Frank Albert Fetter, Clark’s Reformulation of the Capital Concept

Frank Albert Fetter’s Festschrift essay, originally published in 1927 and reprinted in the supplied 1977 edition, honors John Bates Clark by examining both the achievement and the unfinished business of his capital theory. Its nine sections move from an exposition of Clark’s doctrine through possible intellectual sources and political stimuli to a critical survey of subsequent economists. Fetter’s governing argument is that Clark exposed a fundamental ambiguity: economists formally defined capital as concrete productive goods but repeatedly treated it as an investment value when analyzing business and interest. The essay becomes a demand that economic theory acknowledge the financial conception already indispensable to its practice.

Fetter identifies five connected innovations in Clark’s Capital and Its Earnings, which the body dates to 1888. Clark distinguished concrete capital goods from abstract “pure capital,” understood the latter as a fund of value, included land among capital goods, extended rent to the earnings of all material instruments, and treated interest as those earnings expressed relative to capital value. Thus rent and interest did not identify separate incomes belonging respectively to land and manufactured equipment; they presented returns in different forms. Accepting these propositions would overturn the conventional division of distribution into sharply separated factors and corresponding earnings.

The historical inquiry qualifies any account of Clark as an isolated inventor. Earlier American economists had frequently included land within capital and emphasized its valuation. Fetter connects this tradition with conditions in which land was readily traded, speculative investment was widespread, and landowners did not constitute a distinct feudal class. Yet he finds little evidence that Clark consciously inherited these writers’ arguments. His broader complaint is that American economists neglected their indigenous intellectual resources while turning either to German scholarship or renewed Ricardian orthodoxy. Clark’s conceptual reform recovered contact with economic circumstances:

It was a new and distinct declaration of independence for American economic thinking.

German antecedents complicate that independence without cancelling it. Clark’s study under Karl Knies provides a plausible connection with distinctions between productive instruments and income-bearing possessions developed by Hermann, Rodbertus, Wagner, and Knies. Fetter treats this influence as strongly probable, although Clark’s writings offer little direct documentation. The historical problem is therefore why ideas available to many German-trained Americans became disruptive in Clark’s hands. Originality, Fetter suggests, can consist in an effective rediscovery or restatement under favorable circumstances rather than an unprecedented invention.

Henry George’s single-tax agitation supplies the likely immediate stimulus. By including land within investment capital, Clark could oppose confiscation of land values as an attack on property enjoying the same claims as other investments. Fetter reads the ostensibly abstract monograph against this political controversy. But the polemical origin also reveals theoretical weaknesses. Clark’s appeal to a purchaser’s personal sacrifice cannot explain the value land possessed before purchase; his language of capital’s continual destruction and replacement fits imperishable land poorly. More fundamentally, he had not consistently distinguished the technical production of objects from the financial valuation of rights to income. Fetter nevertheless preserves the importance of the advance:

Nevertheless, his great achievements in this matter were that he brought out into the open the old ambiguity between "capital value" and certain concrete things called capital, and that he presented "capital" as essentially an investment concept; and that he gave a broader reading to the idea of rent.

The reception survey measures subsequent economists against this distinction. Böhm-Bawerk’s restriction of capital to produced means of production, Fetter argues, obstructs his own account of time-related value differences, which also occur in land uses, services, and legal rights. Taussig and Seager likewise retain older definitions while resorting to investment values in practical analysis. Marshall’s elaborate accommodation of individual and social capital receives especially sharp criticism: proliferating definitions and contextual qualifications conceal rather than resolve contradictions. Across these cases, the recurring evidence is that discussions of investment and percentage returns require monetary valuation despite formal commitments to physical goods.

The Yale discussion brings Fetter’s own conceptual alternative into focus. Hadley’s distinction between property, investment, and social wealth earns praise for separating acquisition from production. Fisher’s stock–flow terminology, however, initially contrasts quantities of material things and later juxtaposes a stock of wealth with a flow of services. For Fetter, neither formulation adequately captures Fisher’s actual financial analysis. Durable instruments need not become consumable goods, and services cannot literally accumulate into a physical stock. The relevant comparison is between successive income valuations and their discounted present worth:

Only through the common element, valuation, do capital as a valuation fund and income as a valuation flow become comparable.

The concluding survey finds broader movement toward this position in Seligman, Turner, Ely, Taylor, Bye, Boucke, and Edie, although often accompanied by inherited definitions. Fetter’s final section converts the commemorative essay into a polemic against textbook ritual: obsolete distinctions are taught first and abandoned when substantive analysis begins. His positive formulation goes beyond Clark’s abstraction:

Capital is essentially an individual acquisitive, financial, investment ownership concept.

Capital therefore concerns legal claims to uses and incomes within a property and price system, rather than a particular category of physical wealth. Interest concerns time valuation throughout such claims, not merely returns on manufactured instruments. Clark’s lasting relevance lies in opening this route toward a coherent theory of capitalization. Fetter’s tribute is deliberately critical: honoring Clark means completing the conceptual clarification his work initiated.