When an honest price still climbs
Airbnb now shows EU guests one fee-inclusive number up front. The FTC is rolling out the same idea for US lodging and ticketing. A new paper shows the mandate doesn't only change what guests see — it changes what hosts think their rivals charge, and some raise their own price as a result.
Does an honest price display only protect the guest?
Until the end of 2018, Airbnb showed a nightly rate up front and left the cleaning fee for checkout. In 2018 the European Commission and the Norwegian Consumer Authority told Airbnb this broke EU consumer law. By January 2019, users searching from within the EU saw one fee-inclusive number in search results instead.
The usual justification for a rule like this is entirely about the guest: if people underweight a fee they haven't seen yet, showing the full price up front should stop sellers exploiting that blind spot. On Airbnb, though, prices aren't set by the platform — they're set by roughly a million individual hosts, and those hosts read the very same search results guests do, to price against each other. That second audience is the one the usual justification misses.
Transparency only changes what consumers notice. A host who was already charging an honest, fee-inclusive rate has nothing to adjust — only sellers who were hiding something feel any pressure to change.
Some hosts who never charged a hidden fee raise their price anyway. Once a competitor's fee becomes visible, those hosts see a pricier market than they thought existed — and reprice to match it.
Why a fee no one hid changes someone else's price
Hosts set prices for guests, but they also set prices against each other — Airbnb's own host tools encourage comparing your rate with nearby listings. Follow the five steps.
The zero-fee host never hid anything. It still ends up repricing off a number that was never the whole story.
That last step is the paper's point. A policy debate framed only around what guests see misses what the same display teaches sellers about each other.
Three results
Fee use is a trait, not a tactic
71% of London listings always charge a cleaning fee, 27% never do, and only about 2% ever switch. Zero-fee hosts also look less professional on almost every other pricing margin — simpler rates, fewer bookings, rarely Superhosts.
It takes both conditions together
High exposure to a hidden competitor fee alone: no effect. Being a zero-fee host alone: no effect. Both at once: prices rise by roughly £18–19 a night. Neither ingredient does anything without the other.
London moved. New York didn't.
Airbnb never changed the US display. Equivalent high-exposure, zero-fee listings in New York show no comparable price response — strong evidence the London effect is about what hosts could suddenly see, not a seasonal fluke.
Stylised, redrawn to match the shape reported in the paper's event-study figure — flat, non-trending estimates before January 2019, a sharp rise immediately after, sustained through the rest of the year. Not digitised from the original monthly coefficients.
What follows for fee-transparency rules
Four practical implications for regulators writing or enforcing disclosure mandates in markets with delegated pricing.
A platform's price display informs consumers and sellers at the same time. A demand-side justification for a disclosure mandate is necessarily incomplete wherever pricing is delegated to many independent sellers who read that same display to price against each other.
Under the old display, an inattentive zero-fee host was already underpricing relative to a savvy competitor's true total — it just didn't look that way. Visibility doesn't punish that host; it corrects a mispricing they didn't know they had.
Hosts who already charge a cleaning fee cut it by about £0.50–0.55 once EU guests can see it up front, and more among Superhosts. Where the standard shrouded-fee story applies, the mandate works as designed.
The FTC's 2025 Rule on Unfair or Deceptive Fees applies the same fix to US short-term lodging and live-event ticketing — markets where, just like on Airbnb, pricing sits with many small, often non-professional sellers rather than the platform itself.
The rules behind the result
- EU Commission vs. Airbnb, 2018The European Commission and the Norwegian Consumer Authority require Airbnb to display fee-inclusive prices to EU users; full compliance confirmed in July 2019.
- Airbnb's compliance commitmentBy September 2018, Airbnb commits to showing the total, fee-inclusive price across its EU platforms by the end of the year.
- FTC Rule on Unfair or Deceptive FeesEffective May 2025, requires upfront total-price disclosure in US live-event ticketing and short-term lodging — the same delegated-pricing markets this paper studies.
Read the full version
The paper builds a Hotelling model of shrouded add-on pricing with two-sided inattention, then tests it on London Airbnb listings around the EU's January 2019 fee-transparency mandate, combining AirDNA and InsideAirbnb data on prices, cleaning fees, bookings, and guest origin. It separately identifies the supply-side benchmarking channel documented here from the demand-side fee-salience channel, and checks both against New York City, Superhost status, booking outcomes, and algorithmic-pricing placebos.