Answer:
Corrective taxes bring the allocation of resources closer to the social optimum and, thus, improve economic efficiency.
Explanation:
A corrective tax is a tax imposed by the government to correct negative externalities. They are different from regular taxes, in the way that they instead of creating an inefficient allocation of resources they bring the allocation of resources closer to the social optimum and, thus, improve economic efficiency.
These taxes increase the cost of producing the goods that are creating negative externalities thus reducing its production. Unlike other taxes, corrective taxes do not create dead weight loss but reduce it.