Steiner's claim that every article has a determinable number of traders at which the merchant class most cheapens it, fewer and more both being harmful.
The Optimum Number of Traders in Anthroposophy is Rudolf Steiner's economic principle that for every article there exists a determinable number of merchants at which trade most cheapens that article, and that both fewer traders and more traders make it dearer. Steiner set it out in the Political Economy Seminar (GA 341), the six discussion sessions he held at Dornach from 31 July to 5 August 1922 alongside the National Economy Course. His starting claim reverses the common assumption: trade does not add cost to a price, it removes cost, because the division of labour between producer and dealer spares fifty tailors fifty separate journeys to market. That saving has a ceiling. Steiner described the relation not as a straight progression but as a maximum-minimum direction, with one point of most favourable influence for the merchant class. Under rational economic activity, he held, this number is calculable, as is the number of producers.
The optimum number of traders is the answer Steiner gave when a seminar participant asked what happens if a market carries more dealers than it can justify. His reply refused both poles of the usual argument. Merchants are not parasites on price, and they are not infinitely useful either. Each article carries its own trading quota, and an economy can read that quota if it thinks economically.
In Steiner's Own Words
If there is any rational economic activity at all, then the number of traders can be determined, as can the number of producers. Today, you have the principle of rational economic activity nowhere. People do not consider how an enormous amount of unnecessary work is done. Just think of the printing press. If you were to spare all this unnecessary work, then you would get an approximation to the natural numbers everywhere. Sparing unnecessary work already provides a reduction of the natural numbers of the people employed in a sector. Today, the fact is that the merchant class actually consumes more than the producers themselves. At least for Germany.
What it Means Today
Twenty-eight years after the Dornach seminar, an economist at Duke University gave the same worry a formal shape. Joseph J. Spengler published "Vertical Integration and Antitrust Policy" in the Journal of Political Economy in August 1950, showing that when two firms in a chain each add a margin to the same good, the final price climbs above what one integrated seller would charge. Industrial economists call the result double marginalisation, and teach it as the reason a long distribution chain can price a product out of reach of the people who want it. Spengler was not reading Steiner, and his instrument was algebra rather than an associative picture of economic life. The two arrive at the same structural fact: intermediaries are neither free nor uniformly costly, and the count matters. Steiner supplies the half Spengler leaves out, that falling below the workable number is also harmful, since the tailor who carries his own suit to market pays for the journey in time that no ledger records.
Thalira synthesis: the maximum-minimum direction is less a compromise between two goods than a threshold of perception, the point at which an economy can still see the whole distance between the maker and the user of a thing, past which the merchant class becomes, in Steiner's word, masked.
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