Suppose that you are an economic-policy advisor. Environmental groups are pressuring you to implement the highest-possible carbon tax while industry groups are pressuring you to implement no carbon tax at all. Both argue that their position makes more sense economically. In fact, the most efficient tax level is: Group of answer choices a tax equal to the social cost. a tax equal to the external cost. the highest possible tax. no tax at all.

a tax equal to the external cost.

Explanation:

The most efficient taxes are those that will be equal to the external cost of production that a company is imposing on the environment. This means in effect that a company is paying for the pollution it is inflicting on the environment.

Companies polluting less would pay less and those polluting more would pay more. This is the logic of a tax equal to the external cost.

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