James Young Profile picture
Oct 15, 2025 8 tweets 2 min read Read on X
The GDP-FX Triangle as Evidence that Financial Assets Function as Effective Money

"This implies that currencies are equity-linked claims, and therefore that financial assets function as money at the macroeconomic level." Image
Theoretical Framing

This proportionality arises because equity and debt jointly define the monetary value of domestic claims: Image
Empirical Results Image
Interpretation: The Balance-Sheet Mechanism of Currency Value

Hence, both internal and external money values are determined by asset stocks, not by base money. Image
Policy and Theoretical Implications Image
The GDP-FX triangle provides external, cross-country confirmation that financial assets function as effective money.

Domestically, credit expansion (ΔDebt) generates nominal GDP; externally, asset valuation (ΔEquity) determines the exchange value of that nominal income.
Hence, both the quantity and price of money are balance-sheet outcomes.Image
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More from @JamesYo43532848

Feb 9
“NK models require fungible capital to avoid balance sheets — "

Non-fungible capital isn’t a hypothesis that needs testing — it’s the real-world condition.
Fungible capital is the modelling assumption, and once you drop it, balance sheets become unavoidable...

.. and the NK equilibrium story disappears.Image
Once capital is non-fungible, such exclusion is no longer valid, and New Keynesian models lose closure without explicit balance-sheet dynamics. Image
When demand shifts or prices change, firms can’t just move their capital to a better use. They’re left with assets that may no longer earn enough revenue — but the debts used to build those assets don’t disappear. Image
Read 20 tweets
Jan 24
From Credit Creation to Claim Enforcement: Debt Service, Labour Share, and Balance-Sheet Constraints

"Macroeconomic models that omit leverage and debt service as state variables are therefore empirically incomplete for the purposes of analysing modern inflation and distribution dynamics in high-debt economies."Image
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Read 32 tweets
Jan 23
Services Inflation Dynamics, Housing Pass-Through, and the Misinterpretation of Wage Inflation

"In sum, services inflation in the United States is best understood as a housing-anchored, lag-driven process in which wages play an adaptive rather than causal role." Image
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Read 71 tweets
Jan 14
Solving Tarullo’s Inflation Puzzle:

A Balance-Sheet Theory of Inflation Control

"Solving Tarullo’s inflation puzzle requires shifting the theoretical object of inflation from slack and beliefs to balance-sheet consistency." Image
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Read 21 tweets
Jan 9
Balance-Sheet Constraints and Macro Dynamics: Evidence from the United States

A Proof-by-Triangulation from Profits, Housing, and Asset Prices Image
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Read 20 tweets
Dec 20, 2025
House Prices, Rents, and Wage Adjustment: Evidence from the U.S. Services Inflation Pipeline Image
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Read 22 tweets

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