3,801 works, 471 books, 3,267 articles, 60 other works, 3 awaiting classification, 150 years of economic thought. Each one summarized and searchable, with cited passages inside.
Written as Germany braced for a sweeping Finanzreform, this three-part essay turns a technical fiscal question into a sociology of taxation. The income tax, Schumpeter argues, is the finest instrument liberal fiscal technique ever devised, yet at high progressive rates it transforms the whole economic man and everything he does. His immediate remedy is the Verbrauchseinkommensteuer, a consumption-income tax that exempts saved and invested income to protect capital formation and end the double taxation of savings. The deeper claim is historical: the income tax was the fiscal child of bourgeois liberalism, of private acquisition, competition, and the cheap state, and as cartels, combines, and public enterprise displace that world, and as taxpayers cease to recognize the legislator's aims as their own, the levy becomes a penal correction of income distribution destined to lose its rationale.
Die Einkommensteuer ist unser schönstes und bestes finanzpolitisches Instrument, das Rückgrat unseres – und jedes kultivierten – Steuersystems, aber wir haben ihm zuviel zugemutet und müssen es für die nächste Zeit etwas entlasten.
English translation: “The income tax is our finest and best fiscal instrument, the backbone of our—and of every civilized—tax system; but we have asked too much of it and must for the time being relieve it somewhat.”
Capital can return after a war without restoring the institutions that once coordinated its movement. In this lecture, delivered in 1928 and published in 1929, Felix Somary approaches that discrepancy as both economist and banker, concerned with decisions that cannot wait for historical hindsight. His distinctive focus is the shift from British commercial finance to American securities speculation: optimistic share valuations can give expanding firms exceptionally cheap capital, even as they expose investors to disappointed expectations. Financial recovery, he argues, also leaves foreign property vulnerable to nationalism and weak legal enforcement. The lecture offers a concrete way to distinguish abundant funds from an effective financial order—and to see how the same investment mechanisms can finance industrial experimentation while widening divisions between secure creditor economies and insecure destinations.
An unchanged bank interest rate need not mean an undisturbed economy. In this brief conference intervention, published in 1929, Friedrich August von Hayek argues that improved profit prospects or reduced saving can raise the “natural” rate while banks continue lending on their previous terms. Challenging an assumption he identifies in both Löwe and Mises, he locates the source of monetary fluctuations within the organization of credit, rather than solely in deliberate rate reductions. Banks cannot reliably distinguish savings from credit-created deposits, while competition encourages lending up to the limits of safety and liquidity. The interest of this contribution lies equally in Hayek’s qualification: explaining why fluctuations arise does not establish why historical cycles have their particular scale and duration. It offers a compact encounter with the boundary between a theoretical mechanism and an adequate empirical explanation.
Before judging Germany’s foreign borrowing, what debts had actually been incurred, by whom, and on what terms? In this short review, Fritz Machlup praises Kuczynski’s documentation for giving a noisy controversy a factual footing. His distinction is pointed: he values systematic empirical work while distancing it from the “empirical-realist” school of economics. Praise is tempered by unease over public bodies’ substantial share of foreign debt and by the suggestion that official interventions probably worsened borrowing terms. The review offers a compact instance of Machlup’s critical priorities: reliable evidence is necessary for policy argument, but collecting it does not settle whether borrowing abroad is desirable.
Why would investors accept tiny yields on shares while farmers struggled to borrow even at seven or eight percent? In this closing contribution to a scholarly debate, originally published in 1929, Felix Somary insists that the puzzle concerns the allocation of capital, not simply its scarcity. His example is Sofina, whose high share price dwarfed its dividend; the relevant yield, he reminds an interlocutor, must be calculated against market price rather than nominal value. Alongside his defence of a German debt-consolidation loan, Somary advances a tentative social explanation: income has shifted from older rentiers towards younger speculators. The exchanges expose a precise disagreement over what investors seek from securities—and why settling international debts might not resolve the distortions in long-term lending.
Excluding seasonal workers might balance an insurance fund’s accounts—but would it reduce the cost of unemployment? In this 1929 newspaper article, Emil Lederer challenges proposals to restrict German unemployment insurance after a harsh winter exposed its financial weakness. He accepts the need for stronger financing while rejecting the assumption that workers in high-risk occupations can provide for themselves. His calculation of construction workers’ wage premiums tests that assumption concretely: even saving the entire premium would yield only meagre support through months without work. Combining wage arithmetic with a defence of shared economic risk, Lederer shows how apparent economies could transfer costs to welfare offices and other public institutions. His case for higher contributions turns on the difference between repairing insurance and merely moving its obligations elsewhere.
