“For decades, classical economists like Adam Smith struggled to explain why water was cheap, while diamonds, largely useless luxuries, commanded a fortune. Austrian economist Carl Menger solved the diamond-water paradox by pioneering the concept of subjective marginal utility, pointing out that economists had mistakenly concluded that 'value in use' and 'value in exchange' were entirely separate concepts driven by production costs.” (Creative Deduction) Adam Smith was scientifically incompetent, and Menger was no better. The most obvious mistakes with his value theory are: (i) First of all, water and diamonds are different kinds of goods. Water is produced and consumed in one period; diamonds are forever. Menger confounded perishable consumption goods with non-financial assets, i.e., a physical store of value; i.e., he confounded non-durables and durables. Methodologically, this means getting the relationship between flows and stocks wrong. (ii) The marginal utility of one person does not matter much, because the market transforms a great number of diverse subjective valuations into one objective price for all. Menger fails to show how this transformation works. For the correct answer, see The Logical Interface Between Objective Macrofoundations and Subjective Valuations https://t.co/8NXaiPW0x3 (iii) The question of value does not arise outside the economic system, where labor gets a wage, and the output is sold on the market. The Value Theory presupposes a monetary economy. The marginal utility of water for some freak guy in the desert is irrelevant to the market price of water. (iv) The subjective value has ultimately to be backed up by an objective amount of money. The subjective value of water may be high, but if the agent can maximally spend his income and if his income is very small, the thirsty person cannot buy enough water and leaves the market to die in some dark corner. The survivors understand that the market is not primarily an efficient information mechanism but a quasi-Darwinian selection mechanism that makes sure, with some unintelligible Invisible-Hand trick, that the rich person survives the poor person if scarcity becomes extreme. These four methodological mistakes are sufficient to make Menger's approach scientifically worthless and all Austrian propagandists unemployed. The methodologically correct approach is summarized in table AXEC233b ⇓. Microfoundations are methodologically false; therefore, the elementary production-consumption economy is given with three macroeconomic axioms in lines 1, 2, 3. The business sector is later differentiated in lines 15, 16, 17. Under the initial analytical conditions of market-clearing, i.e., X=O, and budget-balancing, i.e., Ec=Yw, this yields the price P in line 5. For a start, the price is the dependent variable here. This is a starting condition that is lifted later. In the initial state, the price is equal to unit wage costs W/R in line 5. The workers get the whole product O. The profit Qm for the business sector as a whole is zero. Now, the condition of budget balancing is lifted, i.e., nominal demand is not determined by income. Accordingly, the two market-clearing prices depend on the respective expenditure ratios ρE1, ρE2 and unit wage costs W1/R1, W2/R2 in lines 18, 19. The measurable expenditure ratio is a proxy for the consolidated multitude of unmeasurable individual subjective values. As a result, relative prices are given in line 20. For the special case of budget balancing, i.e., ρE1=1, ρE2=1, and equal wages W1, W2, in both production lines, the relative price is equal to the inverse productivities. It is not proportional to labor time input. This result can be projected back to the original Labour Theory of Value and amounts to a refutation. It reveals the scientific incompetence of Austrian economists from Menger onward.
— AXEC (@EgmontHandtke) November 2, 2026
This blog connects to the AXEC Project which applies a superior method of economic analysis. The following comments have been posted on selected blogs as catalysts for the ongoing Paradigm Shift. The comments are brought together here for information. The full debates are directly accessible via the Blog-References. Scrap the lot and start again―that is what a Paradigm Shift is all about. Time to make economics a science.