Pennings, A.J. (2026, Sep 05) Legal and Regulatory Restrictions on Modern Monetary Theory (MMT). apennings.com https://apennings.com/financial-technology/legal-and-regulatory-restrictions-on-modern-monetary-theory-mmt/

Introduction

In the age of climate volatility and baby boomer retirement, discovering sustainable paths to finance socially focused programs has become an urgent public priority. Modern Monetary Theory (MMT) offers an analytical perspective on public finance that highlights how national expenditure can advance full employment, accelerate decarbonization, and underwrite resilient public infrastructure. Stephanie Kelton (2020) directly challenged orthodox assumptions surrounding sovereign deficits, dispelling the persistent analogy that equates federal fiscal operations with the budgetary constraints of a private household.

This essay examines the analytical promise of MMT for the United States political economy while interrogating the statutory, legislative, and institutional mechanisms that restrict long-term fiscal expansion without corresponding taxes or bond auctions. While MMT demonstrates that sovereign currency issuers face resource constraints rather than financial ones, the US institutional architecture intentionally ties deficit outlays to debt issuance through Treasury auctions. The central structural barrier to MMT-style policy is not an operational inability to spend, but a web of historical statutes that mandate public debt borrowing alongside deficit outlays.

The Analytical Case for MMT

Kelton’s framework builds directly on Warren Mosler’s (1994) foundational treatise, Soft-Currency Economics. Grounded in direct trading floor experience within wholesale bond markets, Mosler demonstrated that a sovereign government issuing an unbacked fiat currency operates under entirely different fiscal realities than private market participants. As Mosler observed, fiat money operates essentially as a tax credit rather than a physical commodity.

Sovereign currency issuers cannot become involuntarily insolvent in their own unit of account. Government spending is not constrained by accumulated tax revenues or prior borrowing; rather, federal disbursements occur when the central bank credits private bank reserves, which injects fresh liquidity into the commercial banking system. Sovereign deficits directly generate the net financial assets of the private sector. Within this mechanics-first approach, the primary constraint on public spending is real resource capacity such as labor, raw materials, energy, and industrial infrastructure rather than nominal treasury balances. Overspending relative to real productive capacity generates demand-pull inflation, which represents the genuine operational boundary of fiscal policy.

Taxes perform a crucial macroeconomic function in this system. They drive demand for the sovereign currency and drain purchasing power from circulation to mitigate inflationary pressures. Taxes can also disincentivize socially costly activities or steer capital investment, as seen with the clean-energy tax incentives established under the Inflation Reduction Act of 2022 (P.L. 117-169). Concurrently, public bond sales do not fund government operations in a mechanical sense; instead, they serve as liquidity-draining operations that allow the central bank to manage policy interest rates while supplying international capital markets with risk-free collateral. High-quality liquid assets like US Treasuries are foundational to offshore credit intermediation and Eurodollar markets.

Crisis Fiscal Policy and the Pandemic Spending Precedent

The federal response to the COVID-19 pandemic served as a massive empirical stress test of sovereign fiscal capacity. Interventions authorized under both the Trump and Biden administrations deployed trillions of dollars to backstop the domestic and global economies. Programs like the Paycheck Protection Program, authorized by the Coronavirus Aid, Relief, and Economic Security (CARES) Act (P.L. 116-136), injected unprecedented liquidity directly into private balance sheets, demonstrating how quickly a currency issuer can mobilize purchasing power during an emergency.

However, because these expenditures were recorded under traditional budget frameworks, the nominal federal debt tally expanded rapidly. This expansion revitalized orthodox political narratives warning of imminent insolvency, fiscal decline, and generational debt burdens—tropes frequently amplified by hard-money and cryptocurrency advocates promoting speculative hedges against sovereign fiat.

From an institutional perspective, the pandemic highlighted several unresolved questions:

What institutional indicators define the real capacity limits of the US productive base? What are the limits, if any, to US government spending?

Can public disbursements ever be legislatively severed from nominal debt tracking? Can US spending be severed from current debt accounting metrics?

Which democratic frameworks should prioritize public capital investments? What are the optimum spending choices for additional spending?

How can a state prevent fiscal extraction by political factions seeking to co-opt sovereign currency creation for narrow private interests? Can nefarious administrations coopt the MMT analysis and increase spending on various projects unassociated with democratic political economy?

