Airlines overbook flights because many passengers simply don't show up for their reservations. When more passengers than expected show up for a flight, however, this strategy results in some travelers being "bumped" and forced to take a later flight. Bumped passengers are typically compensated with a free ticket. Airlines overbook flights because of which characteristic of services?

		intangibility
		inseparability
		inconsistency
		variability
		perishability

Many people joined LinkedIn because it offers a large community of professionals for career networking. We call this phenomenon ______. It exists if the value a consumer derives from network increases when there are more users of this network.

		Direct Network Externalities
		Indirect network externalities
		Herding Behavior
		Information spillover