Albert,Betty,Christine and David are all very good students.When they hold their study sessions,they often discuss very difficult concepts in great detail.Christine's roommate,Elizabeth,who takes completely different classes,still learns from the discussions of the others.This is the case of a/an _____,which _____ a _____.

Question

Quizplus · Accepted Answer

This situation describes a positive externality, where Elizabeth, a third party, benefits from the study sessions without being directly involved.

Albert,Betty,Christine and David Are All Very Good Students