Jerome Powell had his last meeting at the head of the Federal Reserve of the United States on Wednesday, April 29. The nominee to succeed him, Kevin Warsh, is an economist and former monetary policy chief who served as a member of the Fed’s Board of Governors from 2006 to 2011.
Warsh’s preference for the Trimmed PCE (Personal Consumption Expenditures, Price Index), as a measure bureaucrats use to estimate inflation, rather than Core PCE has become controversial, with several critics pointing out that monetary policy could backfire.
The Trimmed Mean PCE Inflation Rate is an alternative measure of core inflation calculated by the Dallas Fed. Unlike conventional indices (PCE), this measure aims to eliminate the “noise” or extreme volatility of certain prices with the intention of identifying the true and structural inflationary trends.
The process consists of ordering the price changes of all components of the PCE from lowest to highest and “trimming” or discarding a percentage of the extreme variations at both extremes (the highest and the lowest). Thus, the Dallas Fed said it would prefer to use the Trimmed PCE, which excludes the top 31 percent and bottom 24 percent of the itemized price components.
Core PCE automatically removes only volatile food and energy prices and is supposed to serve as a more accurate indicator of the long-term inflation trend, often outperforming conventional measures by reducing volatility, and its release is updated monthly in line with the Bureau of Economic Analysis’s (BEA) personal income and spending calendar.
So, the Trimmed PCE removes any component, regardless of its category, that has had extremely unusual price behavior in each month. In short, it supposedly provides a smoother and more stable view of how prices are evolving, removing the most volatile components to see the real direction of inflation.
Now, it turns out that today the Trimmed PCE comes in at just 2.4 percent annually (the Fed’s “inflation target” is 2 percent) and could suggest to bureaucrats that there is no room to cut the Fed’s benchmark interest rates, and even less so when Core PCE is at 3.2 percent. The excuse of many bureaucrats is that the Trimmed PCE was not designed to underestimate inflation, but to better capture it, which is achieved by cutting a large portion of high-inflation items.
The Trimmed PCE would be a “trend confirmation tool” rather than a leading indicator, according to bureaucrats. Many argue that the Trimmed PCE is difficult to use as a leading indicator in the current environment. But it was never intended to be a leading indicator in the first place. Its real role is to help confirm if an inflation trend has changed, analysts say, and it would also work when inflation starts to cool down, but this is not clearly reflected in Core PCE.
In other words, each bureaucrat calculates “inflation” as it suits him best. It is like the recent discussion in Argentina on what basis (2004 or 2017/18) to use to calculate it with what obviously has no scientific value as not all econometrics does, it only has it for bureaucrats who do not want the truth to be known. This is so evident that it is not understood how popular it is, even among “experts,” to confuse the rise in the PCE (or CPI) with inflation.
As Ludwig von Mises and the Austrian School of economics explained, econometrics is not a science, but a drawing to justify the unjustifiable with the air of science for the sole fact of abounding in “statistics” (calculated with arbitrary methods and criteria, as we saw) and mathematics that, strictly speaking, are not a science but a scientific language. Mises argued that economics is based on human action, logical and deductive.
Unlike the “real,” physical sciences, in economics there are no constant relationships between variables since—given human agency—human preferences change constantly and unpredictably, making it impossible to derive exact scientific laws from past data. Human action is unrepeatable: Mises argued that historical data are the result of complex and unrepeatable human actions in real time, so they cannot be used to predict the future or validate economic theories.
Thus, econometrics treats historical data as if they were the results of a laboratory experiment, ignoring that the historical and social context changes, in real time, given unpredictable free will. Econometrics aims to quantify economic phenomena and validate theoretical models through statistical inference, and expects—like everything that arises from totalitarian conceptions—that people, the market, have a uniform, measurable behavior.
On the other hand, the currency complies—like any good or service—with the supply and demand curve in real time. Why wouldn’t it? Only because it is not in the interest of bureaucrats and politicians that this is known. Inflation (or deflation) is an excess (or shortcoming) of monetary issuance in real time, which causes the devaluation (appreciation) of the currency. Ergo, inflation (deflation) is not the rise (fall) of the PCE or the CPI, although they have an indirect relationship (when the currency is devalued, a good is quoted at the same value, ergo, more of that currency).
To top it all off, bureaucrats set interest rates on these indices, which is completely counterproductive, because the rates arbitrate between the need for capitalization and consumption in real time and bureaucrats decide them when they want and on false bases. When bureaucrats set rates, they necessarily squander social resources, either in excess consumption or excess capitalization, depending on whether the rates are exaggeratedly low or high compared to those that the market would establish in real time.
