Consider an economy with three consumers, each with a marginal benefit for a public good of MB = 10–q. What is society’s marginal benefit (MSB) for the public good? Group of answer choices MSB = 10-3q MSB = 30-3q MSB = 10-(1/3)q MSB = 30-(1/3)q None of the above
Question
Consider an economy with three consumers, each with a marginal benefit for a public good of MB = 10–q. What is society’s marginal benefit (MSB) for the public good? Group of answer choices
MSB = 10-3q
MSB = 30-3q
MSB = 10-(1/3)q
MSB = 30-(1/3)q
None of the above
Solution
The marginal social benefit (MSB) for a public good is the sum of the marginal benefits (MB) of all individuals in the economy. Given that each individual has a marginal benefit of MB = 10–q, for three individuals, the total marginal benefit would be 3*(10-q) = 30-3q.
So, the correct answer is: MSB = 30-3q.
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