Friedrich August von Hayek, Studies in the Theory of Money and Capital (1940)

Hayek’s journal book review assesses Erik Lindahl’s Studies in the Theory of Money and Capital, published in English in 1939. Its central judgment combines recognition of Lindahl’s pioneering contribution with regret over its delayed international reception. Ideas first outlined in Swedish roughly a decade earlier could, Hayek argues, have supplied economists with a common framework when monetary and dynamic problems were beginning to attract widespread attention. Their belated availability diminishes their novelty without diminishing their historical importance.

This careful and systematic discussion of problems which then were just beginning to attract the attention of economists in many centres would have provided a common starting-point of the greatest value and would probably have speeded up progress considerably by preventing much confusion and misunderstanding, out of which we are only slowly emerging.

The claim concerns more than priority. Hayek presents accessibility as a condition of cumulative theoretical progress: incomplete, second-hand knowledge of Lindahl’s arguments left other economists working through difficulties that a systematic exposition might have clarified earlier. By the time the English volume appeared, much that could once have been revelatory represented a stage through which its readers had already passed. Hayek thus separates the present experience of reading the book from its unrealized capacity to have shaped the preceding decade’s debates.

The review next describes the volume’s organization. Its three principal contributions appear in reverse chronological order, followed by an appendix on balancing the budget. The opening essay, “The Dynamic Approach to Economic Theory,” was written for the volume and restates the problems of modern period analysis. “The Rate of Interest and the Price Level” is a substantially abridged version of Lindahl’s 1930 work on the instruments of monetary policy. Hayek credits that earlier work with helping initiate a new phase of Swedish monetary discussion. The final main essay, “Place of Capital in the Theory of Price” (1929), is the oldest contribution and, for Hayek, the most enduring.

It is the one where Professor Lindahl remains closest to the views of his master Wicksell and where he has made a very important attempt really to incorporate capital theory into the general theory of price.

This preference supplies the review’s principal theoretical distinction. Hayek values the earliest essay for treating capital as an integral problem of price theory rather than allowing monetary questions to dominate the inquiry. Its connection with Wicksell matters because it sustains that integration. Hayek explicitly recognizes that his preference may be unfashionable, and cautiously suggests that the relative neglect of “real” problems has helped preserve the essay’s freshness. The judgment contrasts permanent theoretical value with the immediate prominence of contemporary debates; it does not deny the importance of Lindahl’s subsequent monetary work.

Indeed, the concluding paragraph credits Lindahl with becoming a leader in the movement toward monetary analysis. Hayek identifies a different achievement in each of the later essays:

The second essay in the volume in particular will remain the locus classicus for the important distinction between the ex ante and ex post views of economic process which has proved of such great value in the analysis of dynamic processes, while the new first essay is undoubtedly the clearest and most systematic exposition of the modern "period analysis".

The distinction between prospective and retrospective views of economic processes receives strong endorsement, while period analysis is praised for its clarity and systematic presentation. Hayek does not reconstruct these methods in detail; his purpose is to locate their significance and assess the contributions collected in Lindahl’s book. The review’s relevance lies in this compact ordering of achievements: capital theory promises the greatest lasting value, monetary analysis provides an influential dynamic distinction, and the newest essay clarifies an active methodological debate. Together, these judgments reveal both Hayek’s admiration for Lindahl and his concern that economics’ growing monetary emphasis should not displace the underlying problems of capital and price.