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Marginal costs: Marginal cost is the cost incurred by producing one additional unit of a good or service. It is a critical concept in economics and business for determining the optimal production level and pricing strategies. Marginal cost includes all variable costs associated with production, such as materials and labor, and influences decisions on whether to expand or reduce production. See also Marginal utility, Marginal return, Price, Efficiency._____________Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments. | |||
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David Ricardo on Marginal costs - Dictionary of Arguments
Rothbard II 84 Marginal costs/Ricardo: (…) as population inexorably increases, and poorer and poorer lands are used, all the differentials keep increasing. Thus, say that, at one point of time, corn lands (which sums up all land) range in productivity from the highest, Land A, through a spectrum down to Land J, which, being marginal, earns a zero rent. But now population increases and farmers have to cultivate more and poorer lands, say K, L, and M. M now becomes the zero-rent land, and Land J now earns a positive rent, equal to the differential between its productivity and that of M. And all the previous infra-marginal lands have their differential rents raised as well. It becomes ineluctably true, therefore, that over time, as population increases, rents, and the proportion of income going to rent, increase as well. Yet, though rent keeps increasing, at the margin it always remains zero, and, as Ricardo put it in a crucial part of his theory, being zero rent does not enter into cost. Put another way: quantity of labour cost, being allegedly homogeneous, is uniform for each product, and profits, being uniform and fairly small throughout the economy, form a part of cost that can be basically neglected. Since the price of every product is uniform, this means that the quantity of labour cost on the highest-cost, or zero-rent, land, uniquely determines the price of corn and of every other agricultural product. Rent, being infra-marginal in Ricardo's assumptions, cannot enter into cost. >Economic rent/Ricardo, >Wages/Ricardo, >Economy/Ricardo. And, paradoxically, while rent keeps rising over time, it remains zero at the margin, and therefore without any impact on costs. RothbardVsRicardo: There are many flaws in this doctrine. 1) (…) even the poorest land in cultivation never earns a zero rent, just as the least productive piece of machinery or worker never earns a zero price or wage. It does not benefit any resource owner to keep his resource or factor in production unless it earns a positive rent. The marginal land, or other resource, will indeed earn less of a rent than more productive factors, but even the marginal land will always earn some positive rent, however small. 2) Second, apart from the zero-rent problem, it is simply wrong to think that rent, or any other factor return, is caused by differentials. Each piece of land, or unit of any factor, earns whatever it produces; differentials are simple arithmetic subtractions between two lands, or other factors, each of which Rothbard II 85 earns a positive rent of its own. The assumption of zero rent at the margin allows Ricardo to obscure the fact that every piece of land earns a productive rent, and allows him to slip into the differential as cause. >Causality/Philosophical theories. 3) (…) in discussing the rise in cost of producing corn, Ricardo reverses cause and effect. Ricardo states that increasing population ‘obliges’ farmers to work land of inferior quality and then causes a rise in its price. But as any utility theory analyst would realize, the causal chain is precisely the reverse: when the demand for corn increases, its price would rise, and the higher price would lead farmers to grow corn on higher-cost land. But this realization, of course, eliminates the Ricardian theory of value and with it the entire Ricardian system. 4) (…) as numerous critics have pointed out, it is certainly not true historically that people always start using the highest-quality land and then sink gradually and inevitably down to more and more inferior land. >Ricardo/Neoclassical Economics._____________Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution. Translations: Dictionary of Arguments The note [Concept/Author], [Author1]Vs[Author2] or [Author]Vs[term] resp. "problem:"/"solution:", "old:"/"new:" and "thesis:" is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition. |
EconRic I David Ricardo On the principles of political economy and taxation Indianapolis 2004 Rothbard II Murray N. Rothbard Classical Economics. An Austrian Perspective on the History of Economic Thought. Cheltenham, UK: Edward Elgar Publishing. Cheltenham 1995 Rothbard III Murray N. Rothbard Man, Economy and State with Power and Market. Study Edition Auburn, Alabama 1962, 1970, 2009 Rothbard IV Murray N. Rothbard The Essential von Mises Auburn, Alabama 1988 Rothbard V Murray N. Rothbard Power and Market: Government and the Economy Kansas City 1977 |