Volume or maturity? Disentangling the macro-financial effects of Treasury issuance
In this paper, Huixin Bi, Maxime Phillot, and Sarah Zubairy ask whether the macro-financial effects of Treasury issuance depend not just on the total amount of debt issued but also on its maturity structure. Specifically, the authors examine the distinct channels through which changes in debt volume versus changes in debt maturity composition propagate through financial markets and the real economy.
They use high-frequency changes in 2-, 5-, 10-, and 30-year Treasury futures prices around 597 Treasury auction announcements (Quarterly Refunding Statements and standalone announcements) from October 1998 to February 2025. Using a factor model, they decompose these surprises into two orthogonal shocks: a debt-volume shock (a parallel shift across all maturities) and a maturity-adjustment shock (a slope shift favoring long- versus short-term issuance). They interpret these shocks through a preferred-habitat term-structure model with risk-averse arbitrageurs embedded in a New Keynesian framework, then estimate their effects using daily and monthly local projections.
Findings
- Debt-expansion shocks raise Treasury yields across the curve (hump-shaped, peaking at 5–10 years) mainly through higher term premia, reduce Treasury convenience yields, and widen BAA–AAA spreads, tightening financial conditions.
- Volume shocks crowd out private investment and production: business loans fall by 1.3% and construction spending falls by 3% at the trough, with effects concentrated during periods of rapid debt growth.
- Maturity-extension shocks (shifting issuance toward longer maturities) steepen the yield curve, but lower credit-risk premia, fiscal policy uncertainty, and market volatility, acting as a positive fiscal signal.
- These signaling and safe-asset effects stimulate near-term investment and industrial production, even as higher long-term borrowing costs weigh on longer-horizon investment like construction.
- Maturity-compression shocks (shifting toward short-term issuance) operate mainly through a crowding-in channel, lowering long-term yields and boosting broader investment.
Treasury Supply Shocks: Propagation Through Debt Expansion and Maturity Adjustment
Authors: Huixin Bi, Maxime Phillot, Sarah Zubairy
From: Federal Reserve Bank of Kansas City, Swiss National Bank, Texas A&M University
Debt management as monetary policy
In this paper, Hiroaki Endo, Kevin Pallara, Massimiliano Sfregola, and Luca Zanotti ask whether U.S. Treasury debt-management decisions i.e. choices about how much debt to issue and at which maturities, have macroeconomic effects comparable to those of conventional monetary policy. They challenge the conventional view that debt management is merely a cost-minimizing financing exercise with minimal effects on the broader economy.
Endo et al. emphasize the short-vs-long debt distinction (money-like bills vs. duration-risk-bearing notes/bonds), which is largely absent from the Bi et al.’s level/maturity factor decomposition.
The authors identify a “Treasury policy shock” using high-frequency changes in 2-, 5-, 10-, and 30-year Treasury futures prices within a 60-minute window around 597 U.S. Treasury issuance announcements from 1998–2025. They summarize these four maturity-specific price changes into a single shock via principal component analysis, then estimate its effects using daily and monthly local projections, later comparing it to conventional monetary policy shocks and a DSGE model with preferred-habitat bond investors.
Findings
- A Treasury supply shock raises long-term yields (2–30 years) by 7.5–10 basis points while leaving short-term rates almost unchanged.
- Over half of this increase reflects a higher term premium, and it passes through to corporate borrowing rates at nearly 90%.
- Industrial production falls by about 1.8% after one year, driven mainly by a sharp decline in investment.
- Total public debt rises 2% over fifteen months, but the maturity structure of debt barely shifts, confirming this is primarily a volume shock, not a maturity-reallocation shock.
- These effects closely mirror those of a conventional monetary policy shock, except that the Fed sterilizes short-term issuance (keeping short rates flat) while only partially offsetting long-term issuance.
- The Fed largely sterilizes the liquidity effects of short-term debt issuance (holding the policy rate unchanged while its short-term Treasury holdings rise) but only partially offsets issuance at longer maturities, which is why long yields still respond strongly.
The Treasury Does Monetary Policy
Authors: Hiroaki Endo, Kevin Pallara, Massimiliano Sfregola, Luca Zanotti
From: Northwestern University, Bank of Italy
