Unit 6: Market Failure & Government
Micro · Unit 6 · Paper 2

Market Failure & Government unit test

A test on this unit alone, marked as a percentage and a letter grade — for the test your class is actually sitting, rather than for May. Answer everything, then submit once: seeing the answer to question 3 before attempting question 4 makes the final percentage meaningless.

Each paper is built from this unit’s 46 terms and is the same for everyone, so a teacher can assign “Unit 6, Paper 2” and every student sits the identical test. Multiple choice is marked objectively; the written sections you mark yourself against the model answer and rubric.
Suggested time 32 min 29 points0/17 attempted
1

MSB and MSC

2

Moral hazard

3

Pigouvian tax

4

Common resource

5

Positive externality direction

6

Income versus wealth

7

The two quantities

8

Why a corrective tax reduces deadweight loss

9

Positive externality

10

Gini coefficient

11

Negative externality direction

12

Asymmetric information

Short answer 1. Define or explain: Rivalry and excludability

3 pts

Short answer 2. Define or explain: Club good

3 pts

Short answer 3. Define or explain: Coase theorem

3 pts

Short answer 4. Define or explain: Why command-and-control costs more

3 pts

Free response

5 pts

The market for a chemical produced in the town of Weyburn generates significant water pollution that harms downstream communities. The chemical is currently produced in an unregulated competitive market.

A. Describe precisely what a correctly labeled graph of this market would show, including the axis labels, the marginal private cost and marginal social cost curves, the demand curve, and the market quantity Q_m and the socially optimal quantity Q_s.

B. Indicate whether the market quantity is greater than, less than, or equal to the socially optimal quantity.

C. Identify the area of deadweight loss on your graph.

D. Identify a per-unit tax that would achieve the socially optimal quantity, and explain how it works.

E. Identify one reason a government might have difficulty setting the tax at the correct level.