The Unenrolled — Summary

The audit prices every spread it reaches. These are the households it never reaches: unbanked, unadvised, undocumented, or simply unenrolled, the ledgers no instrument holds. They still pay the old prices, the reverted teaser, the overdraft sequence, the payday rollover, and those prices hold steady while the enrolled economy’s equivalents go to zero. The spread between an optimized and an unoptimized ledger widens at the pace of enrollment, mechanically, with no actor required to widen it.

The spread fits none of the series’ classes, and the misfit is the finding. Exploiting the unenrolled requires no information asymmetry: the prices are posted, and a posted price with no reachable alternative extracts as efficiently as a concealed one. Enrollment, not information, was the gate. And nobody is arbitraging the spread, because closing it pays no one; the correction’s cost lives with the corrector and the benefit with a customer who cannot pay for it. The population is the tier below the invisible-tiers essay’s six, the one its universality premise cannot see, inequality as absence of service rather than stratified service.

For the allocator, the uncomfortable clause: every melting franchise in the arc has one refuge, the unenrolled book, where pre-audit margins survive on absence with a captive counterparty. And the exclusion compounds: old prices thin the ledger, raising next year’s enrollment friction, so exclusion from the instrument is self-financing on the excluded side. Decision rule: any margin that survived the audit by selecting for the unenrolled carries a regulatory and moral half-life the sheet must show. The audit closes every spread it reads, and the not-reading is now the spread.