Six alternative branches. These are subjective probabilities from the seed, not observed frequencies or investment recommendations.
Why this trend
Load-bearing assumption
US customs data continues to measure the last country of substantial transformation while value-added data measures where economic activity occurred, so bilateral deficit figures keep diverging from real dependence and no single published series reconciles them inside the horizon.
Preconditions
Not recorded.
Rerouting continues, dependence persists
Customs-measured exposure to China keeps falling while real upstream dependence barely moves. Vietnam, Taiwan and Mexico stay ahead of China on monthly bilateral deficits. Chinese FDI into Vietnam and Mexico reconstitutes the same supply chain one country over, and the value-added data that would show this arrives with a three-to-four-year lag, so boards keep being briefed on the customs number. Tariff protection persists at an effective rate in the 5-8% range on sectoral authorities.
Mechanism
Firms relocate final assembly rather than upstream production because final assembly is what determines origin. The decelerating element is the rate of customs-share decline: China's share fell from 21.9% in 2017 to 13.8% in 2024, and the remaining share is concentrated in categories with no near-term substitute. Section 301 forced-labour tariffs on 60 economies compress the arbitrage but do not close it, because a 10-12.5% differential is smaller than the relocation cost for most upstream stages.
Preconditions, early indicators and assumptions
- Calibration Basis
base_rate
- Preconditions
- Effective tariff rate stays between roughly 5% and 8%
- Rules-of-origin tightening under USMCA is proposed but not finalised
- Value-added trade data continues to lag by three or more years
- Early Indicators
- Indicator
The US monthly goods deficit with Vietnam exceeding the deficit with China in at least five of the six months January to June 2027
- Source
S-09-04
- Threshold
five of six months
- Direction
occurs
- Would Be Visible By
2027-09
- Resolves
Confirms base
- Indicator
Penn Wharton effective tariff rate remaining between 5.0% and 8.0%
- Source
S-09-12
- Threshold
5.0-8.0%
- Direction
within band
- Would Be Visible By
2027-12
- Resolves
Confirms the protection leg; below 4% moves mass to failure
- Indicator
ISM Prices staying at or above 60.0% in at least five of the six reports for January to June 2027
- Source
S-09-07
- Threshold
60.0%
- Direction
above
- Would Be Visible By
2027-07
- Resolves
Confirms cost pass-through continuing without a volume response
- Assumptions
- Text
Relocation of final assembly continues to outpace relocation of upstream production, so customs and value-added measures keep diverging
- Confidence
medium
- Load Bearing
true
- Basis
Rhodium 2025-05-07: China's share of US imports fell 8.1 points while its share of global manufacturing value added rose 3.3 points and substitute economies lost 0.1 points
- If Wrong
Either genuine relocation is deeper than measured, moving mass to upside, or enforcement closes the gap, moving mass to downside
- Text
The Section 301 forced-labour rates are too small to change upstream sourcing
- Confidence
medium
- Load Bearing
false
- Basis
Rates of 10% or 12.5% against relocation costs measured in years of qualification
- If Wrong
Rerouting slows faster than modelled
- Affected Industries
- 09
- 12
- 03
- 10
- 23
- Precedence Note
Distinguished from downside by whether enforcement changes the flow, not by whether it is announced. A determination without a measurable flow change stays in base.
- Would Change Our Mind
A value-added dataset published with a lag of under two years showing substitute economies gaining manufacturing value-added share.
- What Businesses Should Do
Map n-tier suppliers, not first-tier country of origin. A supplier that has moved out of China on a customs basis may have identical upstream dependence through a Vietnamese or Mexican tier-2, which is a Section 301 compliance exposure as well as a resilience illusion.
Genuine relocation deepens
Sustained protection plus federal price floors finally trigger real upstream capacity in the connector economies and in the US. Factory construction excluding electronics re-accelerates, core capital goods orders exceed 5% annual growth, and value-added data eventually confirms that substitute economies are gaining rather than pass-through processing. The constraint that releases is capital commitment: firms stop treating the tariff regime as temporary.
