_________ occurs when marginal abatement costs equal marginal damages.
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_________ Policy means a government agency determines what is to be done and must have knowledge of marginal abatement costs and marginal damage functions.
___________Policy gets results from the interaction of many individual decision makers and individual interactions reveal information about marginal abatement costs and damage functions.
For a policy to be socially efficient it must not only be ______-______, but also balance costs with benefits
Technological change shifts the marginal abatement cost function _________.