The Systems We Forgot to Price

A bilateral price is complete for A and B and incomplete for C

The paper defines price as a bilateral record: it captures what buyer and seller agree to exchange, while system welfare remains outside the transaction ledger.

• A and B optimize over private payoffs; C is the system that hosts the exchange.
• The price can clear the trade while addiction costs, emissions, congestion, health costs, or other system losses fall elsewhere.
• The problem is a welfare accounting problem, not a claim that the bilateral price was miscalculated.

A two-payoff game cannot represent a three-welfare outcome

The MST states that in any bilateral economic game G between A and B, the system-welfare dimension W is structurally excluded from the payoff space.

• G contains payoff pairs: (π , π ). It has no coordinate for W or C.
• No amount of information, transparency, or good faith makes a 2x2 payoff matrix represent C.
• A deal can be Pareto-optimal inside G and still produce C=0, A=1, B=1.

The canonical failure is C=0 while A=1 and B=1

The Hollow Win is the paper's signature case: both transacting parties gain while the system they depend on degrades.

• Opioid example: company earns revenue and patient receives relief, while addiction treatment, overdose, ER, family, and criminal justice costs sit outside the price.
• Platform example: platform earns fees and rider gets convenience, while drivers, traffic, transit funding, emissions, and climate costs are excluded.
• The parties feel the gain; the loss is diffuse, delayed, and borne by others.

Adding C turns a four-cell bilateral frame into an eight-cell welfare frame

The taxonomy uses three binary dimensions: C for system, A for party A, and B for party B. It is a completeness check, not a moral ranking.

• Win, Win, Win is (1,1,1); Hollow Win is (0,1,1).
• Sustainable Win-Lose and Sustainable Lose-Win preserve C while one party loses.
• Corrosive Win-Lose, Corrosive Lose-Win, Stable Misery, and Misery name the other system-party combinations.

β_W prices the missing welfare cost against industry revenue

SAPM defines β_W as system welfare cost divided by annual industry revenue. The paper treats revenue as the iron-law denominator because it is the gross private flow the price system records.

• Never use profit, market cap, assets, or enterprise value as the denominator.
• Using profit inflates β_W by 5-20x in low-margin industries and adds accounting discretion.
• β_W reports dollars of system welfare cost per dollar of industry revenue.

The SAPM ledger ranges from 0.00 to 34.63 across 61 domains

The paper reports β_W estimates across the SAPM corpus, with large variation by domain rather than a single claim that all industries impose the same welfare cost.

• Algorithmic pricing: β_W = 0.00.
• Payday lending: β_W = 34.63.
• Firearms: β_W = 21.98; tobacco: β_W = 26.0; ultra-processed food: β_W = 14.3.

A smaller β_W still means the price omits system cost

The low end of the positive β_W range matters because it shows the framework distinguishes relative damage rather than treating every market failure as identical.

• Gig economy platforms: β_W = 0.76.
• Oil and gas: β_W = 1.64.
• The price system records revenue in both cases; β_W adds the omitted welfare cost.

The paper estimates $73.8T per year in omitted system welfare cost

Summed across the 61 domains, the annual system welfare cost is approximately $73.8T. The paper calls this the Reform Dividend.

• The number measures the gap between current institutional games and transformed games where system welfare is priced.
• The paper describes it as about 85% of global GDP.
• It is the size of the systematic error created when policy optimizes on an incomplete account.

Field 17 forces the decision record to name system welfare impact

Decision Accounting is a 17-field record written when a welfare-affecting decision is made. Fields 1-15 record standard decision facts; Field 17 records the broader system effect.

• Fields 1-15 include who, what, when, where, why, evidence, authority, training, review, stakeholders, consequences, constraints, uncertainty, communication, and prediction.
• Field 17 is SYSTEM WELFARE: effect on the broader system beyond direct parties.
• Field 17 cannot be derived from the bilateral payoff space after the fact; it must be estimated, scored, and recorded at decision time.

The welfare ledger complements market prices instead of replacing them

The paper rejects both anti-market framing and central planning. Its remedy is institutional record-keeping and welfare cost accounting layered onto the same firms, regulators, courts, and standard setters that already use prices.

• Market prices coordinate bilateral exchange; the welfare ledger records C.
• Policy instruments include shadow prices, regulatory accounting standards, procurement rules, liability frameworks, and decision accounting mandates.
• The claim is modest: imperfect but directionally correct welfare accounting beats precise accounting of the wrong object.

A complete decision record must pass the Five-Minute Test

The minimum standard is reconstructability: a stranger should be able to determine what was decided, by whom, why, under what authority, and what would trigger reconsideration.

• A record missing SYSTEM WELFARE is incomplete under the paper's framework.
• A regulatory regime that does not require Field 17 cannot see system welfare loss.
• Completeness means recording what happens to C, not replacing the A/B price.