The Architecture of the US Federal Spending Apparatus

The US Constitution vests Congress with the structural authority to coin money and regulate its value (U.S. Const. art. I, § 8, cl. 5). The creation of the Department of the Treasury in 1789 initiated an institutional infrastructure to administer federal disbursements, tax receipts, and public credit operations.

Modern fiscal mechanics operate primarily through the Treasury General Account (TGA) maintained at the Federal Reserve Bank of New York. The Federal Reserve Act of 1913 formally established the central bank as the government’s fiscal agent. Whenever the Treasury disburses funds, the Federal Reserve credits the reserve account of the recipient’s depository institution while debiting the TGA.

Crucially, modern statutory practice prohibits the Treasury from running indefinite, unbacked overdrafts on the TGA. While the Federal Reserve historically permitted temporary Treasury overdrafts, legislative modifications ended this flexibility by the early 1980s, mandating that the TGA maintain positive collected balances sourced strictly from tax receipts or authorized security sales. Within the Treasury, the Bureau of the Fiscal Service coordinates these daily inflows and debt issuances through cash forecasting and liquidity auctions.

Statutory Barriers that Mandate Debt Issuance for Deficit Spending

The legal mandate requiring the Treasury to issue interest-bearing debt to cover revenue shortfalls is codified across several landmark statutes:

The Second Liberty Bond Act of 1917 was enacted during World War I, this statute and its subsequent revisions granted the Treasury broad authority to issue bonds, notes, and certificates of indebtedness, while establishing an aggregate statutory debt ceiling that continues to trigger recurring legislative standoffs.

Section 14 of the Federal Reserve Act delineates the open-market operations of the Federal Reserve Banks and strictly prohibits the central bank from purchasing newly issued securities directly from the Treasury. By restricting the Fed to secondary-market transactions, the statute prevents direct debt monetization and forces the Treasury into private dealer auctions.

The Treasury-Federal Reserve Accord of 1951 formally ended the wartime policy of pegging Treasury bond yields, establishing operational independence between the Federal Reserve’s monetary targets and the Treasury’s fiscal financing operations.

Title 31 of the United States Code was set into positive law in 1982, Title 31 (§ 3101–3121) governs federal money, debt administration, and public borrowing operations. Section 3121 explicitly directs the Secretary of the Treasury to manage public debt through competitive market auctions, reinforcing market-based investor absorption as the required counterpart to deficit spending.

These statutes collectively enforce an institutional barrier. Even if the sovereign state of the US faces no intrinsic currency constraint, its administrative agencies are legally barred from spending beyond tax receipts without selling an equivalent volume of debt instruments into the financial markets.

From Reaganomics Spending to the Clinton Surpluses

The modern configuration of this debt-issuing apparatus matured during the 1980s. The Reagan administration pursued supply-side tax cuts through the Economic Recovery Tax Act of 1981 (P.L. 97-34) and the Tax Reform Act of 1986 (P.L. 99-514), coupled with significant defense expenditures. Because regulatory statutes prohibited direct treasury monetization, these deficits necessitated a major expansion of computerized, open-market Treasury debt auctions. Rather than sparking domestic capital investment alone, these structural shifts stimulated internationalized capital flows, setting up persistent current account deficits and broad industrial off-shoring.

During the 1990s, the Clinton administration pursued fiscal consolidation. Supported by revenues from the Omnibus Budget Reconciliation Act of 1993 (P.L. 103-66), rapid productivity gains from the commercial Internet expansion, and military spending reductions following the Cold War, the US federal government posted consecutive unified budget surpluses from fiscal years 1998 through 2001.[1]

From an MMT accounting perspective, persistent sovereign surpluses necessarily drain net financial assets from the domestic private sector unless offset by external trade surpluses. As private liquidity contracted and domestic debt expanded to sustain consumption, the economy proved vulnerable to the 2000–2002 dot.com and telecom technology busts. The subsequent Bush administration rapidly reversed these surpluses through the Economic Growth and Tax Relief Reconciliation Act of 2001 (P.L. 107-16), the Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (P.L. 108-173), and prolonged military engagements in Iraq and Afghanistan, which cost trillions of dollars over two decades (Crawford, 2021).[2]

Structural Limitations and Political Economy

The analytical insights of MMT accurately illuminate the operational mechanics of fiat currency. A sovereign issuer creates money through expenditure and uses bond sales and taxation to stabilize reserves, manage interest rate targets, and curb excess purchasing power. Nevertheless, deploying this framework within the American political economy requires addressing deep-seated legal, institutional, and inflation risks:

Supply-Side bottlenecks and inflation, as demonstrated during the post-pandemic recovery, indicated significant inflation efects from supply chain limitations. After injecting signicant sovereign liquidity into an economy constrained by brittle supply chains, geopolitical energy shocks, and concentrated market power, price inflation emerged. This even occured when labor markets are not fully saturated.

