What is PPI? The producer price index as a CPI leading indicator

Most inflation coverage focuses on the Consumer Price Index — the measure of what households pay. But there is an earlier link in the chain: the Producer Price Index, which captures prices at the point of production, before goods travel through wholesalers and retailers to reach consumers. Understanding PPI helps you anticipate where CPI is heading.

What PPI actually measures

The US PPI for Final Demand — the headline series published by the Bureau of Labor Statistics — measures prices received by domestic producers for goods, services, and construction sold to final users. It covers three main components:

Goods (≈34% of PPI): physical products — energy, food, manufactured goods. This is the most volatile part and the most directly linked to commodity markets and global supply chains.
Services (≈66% of PPI): transportation, warehousing, wholesale and retail trade margins, professional services, healthcare. Services PPI is larger and stickier than goods PPI.
Construction: a smaller component covering new residential and commercial structures.

There are also "intermediate demand" PPI series that track prices at earlier stages of the production chain — raw materials, semi-finished goods, processed intermediate goods. These stage-of-processing indices are useful for identifying pipeline pressures before they reach final demand.

How PPI transmits to CPI

The transmission from PPI to CPI is real but imperfect. For goods, the pass-through typically takes 1–3 months: a producer price increase reaches wholesale, then retail, then consumer prices. Empirical studies (including Federal Reserve research) find a pass-through coefficient of roughly 0.3–0.5 for goods — a 10% rise in goods PPI eventually translates to a 3–5% rise in consumer goods CPI, with the remainder absorbed in margins.

For services, the link is weaker. Services PPI measures what businesses charge each other for services (business-to-business transactions). Services CPI measures what consumers pay for largely different services (rent, healthcare copayments, restaurant meals). The correlation exists — particularly in healthcare and some professional services — but it is noisier and operates with longer lags. See our guide on how to read a PPI report for a step-by-step walkthrough of the data.

Why core PPI ex-trade services is the cleanest signal

Standard core PPI (ex-food and energy) is cleaner than all-items PPI, but it still includes "trade services" — the margins that wholesalers and retailers earn. Trade service margins are volatile and can swing sharply without any underlying change in final consumer prices. The "super core" PPI measure — final demand less food, energy, and trade services — is the cleanest read of underlying pipeline pressure. In October 2026, this measure held at 2.6% year-on-year for the second month running. See the latest US PPI October 2026 release for the current data.

International equivalents

The US PPI has direct equivalents elsewhere. Eurostat publishes the Producer Prices in Industry (PPI) for EU member states — an important leading indicator for euro area HICP. The UK's ONS publishes "Output PPI" and "Input PPI" — the latter capturing what manufacturers pay for their inputs (materials, energy). Input PPI typically leads output PPI by 1–2 months, and output PPI leads CPI goods by a further 1–3 months, creating a two-step leading relationship. The ONS PPI bulletin is published monthly alongside the CPI release.

PPI limitations

PPI is not a perfect CPI predictor. Three important caveats: (1) Margin absorption: retailers and wholesalers may absorb PPI increases rather than passing them through, especially when consumer demand is weak. During 2023–24, many retailers held prices as PPI fell, rebuilding margins rather than cutting prices — which partly explains why consumer prices came down more slowly than PPI. (2) Composition differences: PPI covers many goods and services (like industrial chemicals or financial intermediation) that never appear in CPI. (3) Import prices: PPI only covers domestically produced goods. For an import-heavy economy, imported inflation through import price indices matters too. Track the full US inflation picture on our inflation explorer.

Frequently asked questions

Is PPI a good predictor of future CPI inflation?

PPI is a useful but imperfect leading indicator. For goods, the correlation is well-established: Federal Reserve Bank of St. Louis research shows goods PPI leads core goods CPI by approximately 2–3 months. For services, the link is weaker — services PPI measures business-to-business transactions, while services CPI captures consumer-facing services that are more directly driven by wages. The best forward indicator for core CPI is probably a combination of PPI core (for goods pipeline), wage growth (for services), and shelter CPI (for housing, which has its own unique lag structure). None alone gives a complete picture.

Does PPI include imports?

No — PPI covers only domestically produced goods and services. Import prices are tracked separately by the BLS in their Import/Export Price Indexes. For a complete picture of pipeline price pressure, particularly in import-heavy sectors like consumer electronics, clothing, and some food categories, you need to look at both PPI (domestic production costs) and import price indices (foreign production costs). When the US dollar weakens, import prices rise — contributing to consumer inflation through a channel that PPI does not capture at all. Our tariff pass-through term explains how trade policy interacts with import prices.

How often is PPI published and where do I find the data?

The BLS publishes US PPI monthly, typically in the second week of the month (about 2 weeks after the reference month). The full schedule is at bls.gov/schedule. Data are available free via the BLS data portal and the FRED database. For international PPI data, the OECD's stats.oecd.org provides harmonised series for most advanced economies. Our guide to reading a PPI report walks through how to navigate the BLS release.