The magnitude of the effects can also be determined from these results. A flight on a monopoly
route is on average 1.35 minutes later than a similar flight on a competitive route, and if the carrier
has 22% greater origin or destination market share the average delay on the flight increases by one
minute. Computing derivatives using the estimates from Table IV indicates that a particular flight is
between 1 and 2 percent more likely to be late if it is operated by the only carrier that flies between
the two cities.