The bigger survey that gets less attention — and the one central banks now read first.
intermediate · 4 min read · 12 XP
Services are the large majority of a developed economy, and services inflation is the part central banks cannot wait out. Yet the services PMI is consistently treated as the junior partner to manufacturing. In an inflation-focused regime that ranking is backwards.
The services PMI is the same survey instrument as the manufacturing version, run across service businesses — finance, transport, hospitality, business services, communications. Same construction, same 50 threshold, same monthly cadence with flash and final readings in most regions.
The composite PMI weights manufacturing and services together by their share of the economy. Because services dominate, the composite tracks services closely and is the best single-number PMI proxy for overall activity.
It is most of the economy. Services are typically around three-quarters of output and employment in a developed economy. Manufacturing's advantage is that it turns first, not that it is bigger.
It carries the inflation that matters. Services costs are predominantly labour costs, so the services PMI's input-price and output-price components are the most direct survey read on the inflation central banks are actually fighting. Goods inflation mean-reverts; services inflation does not.
It is a better read on the consumer. Household spending is mostly on services, so services activity tracks consumption more closely than manufacturing does.
The regime rule for PMI day
When a central bank is fighting inflation, the services prices components are the market-moving lines on PMI day — not the manufacturing headline. When the concern shifts to recession, manufacturing regains primacy because it turns first. Ask which regime you are in before deciding which release to weight.
The two frequently disagree, sometimes for a year or more: manufacturing deep in contraction while services holds comfortably above 50. This has been a persistent pattern in developed economies and it is genuinely informative rather than a data problem.
Interpretations to hold simultaneously:
Business activity is the services headline, equivalent to manufacturing output.
New business is the forward-looking line, equivalent to new orders.
Input prices and prices charged — the inflation content. Prices charged is the more valuable of the two, because it reflects firms' ability to pass costs on, which is what determines whether input costs reach consumers.
Employment — services employment is the bulk of total employment, so this line is a useful early read on the labour releases still to come.
Business expectations — a twelve-month-ahead confidence measure, useful for the direction of the next few surveys.
No. Because services carries a much larger weight, an unchanged composite built from a large manufacturing fall and a smaller services rise means services strength is doing significant work to offset manufacturing weakness. Look at the services prices-charged line: if it is also firm, the release is more hawkish than the flat composite suggests. Composites hide exactly the information you need in a rotation.
| Outcome | Usual currency effect |
|---|---|
| Services activity above consensus | Support, via growth and via rate expectations |
| Services prices charged rising | Strong support in an inflation-focused regime |
| Services falling below 50 after manufacturing already has | Sharp weakness — the slowdown has gone general |
| Manufacturing weak, services firm | Muted; markets read it as sector rotation |
What to remember
The services PMI covers the large majority of a developed economy and carries the inflation component central banks care most about, since services costs are largely labour costs. Manufacturing turns first, but a manufacturing contraction alongside firm services is usually sector rotation — the significant currency event is services finally rolling over, which confirms the slowdown has gone general.