Legal and regulatory lock-in limits spending authorities. The statutory framework embedded in Title 31 Code, the Federal Reserve Act, and the Second Liberty Bond Act legally prevents the executive branch from bypassing private bond dealer auctions. Reforming these structures would require contentious congressional legislation.

Political capture and allocation risk pressure sovereign states with an unconstrained fiscal pipelines. They face intense pressure from organized corporate and defense lobbies to direct spending toward subsidized private rents rather than public infrastructure, human capital, or climate adaptation.

Unlocking sovereign public spending to confront systemic crises, from decarbonization to demographic aging, demands more than theoretical clarity regarding fiat monetary mechanics. It requires democratically reforming the legislative covenants and statutory hurdles that continue to treat sovereign public investment as the moral and financial equivalent of private indebtedness.[3]

References

Coronavirus Aid, Relief, and Economic Security (CARES) Act, Pub. L. No. 116-136, 134 Stat. 281 (2020).
Crawford, N. C. (2021). The costs of war: A 20-year retrospective of the post-9/11 wars. Watson Institute for International and Public Affairs, Brown University.
Economic Growth and Tax Relief Reconciliation Act of 2001, Pub. L. No. 107-16, 115 Stat. 38 (2001).
Economic Recovery Tax Act of 1981, Pub. L. No. 97-34, 95 Stat. 172 (1981).
Federal Reserve Act of 1913, Pub. L. No. 63-43, 38 Stat. 251 (1913).
Inflation Reduction Act of 2022, Pub. L. No. 117-169, 136 Stat. 1818 (2022).
Kelton, S. (2020). The deficit myth: Modern monetary theory and the birth of the people’s economy. PublicAffairs.
Medicare Prescription Drug, Improvement, and Modernization Act of 2003, Pub. L. No. 108-173, 117 Stat. 2066 (2003).
Mosler, W. (1994). Soft-currency economics: A paper on the operating mechanics of the United States monetary system. Adams, Viner and Mosler.
Omnibus Budget Reconciliation Act of 1993, Pub. L. No. 103-66, 107 Stat. 312 (1993).
Second Liberty Bond Act of 1917, Pub. L. No. 65-43, 40 Stat. 288 (1917).
Tax Reform Act of 1986, Pub. L. No. 99-514, 100 Stat. 2085 (1986).
Treasury-Federal Reserve Accord of 1951, 37 Fed. Res. Bull. 267 (1951).
U.S. Const. art. I, § 8, cl. 5.
31 U.S.C. §§ 3101–3121 (Money and Finance: Public Debt).

Notes

[1] Did the government surpluses during the 1990s lead to the dot.com and telecom crashes that followed immediately after?
[2] When I began teaching economics at NYU in 2002, I watched this reversal carefully.
[3] This is a revision of my previous post. See Pennings, A.J. (2024, Sept 29) US Legislative and Regulatory Restrictions on Deficit Spending – Reflecting on Modern Monetary Theory (MMT). apennings.com https://apennings.com/how-it-came-to-rule-the-world/digital-monetarism/us-legislative-and-regulatory-restrictions-on-modern-monetary-theory-mmt/

© ALL RIGHTS RESERVED

Not to be considered financial advice. AI is often used, and results are thoroughly interrogated. Links are used for some citations. Views are my own and do not express the stances of my employers, past or present.

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Anthony J. Pennings, PhD is a Professor at the Department of Technology and Society, State University of New York, Korea and a Research Professor for Stony Brook University. He teaches AI and broadband policy. From 2002-2012 he taught digital economics and information systems management at New York University. He also taught in the Digital Media MBA at St. Edwards University in Austin, Texas, where he lives when not in Korea.

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Category: enabling frameworks, financial news, financial technology, public administration, sustainable development
Tags: Modern Monetary Theory (MMT) > Stephanie Kelton > Warren Mosler

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