Friedrich August von Hayek · 1928
Hayek’s essay is an early reconstruction of monetary theory around temporal equilibrium. It begins from the claim that ordinary static theory, by treating exchanges as if prices were formed simultaneously, suppresses a central function of prices: coordinating production and consumption across time.
Alles Wirtschaften erstreckt sich in der Zeit.
English translation: All economic activity extends through time.
The first sections therefore do not abandon equilibrium theory but extend it. Equilibrium need not mean that wants and productive conditions are identical at every instant; it means that agents’ plans are mutually consistent over a period whose dated conditions are foreseen. Even a stationary economy may require recurrent price differences for technically identical goods at different dates, just as static theory accepts price differences for goods at different places. Hayek’s key move is to make temporal position an economic quality.
Sobald man sich dies vor Augen hält, scheint es auch nicht mehr befremdend, sondern eigentlich selbstverständlich, daß auch im statischen System sonst gleichartige, aber in verschiedenen Zeitpunkten verfügbare Güter verschiedene Preise erzielen werden.
English translation: Once one keeps this in view, it no longer seems strange but actually self-evident that even in the static system goods otherwise of the same kind, but available at different points in time, will fetch different prices.
Sections 4–7 derive this from subjective valuation and intertemporal barter. A good available in a scarce season is not valued like the “same” good available in abundance; exchange between dated goods need not occur at 1:1. If an imposed relation makes future goods too cheap or present goods too dear, it redirects production and creates unmet demand. These relations are systemic: a changed seasonal scarcity in one good affects the intertemporal exchange ratios of other goods because all prices belong to one connected order.
Money does not dissolve this logic. Equal money prices at two dates correspond to an intertemporal exchange ratio of 1:1, and that ratio may be wrong. The changing marginal utility of money cannot replace the required ordering of successive prices. Thus movements in the “price level” may express real intertemporal scarcity, not a defect in money.
Die Gleichheit der Geldpreise einzelner oder aller Güter oder des «allgemeinen Preisniveaus» in zwei verschiedenen Zeitpunkten liegt ebensowenig im Wesen des Gleichgewichtszustandes wie die Gleichheit der Preise zweier verschiedener Güter in einem Zeitpunkt, obwohl beides im konkreten Fall selbstverständlich zutreffen kann.
English translation: The equality of the money prices of individual goods, of all goods, or of the 'general price level' at two different points in time belongs no more to the essence of the equilibrium state than does the equality of the prices of two different goods at one and the same point in time, although both may of course be the case in a concrete instance.
Sections 8–9 make the argument concrete through periodic and secular cases. Night fares, seasonal electricity rates, and harvest prices show why recurring differences can preserve equilibrium. Hayek then generalizes to continuing productivity growth. If production becomes easier over time but product prices are expected to remain unchanged, entrepreneurs are induced to shift resources from present supply into future output, expecting to sell the enlarged product at old prices. The result is not balance but overextension, later losses, and a forced correction.
Die weitere Untersuchung wird namentlich zeigen, daß bei einer allgemeinen Steigerung der Produktion ein Gleichgewichtszustand nur bei einem entsprechenden Sinken der Preise bestehen kann und in diesem Fall jedes Stabilbleiben der Preise zu zeitweiligen Störungen der Übereinstimmung von Angebot und Nachfrage führen muß.
English translation: The further investigation will show in particular that in the case of a general increase in production a state of equilibrium can obtain only with a corresponding fall in prices, and that in this case any constancy of prices must lead to temporary disturbances in the correspondence of supply and demand.
This is the basis of Hayek’s critique of price-level stabilization. A gold or other “bound” currency already tends partly to resist commodity-side price changes; a deliberately stabilized currency intensifies the distortion. Preventing prices from falling when productivity rises has effects analogous to inflation, because it falsifies the intertemporal price signals that would otherwise allocate resources between present and future uses. Hayek also rejects turning monetary neutrality into a simple policy ideal: a fixed money stock would best approximate the natural price system, but money substitutes make it practically impossible.
The later sections address empirical and doctrinal objections. The observed parallel between rising output and rising prices does not show that prosperity requires rising prices; it reflects movement around equilibrium after monetary price distortions have already misdirected production. Hayek also criticizes the idea that the total money supply must expand with “money demand”: a principle valid for distributing money among nations is falsely transferred to the world economy as a whole. The appendix adds that interest cannot substitute for intertemporal price movements. Interest limits the extension of production under capital scarcity; price changes adjust to shifts in physical productivity.
The essay’s relevance lies in its integration of price theory, capital theory, and monetary theory before Hayek’s later cycle writings. Monetary disturbance is not simply “change in the value of money”; it is the disruption of the intertemporal price system through which dated plans are coordinated.
Man wird sich mit dem Gedanken vertraut zu machen haben, daß das Geld immer einen bestimmenden Einfluß auf die Richtung des Wirtschaftsverlaufes nimmt, daß die für die geldlose Wirtschaft abgeleiteten Sätze daher nur mit großen Einschränkungen auch für die Geldwirtschaft gelten und das Ziel einer Geldpolitik daher nie allein sein kann, den Ablauf der Wirtschaft möglichst wenig zu beeinflussen, sondern daß immer gleichzeitig getrachtet werden muß, die unvermeidlichen Einwirkungen möglichst erwünscht zu gestalten.
English translation: One will have to become familiar with the idea that money always exerts a determining influence on the direction of the course of the economy, that the propositions derived for a moneyless economy therefore hold only with great qualifications for the money economy as well, and that the aim of a monetary policy can therefore never be solely to influence the course of the economy as little as possible, but that one must always at the same time strive to shape the unavoidable influences as desirably as possible.
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