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Can you respond to these criticisms
of marginal utlility?
Neoclassical theory argues that marginal utility determines demand and price, i.e. the price of a good is dependent on the intensity of demand for the marginal unit consumed. This was in contrast to classic economics, which argued that price (exchange value) was regulated by the cost of production, ultimately the amount of labour used to create it. While realistic, this had the political drawback of implying that profit, rent and interest were the product of unpaid labour and so capitalism was exploitative. This conclusion was quickly seized upon by numerous critics of capitalism, including Proudhon and Marx. The rise of marginal utility theory meant that such critiques could be ignored.
However, this change was not unproblematic. The most obvious problem with it is that it leads to circular reasoning. Prices are supposed to measure the "marginal utility" of the commodity, yet consumers need to know the price first in order to evaluate how best to maximise their satisfaction. Hence it "obviously rest[s] on circular reasoning. Although it tries to explain prices, prices [are] necessary to explain marginal utility." [Paul Mattick, Economics, Politics and the Age of Inflation, p.58] In the end, as Jevons (one of the founders of the new economics) acknowledged, the price of a commodity is the only test we have of the utility of the commodity to the producer. Given that marginality utility was meant to explain those prices, the failure of the theory could not be more striking.
Also, a criticism of Austrian school.
Yes, I've responded numerous times on this forum about criticisms to marginal utility. I, myself , have a criticism of how marginal utility is referenced in economic models , particularly by those economists of the the neoclassical disciplines.
However, that does not mean that the price of things or their value is determined by the costs of production. The costs of production is only taken into account when calculating profit margin. But say something costs $5 bucks to produce and in order to make a profit I have to charge more than $5. How do I know what price to charge? Could be $5.50 , could be $10 or $100. That's where I have to make an estimation of what consumers are willing to trade for on the margin. Consequently, if I charge too much then people would buy less forcing the price to go down.
Such an economic analysis only focusing on production costs literally takes the consumer out of the loop suggesting all consumers will mechanistically respond to whatever price is determined by a mathematical equation only using production variables. People , however , simply don't operate that way and there is no such thing as clairvoyance.
Ask yourself, why is a coffee at a coffee shop in a booming metropolitan area typically more expensive to buy than a coffee in a less commercial area? Is the value of the coffee and coffee shop determined by its own production or by the sprawling activity of people around it? Why could we not say the marginal value of the coffee is higher in one area as opposed to the other?
socialist, I have a feeling we're going to keep on going back and forth about this because it is not really economics we are discussing. Ideologically one of us is tied to the notion of what economics ought to be rather than what it actually is.
You can still be socialist minded and accept marginal theory within economics, there is no inherent contradiction there since socialism is not specifically an economic theory , not even Marxists ( serious ones) posit socialist-marxist economics as a positive theory of economics ( rather a negative one to discredit capitalism.) This is part of the reason why Marx said himself " I'm not a Marxist" because serious marxists do not make a positive case for socialist economic theory.
On top of that, marginal theory has nothing to do with necessitating class divisions. It merely talks about individual value scales and how this effects economics collectively.