In the clean textbook model, monetary policy stabilizes the business cycle while fiscal policy handles public goods, redistribution and long-run investment. The post-pandemic economy has shredded that neat division. The Federal Reserve raised rates by 525 basis points in 2022-2023 to crush inflation, while Washington simultaneously ran deficits more typical of recession than full employment. The result was not just a policy mix; it was a tug-of-war visible in Treasury term premiums, mortgage rates, gold, the dollar and high-beta assets such as crypto.
The question is no longer whether governments or central banks can carry the economic load. Both already are. The sharper question is which institution should carry which part of the load, and at what cost. My answer: central banks should retain responsibility for nominal stability, but fiscal authorities must take more responsibility for the economy’s supply side and distributional trade-offs. Asking the Fed to solve housing shortages, energy bottlenecks, defense shocks or labor-force constraints with the overnight rate is both inefficient and politically dangerous.
The Fed Can Cool Demand, But It Cannot Create Supply
Monetary policy is powerful because it works through the price of money. When the Fed lifted the federal funds target range from near zero to 5.25%-5.50%, it tightened financial conditions across credit cards, auto loans, venture financing and the 30-year mortgage market. The average 30-year mortgage rate moved above 7% in 2023, pricing millions of potential buyers out of the market and freezing existing homeowners into low-rate mortgages originated during 2020-2021.
That is an effective way to slow interest-sensitive demand, but it does not create new housing supply. The United States entered this cycle with a structural housing deficit commonly estimated in the range of 1.5 million to 4 million units, depending on methodology. Rate hikes reduced transactions and construction affordability, but zoning reform, permitting speed, infrastructure spending and construction labor capacity are fiscal and regulatory issues. Treating shelter inflation as a problem for the Fed alone guarantees collateral damage.
The same logic applies to energy and geopolitics. Russia’s invasion of Ukraine, OPEC+ supply management and underinvestment in refining capacity pushed global energy volatility into consumer prices. Higher interest rates can reduce gasoline demand at the margin, but they cannot replace Russian pipeline gas, build LNG terminals overnight or secure critical mineral supply chains. Monetary policy can prevent a supply shock from becoming a wage-price spiral; it cannot neutralize the original shock.
Fiscal Policy Has Become the Bigger Market Variable
The bond market increasingly trades fiscal risk as much as Fed reaction functions. The U.S. federal deficit reached about 6.3% of GDP in fiscal 2023, an extraordinary figure for an economy with unemployment below 4% for much of the period. Gross federal debt surpassed $34 trillion in 2024, and net interest costs have moved toward the scale of defense spending as old low-coupon debt rolls into higher rates. This is not an abstract accounting problem; it changes the Treasury supply investors must absorb.
When the Treasury has to issue more bills, notes and bonds into a higher-rate environment, duration supply matters. The 10-year Treasury yield is not only a forecast of future Fed policy; it also embeds term premium, inflation risk, foreign reserve demand, bank balance-sheet constraints and fiscal credibility. The 2023 bear steepening episode, when long-end yields rose even as markets debated the end of Fed hikes, was a warning that deficits can tighten financial conditions without any additional central bank action.
Fiscal policy also affects the composition of growth. The CHIPS and Science Act, Inflation Reduction Act and Infrastructure Investment and Jobs Act directed capital toward semiconductors, clean energy, grids, broadband and transport. That spending can raise productive capacity if execution is disciplined. But transfer-heavy or poorly targeted stimulus in an economy already near capacity can add demand faster than supply, forcing the Fed to offset it with higher rates. Markets then get the worst mix: larger deficits, tighter money and higher real yields.
When fiscal policy boosts demand and monetary policy suppresses it, the private sector pays through higher borrowing costs, weaker affordability and a higher hurdle rate for investment.
The Right Division of Labor Is Not Austerity
Arguing that fiscal policy must carry more of the structural load is not an argument for blanket austerity. The mistake in the post-2008 period was leaning too hard on central banks while fiscal policy tightened prematurely in parts of the developed world. The mistake after 2020 was assuming emergency-scale fiscal support could persist after private balance sheets had healed and supply was constrained. The right framework is state-contingent, targeted and investment-led.
Fiscal authorities should own three tasks that monetary policy handles badly. First, automatic stabilizers should cushion downturns quickly through unemployment insurance, food assistance and tax timing without requiring repeated legislative drama. Second, public investment should target bottlenecks that raise inflation-adjusted potential growth: housing supply, transmission grids, ports, childcare capacity and workforce training. Third, fiscal policy must make explicit distributional choices instead of outsourcing inequality to asset-price channels created by low interest rates.
The Fed, by contrast, should focus on anchoring inflation expectations and preserving financial stability without becoming the only game in town. The central bank’s 2% inflation target remains a valuable coordination device, but the path back to 2% should recognize where inflation is rate-sensitive and where it is not. Goods disinflation after supply chains normalized showed how much of the inflation surge was non-monetary. Services inflation and wages, however, remain linked to labor-market balance and domestic demand, where Fed policy retains leverage.