When the Methodenstreit pitted Menger's theoretical economics against the German historical school, the deeper logical question, whether a science of human action is even possible, went unanswered. Mises returns to it here, arguing that sociology, with economics as its most developed branch, yields universally valid laws rather than Max Weber's ideal types. Scarcity, choice, and the economic principle are not habits of the capitalist epoch but conditions of all action; Gresham's law and subjective value theory hold wherever their premises obtain. He faults historians who imagine they work without theory while leaning on outdated folk economics, and rejects the historicist and Marxist claim that economic laws are bound to particular epochs, a device, he argues, for evading criticism of socialist calculation. History, he concludes, begins only where theory leaves off.
Ohne Theorie ist Geschichte nicht zu denken.
English translation: “History is unthinkable without theory.”
What makes a change in an economy 'structural' rather than a passing fluctuation? Bayer answers by first building a theory—the national economy as an ordered configuration of households, enterprises, groups, and the proportions among them—and then testing it on Austria after 1918. Only durable alterations in these relations count as Strukturwandlungen; a shift confined to a single firm or household does not. Cut off from the imperial market, small-republic Austria had to knit its branches into a new internal coherence: sugar, coal, and water power expanding toward domestic self-supply, dairy displacing cattle-fattening, cartels and foreign capital reorganizing industry and banking. Economic law, Bayer insists, survives every structural upheaval of power; recovery is a matter of proportion and coordination, not the mere shrinking of overdeveloped branches.
Dieses Bild günstiger wirtschaftlicher Entwicklung hebt sich von düsterem Hintergrunde ab: Die Einkommensverschiebung in und zwischen den Lebenshaltungsgruppen verläuft, von einzelnen relativen Veränderungen abgesehen, in der Richtung allgemeiner Verarmung.
English translation: “This picture of favorable economic development stands out against a somber background: the shift of income within and between the standard-of-living groups proceeds, apart from certain relative changes, in the direction of a general impoverishment.”
A pot’s shape cannot tell us who made it, how it travelled, or why its makers declined a seemingly useful innovation. In this 1929 encyclopedia contribution, Richard Thurnwald brings comparative ethnography to the problems of prehistoric interpretation, treating technology as inherited skill and socially organized practice rather than an inventory of objects. Pottery anchors his inquiry: mobility can favour baskets over ceramics, trade can obscure production sites, and tribute obligations can reshape the division of craft labour. Ritual precautions, too, enter his account of how difficult skills are learned and sustained. Although his classifications and conjectures retain assumptions of contemporary ethnology, his concrete comparisons expose a persistent interpretive danger: mistaking material resemblance for shared history, or technical possibility for inevitable adoption.
When two price indexes diverge, what establishes which one is wrong? In this 1929 review of Warren Milton Persons’s The Construction of Index Numbers, Gottfried Haberler challenges the assumption that mathematical consistency tests can settle questions of economic measurement. He questions why price and quantity indexes must use identical averaging formulas, and rejects Persons’s inference that cumulative divergence from a fixed-base series discredits chain indexes. For Haberler, comparisons between adjacent periods have an advantage: they reduce the heterogeneity of the goods being compared. This compact technical review shows how a dispute over formulas turns on a substantive question—whether the observations remain economically comparable—and distinguishes proof of divergence from proof of error.
Reviewing Hans Neisser's Der Tauschwert des Geldes, Hayek praises a disciplined synthesis of German monetary theory while doubting the very object at its centre—the 'general' value of money and the price level. He approves Neisser's refusal to mistake Fisher's equation of exchange for a causal theory, treating it instead as a way of displaying the variables still to be explained, and singles out the analysis of credit money—bank deposits, cheque money, note-issuing banks, discount policy—as the book's finest achievement. Crucial to both men is that money represents 'pure demand,' not tied to a simultaneous supply of goods, and so 'acquires a life of its own.' Skeptical of velocity and aggregate magnitudes, Hayek uses the occasion to sharpen his own preference for a theory built on credit, cash demand and the coordinating role of interest.
Neisser very correctly emphasizes that the equation itself is very far from offering even a theory of the value of money.
If the United States has a comparative advantage in steel, should it abandon wheat production and depend on Luxembourg’s harvest? Haberler uses this deliberately disproportionate pairing to distinguish gains from trade from the demand for complete specialization. In this 1929 article, his defence of comparative cost proceeds by limiting what the principle claims: money prices do not overturn comparative advantage, but production costs alone cannot determine which goods a country exports and imports. Answering James W. Angell and A. F. Burns, Haberler separates genuine qualifications from supposed refutations. Readers can discover how a classical proposition survives these objections through sharper distinctions—while Haberler leaves unresolved the deeper problem of its reliance on a labour theory of value.