Fed Chair Warsh Signals Shift to Modern Data Amid Divergent Inflation Signals

Fed Chair Kevin Warsh has indicated a willingness to modernize the central bank's data, moving beyond traditional surveys to get a clearer picture of inflation.

This comes as different inflation metrics are telling conflicting stories; for instance, the headline CPI is high at 4.2%, while the trimmed-mean PCE is much closer to the 2% target.

By improving data collection, the Fed aims to make more precise policy decisions, especially when deciding the future path of interest rates.

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Federal Reserve Chair Kevin Warsh has signaled a significant potential shift in how the central bank understands the economy.

In a recent Q&A, he noted that the Fed still relies heavily on “old-fashioned surveys” and is open to modernizing its data sources. This isn't just a technical update; it's a response to a growing problem where different economic indicators are painting vastly different pictures of inflation, making the Fed's job of managing the economy increasingly complex.

So, what’s driving this? The main reason is the widening gap between key inflation metrics. First, the most recent Consumer Price Index (CPI), which people see in headlines, showed inflation running hot at 4.2%. This is largely due to a spike in energy prices. However, the Fed's preferred gauge, the core Personal Consumption Expenditures (PCE) price index, is lower at 3.3%. And if you look at an even more refined measure, the Dallas Fed's trimmed-mean PCE, which strips out the most volatile price changes each month, it's at just 2.3%—very close to the Fed's 2% target.

This discrepancy creates a communication challenge. Is inflation a major problem, or is it nearly under control? The answer depends entirely on which data you look at. This is why Chair Warsh is emphasizing the need for better data. A resilient job market and strong service-sector activity give the Fed some breathing room to focus on this measurement issue rather than being forced into immediate rate cuts.

This idea isn't new, though. It builds on previous discussions within the Fed. For example, Governor Adriana Kugler spoke in 2024 about the value of using private-sector and real-time data to supplement official statistics. Chair Warsh himself hinted at this approach during his confirmation hearings, suggesting the Fed could “survey a billion prices” using modern technology. By embracing a wider range of data—from credit card transactions to online pricing—the Fed hopes to get a more accurate, real-time signal of economic health, leading to more robust and credible policy decisions.

Consumer Price Index (CPI): A measure of the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services.
Personal Consumption Expenditures (PCE) Price Index: A measure of prices paid for goods and services purchased by or on behalf of U.S. households. It is the Fed's preferred inflation gauge because its scope is broader and its weights can change as people substitute goods.
Trimmed-Mean PCE: A specialized inflation measure calculated by the Dallas Fed that excludes a certain percentage of the items with the highest and lowest price changes in a given month, providing a look at the underlying inflation trend.