The Yield Curve Is Warning Against Policy Confusion
The yield curve has been the cleanest market signal of an overloaded policy mix. A deeply inverted curve traditionally says monetary policy is restrictive and recession risk is elevated. But when deficits are large and Treasury issuance is heavy, the long end can cheapen even as the front end prices future easing. That produces unstable curve dynamics: bull steepening when recession fear dominates, bear steepening when fiscal supply and term premium dominate.
For investors, this distinction is critical. If the curve steepens because the Fed is cutting into a downturn, credit spreads usually widen, equities de-rate and defensive duration performs. If the curve steepens because long-end yields rise on fiscal concern, duration loses, mortgage rates stay punitive, and equity multiples face pressure even without an immediate recession. The same curve shape can carry opposite asset-price implications depending on whether monetary easing or fiscal risk is driving it.
Dollar liquidity is another transmission channel. Tight Fed policy raises the global cost of dollars, pressuring emerging markets with dollar liabilities and tightening offshore funding. Loose fiscal policy can keep U.S. growth and imports stronger than expected, supporting the dollar through relative growth even while worsening the external balance. That combination exports volatility to countries with weaker fiscal positions, particularly those reliant on energy imports or short-term external financing.
Crypto Is A High-Beta Referendum On Liquidity
Crypto markets sit at the far end of the global liquidity spectrum. The live snapshot shows Bitcoin near $62,672, down 1.99% over 24 hours, Ether near $1,695.58, down 1.91%, and Solana weaker by 3.40%. Those moves are not large in crypto terms, but they fit a broader pattern: when real yields rise and the dollar firms, non-yielding duration-like assets struggle, whether the asset is a long-maturity tech stock, gold or Bitcoin.
Bitcoin’s institutionalization through spot ETFs has not made it immune to macro. It has made the macro channel more visible. ETF flows, stablecoin liquidity, funding rates and Treasury yields now interact in real time. If fiscal deficits keep term premium elevated while the Fed refuses to validate easier financial conditions, crypto rallies become more dependent on idiosyncratic adoption and less on broad liquidity expansion. Conversely, a credible fiscal path that allows real yields to fall without reigniting inflation would be far more constructive for digital assets than a panicked Fed pivot forced by recession.
For DeFi, the policy mix also matters through stablecoin collateral income. Higher Treasury bill yields have been a windfall for issuers holding short-term government securities, but they raise the opportunity cost of on-chain risk. When investors can earn over 5% in T-bills, DeFi protocols must offer either genuine productive yield or compensation for smart-contract, liquidity and governance risk. Fiscal-driven Treasury supply therefore affects not only Wall Street funding markets but also the baseline yield hurdle across crypto.
Who Should Carry The Load Now?
The most durable answer is a coordinated separation of duties, not institutional mission creep. Monetary policy should carry the cyclical inflation load: calibrating real rates, managing expectations and ensuring credit growth does not outrun nominal income. Fiscal policy should carry the investment and resilience load: raising labor supply, expanding housing, hardening energy systems, funding defense commitments transparently and stabilizing vulnerable households during shocks.
That requires rules and discipline. Congress should pair any new structural spending with credible medium-term financing, not because bond vigilantes are always at the gate, but because interest expense compounds silently. The Treasury should manage issuance with sensitivity to market functioning, but it cannot solve insolvency math through maturity composition. The Fed should resist pressure to monetize deficits, because fiscal dominance would turn inflation from a policy error into a regime risk.
There is also a geopolitical angle. The U.S. benefits from the dollar’s reserve-currency status, deep Treasury markets and unmatched military reach. Those advantages lower borrowing costs, but they are not unlimited. China, the Gulf states and other reserve managers watch U.S. fiscal governance closely. A country can run large deficits for national emergencies, wars or productivity-enhancing investment. It cannot indefinitely run peacetime deficits near crisis levels while demanding that the central bank clean up the inflationary residue.
Conclusion: The Next Expansion Needs A Better Policy Mix
The economy does not need fiscal policy to replace monetary policy, and it does not need the Fed to act as a shadow legislature. It needs a better assignment of responsibilities. Rate hikes are a blunt instrument for problems rooted in housing supply, energy security, demographic aging and geopolitical fragmentation. Deficit spending is a dangerous tool when it boosts demand without raising capacity. The art is matching the instrument to the problem.
My base case is that markets will increasingly reward countries that combine credible disinflation with visible supply-side reform. That means lower term premiums, steeper but healthier yield curves, stronger private investment and a more durable bid for risk assets. Countries that rely on central banks to do everything while fiscal authorities run pro-cyclical deficits will face higher volatility, more expensive capital and less policy space in the next shock.
The winner in the fiscal-versus-monetary debate should not be the Fed or the Treasury. It should be the balance sheet of the real economy: households with affordable housing, firms with predictable capital costs, workers with rising productivity, and investors with a yield curve that reflects growth rather than dysfunction. That is the economic load worth carrying.