S7 Ep44: The US is in a fiscal mess

Episode Summary

Executive Summary: The episode examines whether the US is heading into an unsustainable fiscal path. The guests argue deficits are unusually large, driven by low revenues, rising mandatory spending, and a growing interest bill. Their models suggest that small fixes won’t be enough: stabilizing debt will require a large, sustained mix of spending cuts, tax increases, and/or stronger growth, implemented over a long horizon to avoid recessionary damage.

Main Topics: US deficit and debt are unusually high (Priority: 5/5): Riccardo Trezzi explains that the 2024 US deficit is far above historical norms and unusually large even in a strong economy, making it the largest outside recessions and wars. Structural drivers: taxes, mandatory spending, and interest costs (Priority: 5/5): The guests emphasize that low taxes, rising Social Security/healthcare outlays, and a fast-growing net interest bill are the core reasons the fiscal position is deteriorating. Debt outlook and reserve-currency skepticism (Priority: 4/5): Giancarlo Cossetti notes official projections point to debt above 120% of GDP by 2034 and argues reserve-currency status does not eliminate fiscal limits forever. Policy simulations using the FRB/US model (Priority: 4/5): The team uses the Fed’s FRB/US model to test spending cuts, tax increases, interest-rate changes, and growth scenarios; the conclusion is that no single lever solves the problem. Why short-term austerity is not a clean solution (Priority: 5/5): A 1% of GDP spending cut would require deep cuts to federal purchases and still would not stabilize debt; a large adjustment would likely depress growth and raise unemployment. Long-run adjustment is feasible but politically painful (Priority: 4/5): They argue the debt problem can be addressed over a decade with smoother adjustment, but delaying action increases required fiscal tightening dramatically. Why recessions and political theater complicate adjustment (Priority: 3/5): Recessions lower yields but sharply worsen deficits, while debt-ceiling politics and partisan deadlock reduce the chance of timely reform.

Key Arguments: The US is running an exceptionally large deficit even at or near full employment, showing the problem is structural rather than purely cyclical. The main fiscal pressures come from low tax revenue, growing mandatory spending tied to aging and healthcare, and rising net interest payments after higher rates and larger debt. Official projections and the authors’ simulations both indicate debt will keep rising absent major policy changes, with debt potentially exceeding 120% of GDP by 2034. A 1% of GDP spending cut is insufficient because the adjustment needed to stabilize debt is closer to 4 percentage points of GDP. Tax increases would need to be substantial; even lifting personal income taxation by 4 points would still not fully stabilize debt dynamics. Lower borrowing costs could help at the margin, but a 50–80 basis point decline is not enough to solve the fiscal gap. Strong growth would help, but even sustained 2.5% growth would not be enough; the model suggests something close to 4% would be required to materially solve the problem. A combined package of spending restraint and tax increases could stabilize debt, but in the near term it would likely produce near-zero growth and higher unemployment, making it economically costly. Delaying reform is dangerous because the size of the required adjustment rises over time: the longer policymakers wait, the more severe the eventual correction becomes. The speakers reject the idea that the problem should simply be ignored because the US is a reserve-currency issuer; they argue the world may not absorb an ever-growing stock of dollar liabilities indefinitely.

Data Points: 2024 total deficit: about 7% of GDP - CBO projection cited by Ricardo Trezzi as the current US deficit 2024 primary deficit: about 4% of GDP - Excludes interest payments; highlighted as unusually high Historical average total deficit: about 4% of GDP - Used as a benchmark over the previous 50 years Historical average primary deficit: about 1.5% of GDP - Used to show how far current fiscal policy deviates from normal Deficit vs historical average: roughly 4 percentage points higher - Difference between current total deficit and 50-year average Largest deficit outside recessions and wars: 7% of GDP in 2024 - Described as unprecedented in peacetime and outside downturns Revenue shortfall vs history: about 1 percentage point lower - Taxes/revenues are said to be below historical average Mandatory spending above average: about 3 percentage points higher - Reflects Social Security and major healthcare programs Net interest payments in 2024: about 3% of GDP - Already above average and growing quickly Net interest vs historical average: about 1 percentage point higher - Compared with the prior 50-year average Debt-to-GDP projection for 2034: above 120% of GDP - Cossetti cites official projections Interest bill vs military spending: above military spending in 2024 - Used to illustrate the scale of debt service costs Required adjustment to stabilize debt: around 4 percentage points of GDP - Repeated estimate from simulations and back-of-envelope calculations Tax increase example: personal income tax from 14% to 18% - A 4 percentage point rise used to illustrate a modest deficit-targeting adjustment Tax adjustment magnitude: about 3% of GDP - Estimated effect of the income-tax increase example Cut in federal purchases needed for 1% G spending cut: almost 20% of that category - Shows how hard it would be to cut discretionary spending enough Impact of 50 bps lower borrowing costs: helpful at the margin but insufficient - Even a meaningful rate decline does not stabilize debt Projected 10-year yield difference in model: about 0.5 percentage points higher than CBO - Model forecast relative to CBO projection Growth scenario tested: sustained 2.5% growth - Still not enough to stabilize the debt ratio Growth needed for a real solution: close to 4% - Described as beyond what policymakers can count on Combined consolidation effect: growth becomes zeroish for almost two years - Model outcome under a large adjustment package Unemployment under fiscal consolidation: about 5% or above natural rate - Modelled short-run cost of aggressive adjustment Required adjustment if delayed 10 years: about 5.3% of GDP - From Treasury/financial service-style estimates cited by speakers Required adjustment if delayed 20 years: about 6.5% of GDP - Shows the cost of postponing reform 10-year baseline borrowing cost: about 4% on the 10-year Treasury - Current issuing cost cited when discussing recessions Recession deficit scenario: double digits; 10%–11%+ of GDP - Even a mild recession could sharply worsen deficits

Pivotal Quotes: "the 7% total deficit in 2024 is the largest deficit ever recorded outside recessions and wars." — Riccardo Trezzi: Used to underscore how abnormal the current fiscal position is "the adjustment of the primary balance that you need to stabilize the debt to GDP ratio is way higher than 1% of GDP. It is, in fact, around 4 percentage points of GDP." — Riccardo Trezzi: Core estimate of how much fiscal tightening is needed "we are just the guys who point the finger to the crack and say, I think there is a crack here." — Giancarlo Cossetti: Analogy explaining that the episode is warning about a structural fiscal problem rather than predicting immediate crisis

Implications: Listeners should expect continued pressure for major US fiscal reform. Without a broad, gradual package of spending restraint and revenue increases, debt service will crowd out other priorities, and delaying action will make eventual adjustment more painful.