability. His criticism targets the passage from convenient assumptions to purported explanations. Most sharply, he argues that taking the relative values of different kinds of skilled labor as given leaves a general theory of value assuming what it should explain. The exchange offers a concrete way to examine the limits of economic abstraction: when does a definition clarify a causal problem, and when does it merely conceal an unanswered question?

Vienna’s commercial privileges could protect a market without producing merchants willing—or able—to expand beyond it. In this archival article, Friedrich Engel-Janosi examines the city’s loss of commercial reach from the mid-fifteenth to the mid-sixteenth century, with evidence extending into a later, partial recovery. He connects warfare, currency debasement, and foreign competitors’ superior credit networks with a more difficult question: did merchants increasingly prefer secure household wealth to an enduring enterprise? Tax assessments and wills suggest an investment ideal centred on property and independence, while Alexius Funk’s ledgers disclose overdue payments and debts settled in goods. Read together, these records allow readers to weigh Engel-Janosi’s interpretation of diminished commercial ambition against the insecurity that made caution reasonable.

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.

Mises opens this brief review by contrasting two kinds of socialist historiography: scholarship absorbed in personal trivia and scholarship that clarifies economic ideas. Rodbertus’s letters to Schumacher, edited by Robert Michels and Ernst Ackermann, earn his approval for their attention to agricultural credit, rent, and the social question. His praise is not an endorsement of Rodbertus’s doctrines; it concerns what the correspondence and its supporting documents make intelligible. Even without Schumacher’s replies, Mises finds evidence illuminating both Rodbertus’s thought and Germany’s early imperial years. The review offers a compact instance of Mises judging historical scholarship by its explanatory value rather than dismissing it for its subject’s politics.

A wealth of economic statistics does not, for Morgenstern, amount to a reliable means of prediction. His 1927 review of Hardy and Cox’s Forecasting Business Conditions praises its guide to American forecasting services while challenging its promise to make businessmen independent forecasters. Production figures, freight data, and price indices offer information; they do not tell users which indicators to trust or explain the processes behind them. Morgenstern’s distinctive concern is the pressure commercial demand places on unsettled science: impatience with theory cannot establish predictive competence. Nor does his criticism imply that he possesses a better forecasting method. This short review makes a precise distinction between a handbook’s documentary usefulness and the authority of the practical techniques it recommends.

American banks expanded abroad while New York and California barred foreign banks from opening branches at home. This asymmetry gives Oskar Morgenstern’s 1927 review of Clyde William Phelps’s The Foreign Expansion of American Banks its critical edge. Rather than rest with war and growing trade as explanations, Morgenstern stresses the legal permissions and acceptance market that made overseas expansion possible. He also asks how long unequal access could persist: in his judgement, European dependence on New York capital restrained retaliation, but could not be assumed permanent. His qualified appreciation of Phelps’s history offers a compact view of the institutional conditions behind banking expansion—and of the difference between international financial reach and willingness to admit foreign competitors.

A wage law may work as designed without securing the social peace it promises. This distinction frames Oskar Morgenstern’s 1927 review of E. M. Burns’s Wages and the State: the efficiency of regulatory machinery and the suitability of its aims require separate scrutiny. He values Burns’s comparative evidence, especially from Australia and New Zealand, as a necessary basis for that inquiry. Yet his praise also draws attention to unresolved standards: what makes a wage “fair,” which family’s needs count, and what can an industry afford? This short review shows Morgenstern joining empirical demands to conceptual criticism, while endorsing Burns’s turn from wage-setting rules toward the underlying causes of low pay.

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.

A theory can cease to suffice without ceasing to deserve understanding. In this short 1927 review of James Bonar’s The Tables Turned, Oskar Morgenstern finds a way to appreciate classical economics without defending its continued supremacy. He praises Bonar’s pairing of a lecture with an imaginary conversation in Elysium, where Adam Smith meets his successors to discuss what The Wealth of Nations can still offer. Morgenstern’s enthusiasm for this literary device accompanies a precise historical judgement: classical achievements must be measured against the problems their authors faced, not merely against present needs. The review offers a compact statement of that distinction—and turns it back upon contemporary economists, whose own questions and answers will also become historical.

Auch die gegenwärtige Generation wird einmal der Vergangenheit angehören, mit den Fragen, die sie beschäftigen, und mit den Antworten, die sie zu geben versucht.

English translation: “The present generation too will one day belong to the past, together with the questions that occupy it and with the answers it attempts to give.”

For Mises, the missing words in Keynes’s title are decisive: laissez-faire belongs with laissez-passer, the free movement of people and goods. This brief 1927 review of Keynes’s Das Ende des Laissez-Faire turns less on the proposed regulation of private ownership through semi-autonomous bodies than on protectionism and migration restrictions. Mises brings those omissions into focus through the predicament of displaced people and would-be emigrants barred from competing for work abroad. His challenge is pointed: can liberalism be blamed for distress produced, in his judgement, by its abandonment? The review offers a compact encounter with Mises’s insistence that property, trade, and human mobility cannot be assessed as separate freedoms.