Fall Semester 1998 (Prof.
Steve Hackett)
1. List two valuable aspects of our world that
are not subject to scarcity:
Love, Spirituality
2. Consider the following generalized argument:
"It is more likely that an unemployed 25 year old with no
dependent children, mortgage, or professional career will risk
growing pot than a 40 year old lawyer with a prosperous local
practice, 3 young children, large mortgage, and political aspirations."
Describe the fundamental economic principle that exists as a consequence
of scarcity that can be employed to support this argument, and
very briefly explain why:
The 40 year old has a much higher opportunity
cost to growing pot because she loses a lot more if she is caught:
Being disbarred and unable to practice law, losing her substantial
lawyer income, destroying her political career, and impoverishing
her children.
3. a. Which general category of ethical system
evaluates the ethics of an action based on its intrinsic rightness,
rather than on the anticipated outcomes or consequences of the
action?
Deontological ethics
3. b. If a society has substantial diversity of
values and so cannot find common ground upon which to determine
the intrinsic rightness of an action, which ethical system provides
a method for weighing the beneficial and harmful consequences
of an action for each member of society, and then selecting an
action based on its net social consequences?
Utilitarianism
4. Suppose that a cohesive group of people committed
to the principles of Deep Ecology were to live apart from the
rest of society on a self-sustaining and ecologically balanced
organic farm. Name at least three aspects of their lives, interactions,
and life-support that are "economic" in the sense that
they involve scarcity and require an allocation choice?
- What to produce
- How to produce (e.g., who does what and when)
- How is the food allocated, how much is traded for things
they cannot make for themselves
5. It is sometimes asserted that the "economic"
element of ecosystem and natural resource management decisions
is restricted to the commercially valuable resources that can
be extracted, the value of which is (i) determined from market
processes and (ii) represents the opportunity cost of preservation
and conservation. Briefly but succinctly refute this argument,
explaining why the benefits of preservation and conservation,
while non-commercial, are still "economic."
Economics is about how to allocate things that
are scarce. Non-marketed aspects of the environment are valuable,
scarce, and have an opportunity cost. Thus wilderness preservation
has an economic value, as does commercial logging of that land.
6. If we were to apply the Pareto criterion to
the proposal by the Bureau of Land Management to close Black Sands
Beach (the southern entry point to the "Lost Coast"
region near the town of Shelter Cove) to off-road vehicle use,
which of the following must be true for this policy change
to be efficient relative to the status quo (circle all that MUST
be true):
a. The total utility gains to those made better
off (hikers, backpackers, nature watchers, wilderness enthusiasts)
must exceed the total utility losses to those made worse off (off-road
vehicle users).
If the new policy is Pareto efficient relative
to the status quo, it MUST be the case that the total "pie"
is larger, i.e., the gains to those made better off exceed the
losses to those made worse off. This way, the winners can compensate
the losers.
b. Money or other resources are provided by those
made better off so that off-road vehicle users are compensated
for the lost off-road recreational utility.
This condition is also necessary for the new
policy to be Pareto efficient relative to the status quo.
7. List at least 5 of the conditions required for
the existence of a well-functioning competitive market. Do not
include the words "efficient" or "equilibrium"
in your answer:
Many buyers and sellers, each small in size
relative to the overall market
No externalities
No cartels or collusion
Low transaction costs
Established and enforced ownership (property
rights)
Existence of a market institution
Sellers produce very similar products
Buyers and sellers are well-informed of price,
quality, availability, etc.
8. In what specific sense is a well-functioning
competitive market in equilibrium efficient? Your answer should
briefly address the sense in which efficient markets minimize
waste of the benefits that buyers and sellers derive from their
interaction:
The gains from trade are maximized. There are
no shortages or surpluses. Efficiency here means that the waste
of gains from trade or consumer + producer surplus is minimized.
9.a. Define a positive externality:
An unpaid-for benefit to members of society
that occurs as a byproduct of an exchange, such as between buyers
and sellers in markets.
9.b. Provide a clear example of a positive externality:
The benefits to society of parents immunizing
their children, which reduces the likelihood of the spread of
infectious disease.
9.c. Explain exactly why market systems underprovide
goods that generate substantial positive externalities:
Since there are unpaid-for benefits, market
demand only reflects the benefits or valuation to buyers, and
thus understates the true social value of the good. Too little
of the good generating the + externality is produced and consumed.
10.a. Define a negative externality:
An uncompensated cost borne by members of society
as a byproduct of an exchange relationship, such as between buyers
and sellers in a market.
10.b. Provide a clear example of a negative externality:
When firms avoid the private cost of cleanup
or cleaner production by emitting air, land, or water pollution.
10.c. Explain exactly why market systems overprovide
goods that generate substantial negative externalities:
When firms can freely pollute, they supply along
their marginal private cost curve rather than the marginal social
cost (private cost + external cost) curve. Thus market supply
is artificially shifted to the right (overstated), leading to
too much of the good produced that generates the negative externalities.
11. If supply is given by the expression P = 10
+ 0.5Q, and demand is given by the expression P = 210 - 0.25Q,
solve for each of the following in the context of a well-functioning
competitive market in equilibrium (attach a sheet showing your
work):
10+ .5Q = 210 - .25Q; Q = 266.67, P = $143.33
11.a. Price: $143.33 Quantity 266.67
11.b. Consumer surplus: 0.5*[210-143.33]*266.67
= $8889 Producer surplus: 0.5*[143.33-10]*266.67 = $17,778
12. If marginal external cost is $20 per unit of
the good or service produced in question 11 above, and firms are
allowed by society to pollute without regulation or penalty, then
solve for each of the following in the context of a market equilibrium
(attach a sheet showing your work):
w/o regulation, P = $143.33. W/ Pigouvian tax,
Q is set where 30 + .5Q = 210 - .25Q; Q =240, P = $150.
12.a. Implicit price subsidy to consumers: P(social
cost) - P(private cost) = 150 - 143.33 = $6.67
12.b. Total external cost = marginal external
cost * Q(private cost) = $20 * 266.67 = $5333.34
12.c. Deadweight loss = 0.5*[Q(private cost)
- Q(social cost)]*marginal external cost = 0.5*26.67*20 = $266.67