Richard Berner on Growth of the Private Credit and the Role of Fiscal Dominance on Treasury Markets
TL;DR
Former OFR Director Richard Berner warns that global liquidity has become increasingly fragile due to a fundamental mismatch between surging sovereign debt issuance and shrinking market-making capacity, while the shift to collateralized finance and looming fiscal dominance risks threaten to amplify future financial stress.
💧 The Mechanics of Fragile Liquidity 3 insights
Two distinct liquidity types drive systemic risk
Market liquidity (converting assets to cash quickly) and funding liquidity (ability to finance asset portfolios) interact dangerously during stress, creating fire-sale dynamics when firms sell what they can to meet liability rollovers.
Collateralized finance increases procyclicality
The post-GFC shift from unsecured to collateralized funding (e.g., repo) reduces counterparty risk but amplifies price volatility through margin calls and forced deleveraging, as demonstrated by the 2022 UK LDI pension crisis.
Debt volumes outpace intermediary capacity
U.S. sovereign debt has nearly doubled since the financial crisis with deficits running 6-7% of GDP, while the financial system's capacity to make markets and provide liquidity has not kept pace, creating a structural vulnerability.
⚖️ Regulatory Constraints and Market Structure 3 insights
Supplementary Leverage Ratio constrains market-making
The SLR has become a binding constraint that disincentivizes banks from intermediating low-risk activities like Treasury repo, directly reducing the system's ability to handle high volumes of sovereign debt.
Liquidity rules can trigger hoarding behavior
Liquidity Coverage Ratios intended to ensure resilience may backfire during stress by incentivizing institutions to hoard High-Quality Liquid Assets simultaneously, leaving less liquidity available for those who need it most.
HQLA designations proved illusory during stress
Silicon Valley Bank's 2023 collapse revealed that Treasuries and mortgage-backed securities designated as 'high-quality liquid assets' became effectively illiquid when rising rates caused mark-to-market losses that banks were unwilling to crystallize.
📉 Fiscal Dominance and Treasury Risks 4 insights
Warning signs of fiscal dominance accumulating
Treasury Secretary Yellen recently acknowledged fiscal dominance concerns, citing increased reliance on T-bill issuance, regulatory tweaks to accommodate debt volumes, and political pressure for rate cuts to reduce interest costs.
Convenience yield showing early erosion
Research by Krishnamurthy and Rogoff detects a gradual decline in the 'convenience yield'—the premium investors sacrifice to hold Treasuries—which could signal slipping safe-asset status and higher future borrowing costs.
Short-end issuance concentrates rollover risk
Treasury's strategy of issuing heavily at the short end to minimize current interest costs departs from Alexander Hamilton's principle of regular, predictable issuance across the curve, creating refinancing vulnerabilities and distorting money markets.
International cautionary tales foreshadow risks
Gradual fiscal deterioration in the UK and France has already widened their sovereign yield spreads over other European debt, demonstrating how investor confidence erodes slowly before potentially accelerating, threatening the dollar's reserve status.
Bottom Line
Policymakers must address the fundamental fiscal unsustainability driving debt issuance rather than merely treating symptoms through regulatory tweaks, or risk a gradual erosion of Treasury market liquidity and the dollar's safe-haven status that underpins global financial stability.
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