How Fiscal Policy Moves Financial Markets

The Budget Process Is the Trade

Professor Courtney Wiegand's paper, "The Effect of Fiscal Policy Shocks on Asset Prices," earned an Honorable Mention in the 2025 Marshall Blume Prize — and for good reason. Her methodology tracks market reactions at every stage of the Congressional budget resolution and reconciliation process: the President's proposal, House and Senate resolutions, the convergence point, reconciliation itself. Each leg of that journey delivers forward-looking information about the deficit path years out, and each leg moves prices.

The common assumption — markets wait for legislation to land — is wrong. Wiegand found that investors recalibrate at every stage, not just the signing ceremony. If you're only watching the final vote, you're trading on stale information. The insight came from her time at the House Budget Committee and later at the Federal Reserve Board, where she saw firsthand how high-frequency methods revolutionised monetary policy analysis but had never been systematically applied to fiscal events. She applied them. The results speak for themselves.

What makes this especially relevant now: fiscal shocks aren't just frequent — they're intensifying. The past ten to fifteen years have seen larger, more erratic moves in asset prices tied to deficit expectations. Whether that's a function of political polarisation, ballooning debt, or both, the effect is the same. The signal-to-noise ratio around budget news has shifted, and ignoring it carries real friction costs for anyone running a portfolio.

Gold Knows Something You Don't

Look at gold right now for a live case study. Spot bullion fell 0.4 per cent to $4,148.59 an ounce, retreating from a two-week high as traders await the Fed's June meeting minutes — specifically any clarity on new Chair Kevin Warsh's policy direction. The metal is down more than 25 per cent from record highs earlier this year, battered by inflation fears stoked by the US-Israel war with Iran, a stronger dollar, and rate-hike expectations that refuse to die quietly.

Yet a ceasefire eased some of that pressure, and last week's softer-than-expected US jobs data dialled back the odds of a September hike to about 57 per cent — from over 60 per cent. Lower rates make zero-yield bullion more attractive; higher rates crush it. This is the monetary side of the ledger. But Wiegand's work reminds us that the fiscal side — what Congress does with the deficit — is pulling levers that most gold traders aren't even modelling.

Meanwhile, Citi just became the fifth bank to clear OTC gold transactions in London, the world's largest bullion trading centre, and Perth Mint's gold product sales surged 53 per cent in June. The plumbing is expanding even as the price wobbles. Someone is positioning for volatility, and it isn't the retail crowd waiting for a tweet.

What This Means for Your Book

The practical takeaway is blunt: stop treating fiscal policy as a slow-moving, academic backdrop. The budget process is a serial event with serial market reactions, and Wiegand's methodology gives you a framework to track each stage. If you're managing risk in rates, commodities, or equities, the Congressional calendar deserves a spot next to your FOMC dates.

And the line between fiscal and monetary is blurring. DeFi protocols are now calling for CFTC-specific regulation tailored to staking and yield structures, acknowledging that traditional policy frameworks can't keep pace with how capital actually moves. Whether it's Congressional budget votes or regulatory turf wars, the message is the same: the policy signal is louder than the market admits, and those who decode it early pocket the leverage.