Given the task definition and input, reply with output. Given a passage and a question, find the answer to the question based on the passage. The answer should consist of only one word that lies in the span of only one of the sentences in the passage.

Paragraph: A deadweight loss , also known as excess burden or allocative inefficiency , is a loss of economic efficiency that can occur when equilibrium for a good or a service is not achieved . That can be caused by monopoly pricing in the case of artificial scarcity , an externality , a tax or subsidy , or a binding price ceiling or price floor such as a minimum wage .
Question: deadweight loss measures the inefficiency as the loss of


equilibrium