Mechanism
Firms relocate upstream stages once they judge the sectoral tariff architecture likely to outlast an administration. The named constraint is policy persistence, released by two things the corpus already records: Section 232 surviving the IEEPA reversal untouched, and Section 122 expiring exactly on its 150-day statutory clock, which demonstrated that the statutory basis of a tariff predicts its durability.
Preconditions, early indicators and assumptions
- Calibration Basis
analogue
- Preconditions
- Effective tariff rate stays at or above 6% for two consecutive years
- Census C30 manufacturing construction excluding electronics turns positive by more than 10% year over year for two consecutive quarters
- Core capital goods orders exceed 5% annual growth
- Early Indicators
- Indicator
Census C30 private manufacturing construction excluding computer and electronic turning positive by more than 10% year over year for two consecutive quarters
- Source
S-09-01
- Threshold
10% y/y for two quarters
- Direction
above
- Would Be Visible By
2028-03
- Resolves
Confirms the capacity-creation leg
- Indicator
Census M3 core capital goods orders exceeding 5% annual growth
- Source
S-09-02
- Threshold
5% annual growth
- Direction
above
- Would Be Visible By
2027-12
- Resolves
Confirms the equipment leg; 0.2% monthly growth as of July 2026 is a long way from this
- Assumptions
- Text
Firms commit upstream capital on a tariff regime that can be changed by proclamation
- Confidence
low
- Load Bearing
true
- Basis
T-09-01 records Section 301 determinations as curable and Section 232 as modifiable by proclamation; the IEEPA regime disappeared in a single day
- If Wrong
Upside collapses into base and the capacity is never built
- Text
Capacity-creation responses follow capacity-utilisation responses with a lag
- Confidence
low
- Load Bearing
false
- Basis
T-09-08: steel output responded within months where idle capacity existed; complex assemblies requiring new plant did not
- If Wrong
The two responses are unrelated and the steel precedent says nothing about assemblies
- Affected Industries
- 09
- 03
- 18
- 05
- Precedence Note
Requires put-in-place construction and orders, not announcements. Announced reshoring at any volume leaves the outcome in base.
- Would Change Our Mind
A third consecutive year of falling private manufacturing construction excluding electronics.
- What Businesses Should Do
Underwrite equipment and construction demand off Census C30 and M3, not off announcement trackers, which the corpus records have consistently and substantially exceeded what appears in BLS or Census data for a decade.
Enforcement raises the cost of rerouting
Transshipment enforcement and rules-of-origin tightening make paper relocation expensive without making real relocation cheap. Landed costs rise across the connector economies, input-price inflation compounds on top of a 4.5% nonfuel import price increase, and the volume response stays absent: industrial production keeps growing around 1% with capacity utilisation stuck near 76%. Margins compress rather than production reallocating. The thesis still holds - trade is being redirected - it just delivers cost rather than resilience.
Mechanism
The deteriorating parameter is landed cost per unit. It shows up first in BLS nonfuel import prices, then in ISM Prices, then in NAM's expected input-cost growth, and finally in manufacturer margin. The transmission channel is USTR rules-of-origin tightening under USMCA, with proposals to raise automotive North American content from 75% to 82% including 50% US-specific.
