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A researcher introduces a new mathematics program in one school district and uses a neighboring district as a no-treatment control group.Before the program begins,the students in both districts are given a standardized mathematics test.After the program is in place for six months,the students are tested again and the researcher compares the before and after scores for the two groups.This research study is classified as ____.
Marginal External Damages
Additional harm or cost imposed on society or a third party that is not accounted for by the producer or consumer of a good or service.
Marginal Social Cost
The total cost to society of producing an additional unit of a good or service, including both the cost to the producer and the cost to society of any environmental or other externalities.
Monopoly
Market with only one seller.
Pollution Fee
A charge imposed on entities that emit pollutants, aimed at reducing environmental damage by incorporating the cost of pollution into the emitter's financial calculations.
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