A shift from S1 to S2 reflects the change that happens when a negative externality is taken into account. A shift from D1 to D2 reflects the change that happens when a positive externality is taken into account.Refer to the above figures. A negative externality existed but has been corrected. Price and quantity will be

A. P1 and Q1.
B. P2 and Q2.
C. P3 and Q3.
D. P4 and Q4.


Answer: B

Economics

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