Stagflation is the simultaneous occurrence of economic recession and inflation; its 1970s prototype was jointly triggered by two oil crises (1973/1979) and the collapse of the Bretton Woods system. This framework identifies four triggering conditions that had simultaneously materialized by mid-2018 (dollar circulation cooling / global trade deceleration / supply-chain fractures / monetary velocity reversal), and uses the metaphor of a “stone rolling down the hill” to clarify why monetary velocity reversal is the core mechanism through which inflation becomes visible.
The Framework As It Stands
This section is compiled from research drafts: the original framework’s structure, terminology, and key formulations are preserved, including editorial bridging and external fact annotations; diagrams are drawn by the compiler following the original text’s structure.
1970s Stagflation Historical Comparison
Three structural sources of the 1970s stagflation: ① 1971 collapse of the dollar gold standard (Nixon closes the “gold window”); ② 1973 First Oil Crisis + 1979 Second Oil Crisis; ③ U.S. CPI peaked at 13.5% in 1980, ultimately suppressed by Volcker’s high-interest-rate policy. Diagnostic criteria for stagflation: core PCE >3% sustained for 6+ months + rising unemployment + GDP growth <2% + central bank caught in a dilemma.
Four Triggering Conditions (Simultaneously Materialized by Mid-2018)
The framework made a non-consensus judgment in mid-2018: the following four conditions had been simultaneously activated.
| Triggering Condition | Event | Time Node |
|---|---|---|
| ① Dollar circulation cooling / dollar shortage | The Dollar Circulation System reversal first occurred 2014-07; 2018-04 EM crisis | 2014–2018 |
| ② Global trade deceleration | International trade freight volume losing momentum from 2017-Q4 (WTO / CPB monthly data) | 2017-Q4 |
| ③ Trade war + supply-chain fractures | U.S.-China tariff war + The Dollar Crisis of Emerging-Market Currencies chain reaction | 2018 |
| ④ Monetary velocity reversal | U.S. M2 Velocity troughs at 1.43 in 2017-Q2, then rises with volatility | 2017-Q2 |
Historical pattern: four significant trade contractions since 2000 have each presaged economic recession — 2001 IT bubble, 2008 financial crisis, 2015 dollar circulation reversal (EM crisis + China FX reform), 2018 the current round.
”The Stone Rolling Down the Hill”: The Monetary Velocity Reversal Mechanism
The framework’s core metaphor:
The past 10 years (2008–2018): money supply multiplied 4–5 times + flowed into financial markets/real estate → prices unmoved (“money stuck on the mountain”).
After the U.S. 10Y Treasury yield bottomed at 1.63% on 2016-07 (a 200-year bottom): asset price pressure → capital withdraws from financial markets/real estate → flows into the real economy (“rolls down the hill”) → money supply ×4–5 shocks real-economy prices → inflation becomes visible.
The framework stresses: this is not ordinary inflation, but structural inflation produced by a 4–5-fold monetary expansion superimposed on a velocity reversal — it is structural inflation, not cyclical inflation.
The Fragility of Globalization’s Fine-Grained Division of Labor: The Brazil Case
Globalization pursues just-in-time (zero inventory) → system has no redundancy → small disturbances can be amplified through positive feedback to a destructive degree.
The 2018 Brazil case chain: Brazil market-prices diesel linked to oil and the dollar from 2017-07 → 2018-04 dollar appreciation + Brazilian real depreciation → Brazil local-currency diesel price +50% → truck drivers’ strike for 10 days → soybean transport paralyzed → agricultural prices +28% → further inflation. A single policy decision triggered a complete inflation chain. The Supply-Chain Chip War is the contemporary manifestation of this systemic fragility in the technology sector.
The Stagflation Dual Paths (Mutually Reinforcing)
- Path 1: Monetary velocity reversal → inflation becomes visible → central bank raises rates → highly indebted entities blow up → economic recession
- Path 2: Trade war / supply-chain fractures → productivity falls → manufactured-goods prices rise → inflation → central bank raises rates → recession
The two paths are independent but mutually reinforcing, constituting the inevitable stagflation pathway.
