Opportunity cost

Definition

The revenue you give up by choosing one use of a room over the best alternative use of the same room on the same night. Every yes is also a no: accepting a €75 group booking on a night you could have sold at €110 transient doesn’t just earn €75 — it costs the €35 you didn’t earn.

What it tells you

Whether a “safe” piece of business is actually good business. A full hotel feels like success, but if the rooms filled with low-rated bookings while higher-paying demand was turned away (or never given the chance), the occupancy hides a loss. Opportunity cost is the number that makes the invisible half of the decision visible.

How to track it

For any decision that commits capacity — a group, a contract, a promotion — estimate what the same rooms would have earned under the best alternative: expected demand at the expected rate for those dates. Compare the two totals. The comparison only counts when real alternative demand exists; on a weak night with rooms to spare, the opportunity cost of a group is close to zero.

Where it fits

It is the leader’s most important mental model — the discipline behind displacement analysis and mix decisions, and the reason “we were full” is never the whole story. The Academy teaches the mix logic in The optimal mix and the full calculation in Group displacement analysis; the leadership track dedicates a lesson to it for decision-makers.