What is included in MB that is not included in either M1 or M2?

If the number of employed workers in an economy is 8 million, the number of potential workers in the economy is 12 million, and the number of adults not in the labor force is 1 million, the number of unemployed people in the economy will equal:

A) 3 million. B) 5 million. C) 1 million. D) 7 million.

The above figure shows the market for fertilizer. When fertilizer is applied to lawns, it runs off into neighboring streams and ponds, killing fish and creating an external cost

a) What is the equilibrium price and quantity of fertilizer in an unregulated, competitive market? b) What is the efficient quantity of fertilizer? c) Suppose government imposes a tax equal to the marginal external cost. What is the equilibrium price paid by consumers and the equilibrium quantity after implementation of the tax? d) At the output level in part (c), how much is the tax? e) How much tax revenue does government collect? f) What is the deadweight loss borne by society if the externality is left uncorrected?