Preconditions, early indicators and assumptions
- Calibration Basis
base_rate
- Preconditions
- Rules-of-origin proposals advance at a USMCA annual review
- Section 301 forced-labour determinations are enforced rather than cured
- No offsetting exchange-rate move
- Early Indicators
- Indicator
ISM Manufacturing PMI below 50 for three consecutive months while ISM Prices stays above 65
- Source
S-09-07
- Threshold
PMI below 50 and Prices above 65 for three months
- Direction
occurs
- Would Be Visible By
2028-06
- Resolves
The stagflationary signature confirms downside
- Indicator
BLS nonfuel import prices rising above 5% year over year for two consecutive months
- Source
S-09-05
- Threshold
5% y/y
- Direction
above
- Would Be Visible By
2027-06
- Resolves
Confirms the cost leg
- Assumptions
- Text
Enforcement raises cost without producing a volume reallocation
- Confidence
medium
- Load Bearing
true
- Basis
T-09-03: nonfuel import prices +4.5% y/y and ISM Prices at 71.1% against industrial production +1.1% y/y and capacity utilisation at 76.0%
- If Wrong
Mass moves to upside, because reallocation is exactly what upside requires
- Text
Rules-of-origin tightening is finalised rather than used as a negotiating position
- Confidence
low
- Load Bearing
false
- Basis
Nothing was changed at the July 2026 USMCA review itself
- If Wrong
The cost increase does not arrive and the branch resolves to base
- Affected Industries
- 09
- 10
- 12
- 23
- Precedence Note
Stopper: input chokepoint and capital cost. Distinguished from failure by whether the tariff architecture survives; downside is expensive protection, failure is no protection.
- Would Change Our Mind
Capacity utilisation rising above 80% while import prices keep rising, which would mean cost is being passed through into volume rather than into margin.
- What Businesses Should Do
Model pricing power, not capacity, as the binding variable through 2027. Treat the 2026 refund flow of roughly USD 107bn as non-recurring; the corpus records that extrapolating 2026 margin expansion into 2027 is an error.
Rules of origin rewrite the map
A different mechanism wins: origin stops being determined by last substantial transformation and starts being determined by cumulative content and traceability. Forced-labour enforcement becomes the instrument, so duty rate becomes a function of documented upstream provenance rather than of shipping route. Supply-chain mapping converts from a reputational spend into a landed-cost input, and a traceability compliance market forms around it. At least two forcing parties exist: USTR through Section 301, and the EU through its own de minimis and customs reform.
Mechanism
The Section 301 action effective 2026-07-24 hangs a broad tariff on a labour-practice finding for the first time. Because a determination is curable by the target government and litigable by importers, both have an incentive to produce provenance evidence. The incumbent asset that loses value is the transshipment route and the customs-engineering practice built around it; the winner is whoever can document n-tier provenance cheaply.
Preconditions, early indicators and assumptions
- Calibration Basis
analogue
- Preconditions
- USTR finalises rules-of-origin tightening at a USMCA annual review
- At least one target government formally cures a forced-labour determination
- Traceability requirements are enforced at entry rather than in audit
- Early Indicators
- Indicator
A finalised USMCA rules-of-origin change raising automotive North American content above 75%
- Source
S-09-13
- Threshold
finalised change
- Direction
occurs
- Would Be Visible By
2028-12
- Resolves
Confirms disruption
- Indicator
USTR publishing a determination that a named economy has cured its forced-labour finding, with a corresponding tariff reduction
- Source
S-09-13
- Threshold
one cure with rate change
- Direction
occurs
- Would Be Visible By
2028-06
- Resolves
Confirms the mechanism is curable in practice and not only in theory
- Assumptions
- Text
Provenance can be documented at n-tier depth at a cost below the duty differential
- Confidence
low
- Load Bearing
true
- Basis
No published evidence in the corpus on the cost of n-tier traceability at scale
- If Wrong
Importers pay the duty instead and the branch collapses into downside
- Text
USTR treats the forced-labour determination as a durable instrument rather than a one-time replacement for Section 122
- Confidence
medium
- Load Bearing
false
- Basis
Section 301 was adopted the same day Section 122 expired, 2026-07-24, which is consistent with either reading
- If Wrong
The instrument is abandoned at the next legal challenge
- Affected Industries
- 09
- 12
- 23
- 10
- 02
- Precedence Note
Requires a finalised origin or cure instrument. Proposals and determinations alone stay in base.
- Would Change Our Mind
A court vacating the Section 301 forced-labour determinations.
