
Stephen Miran's research paper argues for money supply focus at the Fed. Stablecoin growth could factor into rate decisions, reshaping crypto market dynamics.
Stephen Miran, the former Federal Reserve Governor who served from September 2025 to January 2026, has co-authored a research paper arguing the Fed should pay more attention to money supply data. The paper, titled “A return to monetarism?” and published in July 2026, was written alongside economists Peter Ireland and Nouriel Roubini.
The paper advocates for monetary aggregates like M2 and Divisia measures to play a “significant role” in policy decisions. It stops short of calling for full money-supply targeting, the approach Paul Volcker briefly tried in the early 1980s. The authors argue that monetary aggregates had already signaled excessive stimulus in the post-pandemic era, when the Fed kept rates near zero and M2 exploded. Had policymakers watched those signals, they might have tightened sooner and avoided the worst of the inflation surge.
Using updated P-star models that link money supply to long-run price levels, the authors conclude that current monetary policy appears neutrally aligned with inflation forecasts.
Kevin Warsh, the new Fed Chairman, has expressed support for monetarist principles in policy discussions. A sitting chair sympathetic to an idea, combined with a well-connected former governor publishing research backing it, raises the probability that the idea influences actual rate decisions.
Miran’s tenure at the Fed ran from September 2025 to January 2026. The research paper reads less like an academic exercise and more like a policy memo with a wider audience.
In a November 2025 speech, Miran estimated that stablecoins could create a multitrillion-dollar boost for dollar-denominated assets and potentially lower interest rates. The logic is straightforward. Stablecoins like USDT and USDC are primarily backed by U.S. Treasuries and cash equivalents. As the stablecoin market grows, so does structural demand for government debt.
If the Fed starts paying closer attention to monetary aggregates, stablecoins become hard to ignore. They represent a growing pool of dollar-like instruments that exist partially outside the traditional banking system. They still affect the broader money supply picture.
Miran’s paper does not mention stablecoins directly. The framework it proposes would force the Fed to account for them. That alone shifts the conversation from whether stablecoins matter for monetary policy to how much they matter.
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