Video summary

Is value in the eye of the beholder? Subjectivism in the theory of economic value

Main summary

Key takeaways

Educational

Main ideas, concepts, and lessons

1) The central problem: “value” has two meanings (Smith)

Adam Smith (1776) argues that “value” refers to two distinct ideas:

  • Value in use: an object’s utility for satisfying needs.
  • Value in exchange: what the object can purchase in markets (its purchasing power / market price).

This distinction sets up the water–diamond paradox:

  • Water is extremely useful yet typically cheap.
  • Diamonds are comparatively less useful yet typically expensive.

Later classical economists aim to explain prices largely through objective production costs—the objective difficulty of bringing goods to market, e.g.:

  • Water is cheap because it’s abundant → low resources/time to bring to market.
  • Diamonds are expensive because they’re hard to find → high resources/time to bring to market.

2) The marginalist “turn”: value depends on subjective marginal utility

The discussion centers on subjective theories of economic value, associated with the marginal revolution (1870s). The founders—presented as proposing independently—share themes like:

  • Economic value is in the “eye of the beholder,” not in suppliers’ objective costs.
  • Diminishing marginal utility:
    • the more of a good someone already has/consumes, the less satisfaction the next unit provides.
    • “Marginal” means the next small increment.
  • Preferences and ordering:
    • consumers prioritize goods differently; consuming essentials first lowers marginal utility for those items.
    • eventually, marginal utility for “luxuries” can exceed that for “basics,” changing consumption choices.

Therefore, for an individual at a particular time:

  • Marginal utility, not abstract “total social utility,” determines what matters economically.

In this framework:

  • Prices are determined by subjective consumer valuations of final consumption goods, not by objective costs.

The talk frames it as a contrast:

  • Classicals build value “from the ground up” (labor/material inputs).
  • Marginalists build value “from the mind out” (mind/desire/choice).

3) Market equilibrium and the pricing “correspondence”

The speaker claims (via a “modern version” in the handout) that under:

  • individuals with diminishing marginal utilities,
  • free trading, and
  • a definite quantity of each good,

then when markets clear (supply = demand), relative prices correspond to relative marginal utilities.

Implication: in the simplified equilibrium model, there is a strict correspondence between subjective preferences and market prices (at least at equilibrium).

Water–diamond paradox (marginalist resolution):

  • Diamonds are expensive not because they are objectively costly, but because their marginal utility relative to water is higher for the relevant individual at the relevant time.

4) Distribution and the political critique

The talk extends marginalism (as described) from exchange to production and then to distribution:

  • wages, interest, and rent are determined by each factor’s marginal contribution.
  • this implies everyone receives their “just desserts.”

The speaker argues this undermines the socialist labor theory of value, which claims:

  • workers create more value than they receive in wages (exploitation).

Consequently, the speaker suggests marginalism is welcomed by ruling classes and becomes dominant—marking the end of classical economics in mainstream form.

5) Marginalism vs subjectivism (a key distinction)

The speaker distinguishes:

A. Marginalism (method)

  • Uses calculus and equilibrium conditions:
    • marginal quantities are treated like derivatives (rates of change).
    • equilibrium is found by setting derivatives to zero.
  • The speaker’s claim: marginalism, in practice, reduces to solving simultaneous equations, not studying dynamics over time.

Analogy:

  • marginalism resembles statics (balance conditions), not dynamics (how balance is reached or how change unfolds).
  • It uses differential calculus, but (critically) not the integral side for motion/change.

B. Subjectivism (substantive claim)

Adds stronger claims, including:

  • economic value in all senses is determined foundationally/predominantly/solely by subjective preferences.
  • “Value is mental—part of the eye of the beholder.”

6) The speaker’s critique of subjectivism: “smuggling back” objective scarcity

The speaker identifies an internal tension:

  • If prices are entirely determined by subjective preferences, then people could collectively “decide” outcomes like:
    • airplanes are cheaper than pencils, or
    • diamonds “don’t glitter,”
  • which the speaker calls absurd because scarcity and material constraints don’t disappear.

So the speaker argues subjectivism is untenable/idealistic.

The speaker further claims that marginalists (including Menger and others quoted) end up acknowledging that exchange value depends on:

  • relationships between requirements and available quantities (i.e., supply/scarcity).

They argue marginalism “demonstrates precisely the opposite” of strict subjectivism:

  • change supply → change equilibrium prices and marginal utilities even if preferences/utility functions stay fixed.
  • thus: “the hands of the suppliers change the eyes of the beholders.”

7) “Value nealism” and the loss of substance (Jevons/Walras)

The talk characterizes neoclassical theory as turning value into relations/ratios rather than substantive quantities.

Two themes attributed in the talk:

  • Jevons: speaking of value “as a ratio” is absurd (compared to the ratio of numbers).
  • Walras: with differential-equation equilibrium, prices are determined only up to a scaling factor, so only relative prices matter.

The speaker concludes:

  • contemporary economics becomes “value nealism” (value dissolves into relational mathematics).

Additional criticisms include:

  • money is not a price but the unit prices are expressed in,
  • we buy goods with money, not “prices” directly,
  • real economies are not general equilibrium but general disequilibrium.

