Concert ticket prices vs. inflation

The question people ask is simple: are concert tickets rising faster than everything else? The answer is harder than the question because the United States does not publish a concert ticket price index. What it publishes is a Consumer Price Index item called admission to movies, theaters and concerts, series CUSR0000SS62031, and that item is the measure almost every published claim about ticket inflation ultimately rests on, whether or not the claim says so.

Live Index stores that series as released and tracks it against the all-items CPI, series CUSR0000SA0, on the admissions price pressure page. The comparison is the whole point. An admissions index rising four percent in a year means one thing when general prices are rising four percent and something quite different when general prices are rising one percent. Reading admissions inflation in isolation leaves that distinction invisible, which is what the relative line on that page is there to show.

What the CPI admissions item actually measures

CPI is a price index for a defined basket of goods and services, collected repeatedly over time so that the same thing is priced in each period. For this item, the priced thing is the admission line on a consumer's receipt across cinema, theatre and concert attendance combined. The index captures what a household pays to get in the door. It does not separate a $22 cinema seat from a $180 arena ticket, and it does not tell you what share of its movement came from any one of the three.

Two further properties matter. The series Live Index stores is seasonally adjusted, which makes month-to-month movement comparable across the calendar but means recent history can be revised when annual seasonal factors are updated. And CPI prices a transaction: it does not decompose that transaction into face value, mandatory fees and resale, which is the decomposition that determines what a fan experiences as a price increase.

Nominal, real and relative

Three different comparisons get called inflation-adjusted pricing, and they answer different questions. Nominal change is the raw movement in the index. Real change deflates a price series by a general price index to express it in constant purchasing power. The relative view — the ratio of the admissions index to the all-items index, rebased so a chosen month equals 100 — asks whether admissions are gaining or losing ground against the wider economy. Live Index publishes the nominal twelve-month change and the relative line, both computed from stored levels with arithmetic a reader can reproduce.

None of the three is an affordability measure. A price can rise while remaining easier to afford if wages rise faster, and can fall while becoming harder to afford if hours or wages fall. Affordability requires a denominator in earnings, which is the construction the Live Index fan affordability work sets out separately and which this reference does not conflate with price movement.

The proxy problem, stated plainly

Anyone quoting the admissions CPI as a concert ticket index is overstating the evidence, and that includes citations that pass the number along without the caveat. The item is a proxy. It is a good proxy in the sense that concert admissions are inside it and it is measured consistently by a statistical agency with a published methodology. It is a poor proxy in the sense that cinema admissions, which behave differently, sit in the same basket, and in the sense that the fastest-moving component of a modern ticket price — the fee stack — is not broken out anywhere in it.

That is why the honest form of the claim names the series. Live Index labels the measure as an admissions proxy on every page that renders it, states the series identifier, and does not describe it as a concert ticket average anywhere.

Where the gaps are

The unmeasured territory is large and worth naming: the split between face value and fees on a given sale, the difference between primary and resale transaction prices, the distribution of prices within a single show under dynamic and tiered pricing, and everything below the arena tier where no comparable price collection exists. Each of those is a separate measurement problem, and none of them is solved by looking harder at the CPI.