The Cost Before the Wait

The repair takes ten minutes. The arrival window lasts all day. You can fill those hours at home, but you cannot promise your presence elsewhere.

Unpredictable waiting can cost you work before the waiting even begins.

Suppose you decline an extra shift to keep the day clear. The technician finishes by breakfast, but the shift has already gone to someone else. An accurate record of the actual wait can still leave out its largest cost: the wages you forfeited to ensure you were present.

Two people with equally crowded calendars can therefore face different burdens. One can rearrange the day’s work; the other’s hours are set by someone else. What matters is not how busy they are, but which commitments they can move without losing pay or leaving someone without care.

Hiring can impose the same cost through repeated last-minute interviews. The applicant who can always interview today may appear more enthusiastic than someone who must arrange shift cover or childcare, although their advantage may simply be greater control over their existing commitments.

Emergencies and jobs that overrun make some uncertainty unavoidable. Flexible arrival windows can let technicians combine visits efficiently and keep prices low. Narrower windows may require spare capacity, raising prices enough to exclude customers who could afford the unpredictable service. Predictability is not free, and cheap access is not necessarily usable access.

A provider could reduce the average time between the opening of an arrival window and the technician’s arrival while widening that window. Most visits might happen earlier, with a few happening much later. Anyone unable to risk a missed visit must still reserve the wider interval. The average recorded wait falls; the commitments you must refuse in advance can increase.

You are being asked to keep the day available for ten minutes of work.