Main conclusion:

  • marginalism/neoclassicism may describe equilibrium snapshots but lacks a proper theory of causal dynamics—how money and value causally operate in disequilibrium.

8) Neoclassical “synthesis”: both blades of the scissors (Marshall)

The speaker describes Alfred Marshall’s reconciliation:

  • production/cost structure (objective side) and utility/marginal substitution (subjective side) both matter.

Scissors analogy:

  • scissors cut paper when either blade is used.
  • so debate about “utility vs cost” is likened to arguing about which blade cuts.

In general equilibrium, prices reflect both:

  • marginal rate of substitution (subjective),
  • marginal cost structure (objective).

Thus, the speaker claims:

  • prices are “in between” subjective and objective, not purely one or the other.

Further claim:

  • neoclassical labor-content results for reproducible commodities align with classical labor theory in certain cases.

9) Final framing: Why water is cheap and diamonds expensive?

The talk ends by contrasting competing explanations:

  • Objective side: water becomes more difficult to produce → price rises.
  • Subjective side: people decide diamonds don’t glitter → price falls.

Closing summary:

  • In the neoclassical vision, value is essentially an evolving set of equilibrium prices that clears markets under constraints and optimal behavior.
  • The speaker doubts this fully answers value as a real, timeful causal phenomenon.

Methodology / structure of the argument (as presented)

  • Step 1: Define “value” (Smith)
    • Distinguish value-in-use vs value-in-exchange.
  • Step 2: Present the water–diamond paradox (Smith)
    • Utility vs market price diverge.
  • Step 3: Present classical approach
    • Prices reflect objective difficulty/cost and abundance/scarcity in production.
  • Step 4: Present marginal revolution
    • Prices reflect subjective marginal utility from consumer preferences.
    • Use diminishing marginal utility and equilibrium trading logic.
  • Step 5: Extend marginalism (as claimed)
    • Distribution determined by marginal contributions.
  • Step 6: Distinguish marginalism vs subjectivism
    • Marginalism = analytical equilibrium method using derivatives.
    • Subjectivism = stronger thesis that value is ultimately subjective/mental.
  • Step 7: Critique subjectivism
    • Subjectivism cannot escape supply/scarcity constraints.
    • Changes in supply alter equilibrium prices/marginal utilities even with fixed preferences.
  • Step 8: Critique neoclassical “relational value”
    • Value dissolves into relative price ratios.
    • Lacks dynamic causal analysis of money/disequilibrium.
  • Step 9: Conclude with synthesis
    • Marshall-style “both blades” approach: supply and demand both matter.
    • Still deemed incomplete as a full science because of missing dynamics/causation.

Speakers / sources featured (named or clearly quoted)

Speaker

  • Ian (main presenter; repeatedly addressed as “Ian” during Q&A)

Discussed / cited thinkers and sources

  • Adam Smith (1776; Wealth of Nations; water–diamond paradox; value-in-use/value-in-exchange)
  • David Ricardo (1817; classical restrictions/production-capable goods discussion)
  • Karl Marx (mentioned via labor theory critique; also “Capital” and calculus/dynamics remarks)
  • Thomas Carlyle (quip: “teach a parrot to say supply and demand…”)
  • William Stanley Jevons (English; founder; quotes attributed)
  • Carl Menger (Austrian; founder; spelled/mentioned multiple times)
  • Léon Walras (Swiss; founder; differential-equation equilibrium)
  • Ludwig von Mises (1949 Human Action; methodological individualism and subjective value quotes)
  • Alfred Marshall (1890; Principles of Economics; scissors analogy; synthesis)
  • Thorstein Veblen (The Economic Theory of the Leisure Class, 1917; scarcity as conditions of production via social labor)

Not present / ignored

  • Böhm-Bawerk explicitly named/featured? No (ignored unless explicitly present).
  • James Mill, G.E. Moore, Keynes: not present (ignore).
  • Michelle Foucault and Judith Butler: discussed in Q&A references (e.g., Butler’s Bodies That Matter; Foucault mentioned indirectly).
  • Grim Solomons: uncertain due to subtitle errors.
  • Karl Bâhrarin / Bucharin: referenced in Q&A.
  • Larry Clark: recommended Economic Theory by Larry Clark.
  • Wikipedia: used only as a suggestion for spelling/lookup, not as a substantive theoretical source.

Q&A participants (speakers)

  • Multiple attendees speak, but they are not individually named in the subtitles, aside from:
    • a questioner about Menger spelling
    • questioners on ideology/history/law, philosophical angles, inequality, dynamic causation, money/value, and “billionaire psychology”
  • Mike (identified in Q&A as “Mike” speaking first; not the main presenter)
  • Ed (named in Q&A as “Ed”)

Other works / doctrines referenced (not necessarily authors named)

  • German historical school
  • laesio enormis (and related legal doctrines around rescinding sales and interest ceilings)
  • Usury / interest laws, financial repression, stock-market illegibility
  • General equilibrium theory and comparative statics
  • Analytical philosophy, logical positivism, formal logic, and Hegel (Science of Logic)

Note: Several names in Q&A appear uncertain due to subtitle errors; the list above includes the names explicitly legible in the subtitles.

Original video