- What Businesses Should Do
Start n-tier mapping now on landed-cost grounds rather than ESG grounds; the buying trigger has changed and the data requirement is the same.
Forced-labour determinations are cured or extended
The Section 301 instrument is exercised in one direction or the other. Either target governments cure their determinations and rates come down for a subset of the 60 economies, unwinding part of the protection, or USTR extends the determination to further economies and products and the rates go up. The direction is genuinely two-sided, and either way the map of which country is cheap to import from changes without any trade flow changing first.
Mechanism
The instrument is a USTR determination under Section 301, published in the Federal Register, with a four-stage position from proposed to enforced. Unlike a Section 232 action, it names a curable condition, which gives target governments an explicit path and importers a lobbying route they did not have under IEEPA. The issuing body is USTR and the stage change to watch is a modification notice.
Preconditions, early indicators and assumptions
- Calibration Basis
base_rate
- Preconditions
- A target government takes formal action on forced-labour enforcement
- USTR publishes a modification rather than only a review
- No court vacating the determinations first
- Early Indicators
- Indicator
A Federal Register notice modifying the Section 301 forced-labour rates for any of the 60 named economies
- Source
S-09-13
- Threshold
one modification notice
- Direction
occurs
- Would Be Visible By
2027-12
- Resolves
Confirms regulatory in whichever direction the modification runs
- Indicator
Penn Wharton effective tariff rate moving outside the 5.0-8.0% band in either direction
- Source
S-09-12
- Threshold
below 5.0% or above 8.0%
- Direction
outside band
- Would Be Visible By
2027-12
- Resolves
Quantifies the direction of the regulatory move
- Assumptions
- Text
Section 301 determinations are severable by economy, so one cure does not unwind the whole action
- Confidence
medium
- Load Bearing
true
- Basis
The action sets differentiated rates of 10% and 12.5% across 60 economies with separate classifications
- If Wrong
A single successful cure or challenge unwinds the instrument and mass moves to failure
- Text
USTR prefers modification to abandonment when challenged
- Confidence
medium
- Load Bearing
false
- Basis
The administration replaced IEEPA with Section 122 within hours and Section 122 with Section 301 on the day it expired
- If Wrong
The instrument is abandoned rather than modified
- Affected Industries
- 09
- 12
- 06
- 10
- Precedence Note
Regulatory outranks base when a modification notice issues, even if trade flows look base-like. Name the Federal Register document.
- Would Change Our Mind
Two consecutive quarters with no USTR action on the forced-labour determinations and no litigation filed.
- What Businesses Should Do
Treat duty rate as a variable that a foreign government can change, which is new. Build the lobbying and evidentiary path into trade-compliance planning rather than treating rates as exogenous.
The tariff architecture is unwound
The thesis is wrong: protection is not durable. Refund liabilities compound beyond the roughly USD 107bn already certified, household cost estimates and visible factory-construction decline erode political support, and tariffs are negotiated down across the board. Federal critical-minerals equity positions are sold at a loss and the Western build-out repeats the Molycorp outcome. Manufacturing returns to a pure cost-competitiveness footing and the connector economies lose their arbitrage along with China.
Mechanism
The instrument that breaks is the political tolerance for the cost, not the legal basis. Who is left holding the asset: firms that built or contracted capacity on tariff-protected economics, and the federal balance sheet, which now holds equity in MP Materials, Lithium Americas, USA Rare Earth, Korea Zinc and Trilogy Metals. The historical analogue is dated and specific: China restricted rare-earth exports to Japan in 2010, prices spiked roughly tenfold, Western projects were announced en masse, and Molycorp went bankrupt in 2015 once Chinese supply returned. The USD 110/kg NdPr price floor at MP exists precisely because that sequence is expected to repeat.