Empirical Anchor: China-U.S. Surplus Hits a New High Against the Odds
After the August 2018 U.S.-China tariff war broke out, China’s trade surplus with the U.S. paradoxically hit a new historical high of $31.1 billion, for two reasons: ① U.S. market demand for Chinese goods is inelastic (cannot be replaced in the short term); ② China deliberately allowed the renminbi to depreciate (from 6.3 to 6.9+ beginning in 2018-05) to offset the tariff effect. Global trade rebalancing is far more difficult than markets expected.
The framework’s deeper judgment: the U.S. trade deficit does not mean China is taking advantage; rather it is by design of dollar hegemony — the U.S. must maintain a deficit to export dollars to sustain its settlement-currency status, collect global seigniorage, and uphold its military/energy dominance. The true purpose of the trade war is therefore not to eliminate the deficit.
flowchart TD A["Four Triggering Conditions Appear Simultaneously<br/>Stagflation's Inevitable Path"] --> B["① Dollar Circulation Cools<br/>2014-07 Reversal"] A --> C["② Global Trade Slowdown<br/>2017-Q4 Deceleration"] A --> D["③ Trade War + Supply-Chain Fractures<br/>U.S.-China Tariff War"] A --> E["④ Monetary Velocity Reversal<br/>2017-Q2 Trough of 1.43"] E --> F["The 'Stone Rolling Down the Hill' Metaphor<br/>Money Supply ×4–5 + Velocity Reversal<br/>Money Flows from Financial Markets → Real Economy"] F --> G["Path 1: Inflation Returns<br/>Central Bank Hikes → Highly Indebted Entities Blow Up"] D --> H["Fragility of Globalized Fine-Grained Division of Labor<br/>Just-in-Time, No Redundancy"] H --> I["Brazil Truck Strike: 10 Days<br/>Diesel +50% → Agricultural Prices +28%<br/>Minor Disruption → System Paralysis"] H --> J["Path 2: Manufactured-Goods Prices Rise<br/>Productivity Falls → Inflation"] G --> K["Stagflation Dual Paths<br/>Path 1 + Path 2 Mutually Reinforcing"] J --> K K --> L["Globalization Collapse: False Spring Followed by Late Frost<br/>Analogy: 1930s Great Depression → World War II"] A --> N["Historical Pattern: Trade Contraction = Recession Precursor<br/>Four Confirmations: 2001/2008/2015/2018"]
Compiler’s Perspective
Coordinates: Category = Monetary System and Circulation / axis_h = Shu / axis_v = Why It Is So
Access Layer
The “stone rolling down the hill” metaphor clarifies one specific operational misconception: when prices remain stable during a period of monetary easing, it does not mean “inflation has been controlled”; it means inflationary pressure has been stored inside financial asset prices. Decision-makers who use stable CPI as a “continue easing” signal are reading an already-distorted dashboard — they are ignoring the money supply ×4–5 spring that has been compressed into asset prices. The 2017-Q2 M2 Velocity trough of 1.43 is a signal that the spring is beginning to uncoil, not a green light to continue easing. This set of judgments was non-consensus at mid-2018, in direct opposition to the mainstream “inflation is mild and controllable” narrative.
Exclusive Incremental Insight
The framework’s uniquely illustrative counter-example logic: the August 2018 China-U.S. surplus paradoxically hitting a new historical high of $31.1 billion after the tariff war broke out proves that the short-term transmission chain of a trade war is “local-currency depreciation offsetting tariffs > import substitution effect” — the renminbi’s depreciation from 6.3 to 6.9+ was an active policy, not market panic. This breaks the intuition that “a tariff war linearly reduces the surplus,” and shows that in stagflation Path 2 (supply-chain fractures → manufactured-goods price increases), the price-pushing effect of tariffs arrives before the volume-compressing effect on trade flows. Those holding the prediction of “trade war is deflationary” will systematically trade in the wrong direction here.
See Also
- The Dollar Circulation System
- The Dollar Crisis of Emerging-Market Currencies
- The Supply-Chain Chip War
- The Structure of China’s Total Social Financing
Sources
- Compiled draft z-0042 · collected 2026-07
- FRED, M2 Velocity (M2V), fred.stlouisfed.org (historical quarterly data)
- CPB World Trade Monitor, cpb.nl (monthly global trade volume data)
- 2018 Brazil truck drivers’ strike: Reuters / BBC public reporting (2018-05)