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."
Theoretical Framing
This proportionality arises because equity and debt jointly define the monetary value of domestic claims:
Empirical Results
Interpretation: The Balance-Sheet Mechanism of Currency Value
Hence, both internal and external money values are determined by asset stocks, not by base money.
Policy and Theoretical Implications
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.
“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.
Once capital is non-fungible, such exclusion is no longer valid, and New Keynesian models lose closure without explicit balance-sheet dynamics.
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.
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."
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."