Preconditions, early indicators and assumptions
- Calibration Basis
analogue
- Preconditions
- Effective tariff rate falling below 4%
- At least one federal critical-minerals equity position divested or written down
- No replacement instrument
- Early Indicators
- Indicator
Penn Wharton effective tariff rate falling below 4.0%
- Source
S-09-12
- Threshold
4.0%
- Direction
below
- Would Be Visible By
2028-12
- Resolves
Confirms failure
- Indicator
A federal critical-minerals equity position divested or written down, disclosed in an SEC filing or agency release
- Source
S-09-22
- Threshold
one divestment or write-down
- Direction
occurs
- Would Be Visible By
2029-12
- Resolves
Confirms the industrial-policy leg; combined with the first indicator this is the failure signature
- Assumptions
- Text
Political support for protection is cost-elastic at the household level
- Confidence
low
- Load Bearing
true
- Basis
Tax Foundation estimates roughly USD 820 per US household in 2026, down from USD 1,000 in 2025 because the struck-down tariffs were only partly replaced
- If Wrong
Protection persists regardless of cost and mass returns to base and downside
- Text
Section 232 actions can be unwound as fast as they were imposed
- Confidence
low
- Load Bearing
false
- Basis
Section 232 requires a Commerce investigation to impose; removal by proclamation is procedurally faster than imposition
- If Wrong
Unwinding takes years and the branch stretches beyond the horizon
- Affected Industries
- 09
- 12
- 06
- 10
- 03
- Precedence Note
Failure outranks all other branches on occurrence. Requires both legs - the effective rate below 4% and a federal position divested or written down.
- Would Change Our Mind
A congressional statute codifying sectoral tariff authorities, which would make unwinding a legislative rather than an executive act.
- What Businesses Should Do
Anyone underwriting domestic capacity on tariff-protected economics should ask what the project is worth at a 2% effective tariff rate, and should treat the presence or absence of a federal price floor as the dominant variable rather than as a subsidy detail.
Additional scenario notes
- Review Required
true
- Review Reason
Trade law and enforcement. Section 301 forced-labour determinations carry legal exposure for importers, and the corpus records that effective and applied tariff rates are routinely conflated in public reporting.
- Probabilities Sum
1
- What Must Be True To Grow
- Capability: connector economies can perform the relocated stages - satisfied for final assembly, unproven for upstream
- Economics: relocation pays at a 3.50-3.75% policy rate against a 10-12.5% duty differential - marginal, which is why final assembly moves and upstream does not
- Supply: critical inputs obtainable - failing in specific elements; US yttrium imports from China fell 95% and Japan received zero covered rare-earth exports in July 2026
- Demand: importer pull rather than policy push - satisfied; every US importer of record is affected involuntarily
- Permission: origin qualification under USMCA and Section 301 - contested and being tightened
- Capital: financing for new upstream capacity - the binding gate, and the reason factory construction is down 21.7% year over year
- What Could Stop It
- Regulatory reversal: the effective tariff rate falling below 4%, which is the corpus's own failure-scenario threshold
- Input chokepoint: Chinese critical-minerals licensing, which is an availability shock with a political control surface rather than a price shock
- Measurement revision: customs data and value-added data point in opposite directions, and the corpus calls this the most consequential measurement divergence in the sector
- Capital cost: a capital-intensive sector facing a hawkish-lean Fed, with factory construction already down 21.7% year over year
- Substitution: data-centre construction bidding away the electrical contractors, switchgear and skilled trades that industrial construction needs
- Uncertain Assumptions
- That final-assembly relocation continues to outpace upstream relocation - load-bearing for the base case, confidence medium
- That value-added trade data continues to lag by three to four years, so the divergence stays invisible in real time - high confidence and uncomfortable
- That Hormuz stays open and the June 2026 ceasefire holds - genuinely indeterminate, and the corpus records the transit-volume evidence as its weakest
- That the 2026 US trade data is comparable to 2025 - it is not, because the 2025 base is distorted by import front-running and gold flows, and the corpus flags this explicitly
- Authored
2026-09-15