Estimate daily active usage of Search in a priority market at global scale

Problem Statement Description

Product context: Airbnb is a travel marketplace connecting guests and hosts; its products include stays, experiences, host tools, guest booking, trust and safety, payments, and reviews.

You are asked to estimate the daily active usage of Airbnb Search for budget travelers in a priority market, while keeping the estimate grounded in Airbnb’s global travel marketplace context. “Search usage” should be interpreted as active user engagement with Airbnb’s search experience for stays or related travel discovery, not total app traffic or bookings.

The question is intentionally broad, so you should clarify the market scope, user segment, and unit of measurement before estimating. A strong response should separate the reachable traveler population from actual Airbnb users, then narrow further to budget-conscious users who are likely to search on a given day.

Your estimate should account for travel planning behavior, seasonality, trip frequency, repeat searches per planning cycle, competition from hotels and travel aggregators, and Airbnb-specific dynamics such as supply availability, trust, pricing, and destination intent.

The experience should consider:

- The exact unit being estimated: unique daily search users, search sessions, or search queries

- The geographic or “priority market” definition and why it is reasonable

- The relevant population base: travelers, online travel planners, Airbnb-aware users, and budget travelers

- Adoption assumptions for Airbnb versus hotels, OTAs, Google Travel, local rental platforms, and direct booking channels

- Search frequency assumptions across trip planning windows, same-day travel, inspiration browsing, and repeat comparison behavior

- Cohorts such as domestic versus international travelers, leisure versus work travel, and mobile versus web usage

- Sensitivity checks for peak season, weekends, major events, supply constraints, and macroeconomic pressure on budget travelers

- Sanity checks against bookings, conversion rates, marketplace liquidity, and plausible search-to-booking funnels

The goal is to produce a defensible, clearly structured estimate rather than a single precise number. Your answer should make assumptions explicit, show how each layer narrows or expands the estimate, and identify which assumptions would most affect the final daily active Search usage figure.