Falling Producer Prices Indicate Monetary Tightening Is Taking a Significant Toll

 | Jul 21, 2023 05:30AM ET

While it is true that prices are still rising at above-average rates in some parts of the US economy, this should be expected. In some parts of the economy, it takes longer than in others for demand and supply to respond to changing monetary conditions. That central bankers choose to focus on these slower-to-respond sectors is a problem we’ve addressed many times in the past. Our purpose today is to highlight some signs that monetary tightness is taking a substantial toll.

Commodity prices tend to lead producer prices for finished goods, and producer prices for finished goods tend to lead consumer prices both up and down. Therefore, the cyclical “inflation” up-swings and down-swings should become evident in commodity prices first and consumer prices last. In this respect, the Producer Price Index (PPI) charts displayed below and the CPI chart included in last week’s Interim Update show that the current situation is not out of the ordinary, despite the extraordinary monetary machinations of the past few years.

The following monthly chart shows that over the past 12 months, the year-over-year percentage change in the PPI for commodities has collapsed from near a 50-year high to near a 50-year low. We now see a level of ‘commodity price deflation’ since 1970 was only exceeded near the end of the Global Financial Crisis of 2007-2009.