Waller Urges Caution: Don’t ‘Fight the Last War’ on Inflation, But Rate Hikes Remain Possible
Preface
Federal Reserve Governor Christopher Waller recently addressed the complex outlook for inflation, urging policymakers to be careful not to respond reflexively based on prior episodes. In this piece, we summarize his main points, explain the novel drivers he mentioned, and outline the choices facing the Fed. The purpose is to provide a clear, balanced account of why Waller believes patience and data matter, even as risks remain that could require tighter policy. His remarks seek to reconcile the lessons of past delays in raising rates with the need to avoid overreacting to transient price moves.
Lazy bag
Waller cautions against repeating past errors by rushing to tighten policy, while recognizing that inflation could remain elevated and necessitate rate increases. He highlights new influences—beyond traditional drivers like energy and tariffs—such as artificial intelligence, and stresses a deliberate, data-focused approach.
Main Body
In a recent speech delivered in New York, Governor Christopher Waller of the Federal Reserve outlined a cautious framework for assessing inflation and the appropriate policy response. Waller began by acknowledging that inflation remains a legitimate concern for the central bank. However, he warned against letting the desire to correct past mistakes become the reason for a premature or inappropriate policy reaction—a concept he framed as a warning not to "fight the last war."
Waller noted that the current inflationary environment has evolved beyond the familiar explanations many policymakers and observers cite. While energy price swings and tariff effects continue to play roles, he pointed to other, less conventional contributors that have helped keep inflation above the Fed's 2% objective. Prominently, he mentioned developments tied to artificial intelligence and demand spillovers as part of the mix sustaining price pressures.
Drawing on the lessons of 2021 and 2022, Waller acknowledged the Fed's earlier shortcoming: policymakers were slow to counter rising inflation. That experience makes him attentive to the risks of inaction. Yet he emphasized that this history does not justify an automatic inclination to tighten policy at the first sign of price increases. Instead, he argued for a careful, evidence-driven evaluation of what is driving inflation now.
Waller described two plausible scenarios. In one, inflation begins to subside on its own, allowing the Fed to maintain the policy rate at its then-current range. In the other, inflation proves persistent or rises further, creating a stronger case for additional monetary tightening in the near term. Because both pathways remain credible, Waller said policymakers must remain flexible and responsive to incoming data.
To inform that judgment, Waller listed several current influences on price dynamics. He pointed to recently implemented tariffs (noting their timing and potential pass-through to consumer prices), upward pressure on energy costs linked to geopolitical developments — particularly the conflict in the Middle East — and demand-side effects related to increased deployment of artificial intelligence. He stressed that teasing out the relative importance of these factors is essential before committing to further rate moves.
Waller also highlighted factors that favor a less aggressive stance. Labor markets remain relatively strong but not overheated in ways that typically drive broad-based wage inflation. Similarly, inflation expectations — at least as measured by market indicators — appear well-anchored, which reduces the risk of second-round effects where higher inflation becomes self-sustaining. Nevertheless, he warned against complacency: well-anchored expectations do not guarantee that above-target inflation can be ignored indefinitely.
The governor made his view concrete in discussing upcoming data: his remarks came just ahead of the Bureau of Labor Statistics' release of the consumer price index for June. Market forecasts at the time suggested a modest decline in the headline reading, largely because of lower oil prices, while core inflation measures (which exclude food and energy) were expected to show modest month-to-month increases. Waller said a series of lower core readings would reassure him that inflation is returning to a healthier path, at which point holding the policy rate steady would be appropriate.
Yet Waller was careful to underline the conditional nature of that outcome. He made plain that if inflation keeps surprising on the upside, or if the underlying drivers point to more persistent pressures, the Fed must be prepared to tighten policy further. In other words, past errors inform current prudence, but they do not eliminate the responsibility to act when warranted.
Waller's guidance reflects a familiar central-bank balancing act: avoiding both premature tightening that could unnecessarily constrain growth and belated action that allows inflation to become entrenched. That balancing act is complicated by evolving sources of price pressure — such as technological shifts — that may operate differently from classic supply or demand shocks. Accurately attributing inflation to transitory versus persistent sources therefore matters more than ever.
Overall, Waller's message can be summarized as a call for discipline: use incoming data to update the probability of different inflation trajectories; weigh new drivers carefully; and be ready to tighten if the evidence points that way, but not simply because past delays loom large in memory. This stance leaves the Fed positioned to act responsively while minimizing the risk of repeating earlier mistakes.
Key Insights Table
| Aspect | Description |
|---|---|
| Main Caution | Avoid reacting solely to past mistakes—do not "fight the last war" by tightening prematurely. |
| Potential Drivers | Beyond energy and tariffs, Waller highlights artificial intelligence and demand spillovers as contributors to persistent inflation. |
| Policy Stance | A data-dependent, deliberate approach: hold rates if inflation declines, but be prepared to raise them if inflation stays high. |
| Supporting Factors | A relatively strong labor market not driving inflation and market-based inflation expectations that appear anchored. |
| Near-Term Trigger | Upcoming CPI readings—several months of lower core inflation would support holding the policy rate; persistent increases could prompt hikes. |