Title: Econ 522 Economics of Law
1Econ 522Economics of Law
Dan Quint Fall 2012 Lecture 6
2Our story so far on property law
- Coase absent transaction costs, if property
rights are complete and tradable, well get
efficiency through voluntary negotiation - So we can always get efficient outcomes
automatically - provided there are no transaction costs
- But what to do when there are?
3Different types/sources of transaction costs
- Search costs
- Bargaining costs
- Asymmetric information/adverse selection
- Private information/not knowing each others
threat points - Uncertainty about property rights/threat points
- Large numbers of buyers/sellers holdout,
freeriding - Hostility
- Enforcement costs
4Two normative approaches to the law
- Normative Coase aim to minimize transaction
costs - Normative Hobbes aim to allocate rights
efficiently (or minimize the need for
bargaining/trade) - How to choose between the two?
- When transaction costs are low and information
costs high, design law to minimize transaction
costs - What transaction costs are high and information
costs are low, design law to allocate rights
efficiently
5Two normative approaches to the law
- Defaulting to the normative Coase approach means
relying on bargaining to reallocate rights
efficiently - Is it realistic to think this will work in real
life? - Is it realistic to think this would work in a
room full of undergrad econ majors?
6An experiment onCoasian bargaining
7Experiment Coasian bargaining
- Round 1 (full information)
- Ten people, five of them have a poker chip to
start - Each person is given a personal value for a poker
chip - At the end of the round, thats how much you can
trade in a chip for - Purple chip is worth that number, red chip is
worth 2 x your number - So if your number is 6 and you end up with a
purple chip, Ill give you 6 for it if you end
up with a red chip, Ill give you 12 for it - Each person can only sell back one chip
- Your number is on your nametag (common knowledge)
8Experiment Coasian bargaining
- Round 2 (private information)
- Ten people, five of them have a poker chip to
start - Each person is given a personal value for a poker
chip - At the end of the round, thats how much you can
trade in a chip for - Purple chip is worth that number, red chip is
worth 2 x your number - So if your number is 6 and you end up with a
purple chip, Ill give you 6 for it if you end
up with a red chip, Ill give you 12 for it - Each person can only sell back one chip
- Only you know your number
9Experiment Coasian bargaining
- Round 3 (uncertainty)
- Six people, three poker chips
- Value of each chip is determined by a die roll
- If seller keeps the chip, its worth 2 x roll of
the die - If new buyer buys chip, its worth 3 x roll of
the die - No contingent trades buyer must pay cash
- Nobody sees the die roll until the end
10Experiment Coasian bargaining
- Round 4 (asymmetric information)
- Six people, three poker chips
- Value of each chip is determined by a die roll
- If seller keeps the chip, its worth 2 x roll of
the die - If new buyer buys chip, its worth 3 x roll of
the die - No contingent trades buyer must pay cash
- Seller sees the die roll initially, buyer does not
11Back to work
12Last week what things should be privately owned?
- Public Goods
- non-rivalrous, non-excludable
- tend to be underprovided when privately supplied
- tend to have high transaction costs (many people
involved) - suggests public provision/regulation preferable
- Private goods
- rivalrous, excludable
- tend to be overexploited when publicly owned
- tend to have low transaction costs (one buyer,
one seller) - suggests private ownership preferable
13A different view transaction costs
- Clean air
- Large number of people affected ? transaction
costs high - ? injunctive relief unlikely to work well
- Still two options
- One give property owners right to clean air,
protected by damages - Two public regulation
- Argue for one or the other by comparing costs of
each - Damages costs are legal cost of lawsuits or
pretrial negotiations - Regulation administrative costs, error costs if
level is not chosen correctly
14Another question choosing a remedy for property
rights violations
- Injunctive relief court clarifies right, bars
future violation violations are punished as
crimes (but right is tradable) - Damages court determines how much harm was done
by violation, awards payment to injuree - Coase should be equally efficient if there are
no transaction costs - But in real world, which is more efficient?
15Comparing injunctive relief todamages example
E profits 1,000L profits 300 ? 100E
prevention 500L prevention 100
- Electric company E emits smoke, dirties the
laundry at a laundromat L next door - E earns profits of 1,000
- Without smoke, L earns profits of 300
- Smoke reduces Ls profits from 300 to 100
- E could stop polluting at cost 500
- L could prevent the damage at cost 100
16First, we consider thenon-cooperative outcomes
E profits 1,000L profits 300 ? 100E
prevention 500L prevention 100
- Polluters Rights (no remedy)
- E earns 1,000
- L installs filters, earns 300 100 200
- Laundromat has right to damages
- E earns 1,000, pays damages of 200 ? 800
- L earns 100, gets damages of 200 ? 300
- Laundromat has right to injunction
- E installs scrubbers, earns 1,000 500 500
- L earns 300
17Noncooperative payoffs
E profits 1,000L profits 300 ? 100E
prevention 500L prevention 100
Injunction
Damages
Polluters Rights
500
800
1,000
E payoff(non-coop)
300
300
200
L payoff(non-coop)
800
1,100
1,200
Combined payoff (non-coop)
18What about with bargaining?
E profits 1,000L profits 300 ? 100E
prevention 500L prevention 100
Injunction
Damages
Polluters Rights
500
800
1,000
E payoff(non-coop)
300
300
200
L payoff(non-coop)
800
1,100
1,200
Combined payoff (non-coop)
400
100
0
Gains from Coop
700
850
1,000
E payoff (coop)
800 ½ (100)
500 ½ (400)
500
350
200
L payoff (coop)
300 ½ (100)
300 ½ (400)
1,200
1,200
1,200
Combined
19Comparing injunctions to damages
- Injunctions are generally cheaper to administer
- No need for court to calculate amount of harm
done
20Comparing injunctions to damages
- Injunctions are generally cheaper to administer
- No need for court to calculate amount of harm
done - Damages are generally more efficient when private
bargaining is impossible - Three possibilities injurer prevents harm,
injuree prevents harm, nobody prevents harm
(someone pays for it) - Efficiency cheapest of the three
- Damages injurer can prevent harm or pay for it
- injurer chooses whichever is cheapest
- Injunction injurer can only prevent harm
21So now we know
- Any rule leads to efficient outcomes when TC are
low - Injunctions are cheaper to implement
- Damages lead to more efficient outcomes when TC
high - Leads Calabresi and Melamed to the following
conclusion - When transaction costs are low, a property
rule (injunctive relief) is more efficient - When transaction costs are high, a liability
rule (damages) is more efficient
22Exactly agrees with our earlier principle
- Transactions costs low design law to facilitate
trade - Property rule does this clarifies right, allows
trade - Transaction costs high design law to minimize
losses due to failures of private bargaining - Liability rule does this gives injurer right to
violate entitlement when efficient, even without
prior consent
23High transaction costs ? damagesLow transaction
costs ? injunctive relief
Private bargaining is unlikely to succeed in
disputes involving a large number of
geographically dispersed strangers because
communication costs are high, monitoring is
costly, and strategic behavior is likely to
occur. Large numbers of land owners are
typically affected by nuisances, such as air
pollution or the stench from a feedlot. In these
cases, damages are the preferred remedy. On the
other hand, property disputes generally involve a
small number of parties who live near each other
and can monitor each others behavior easily
after reaching a deal so injunctive relief is
usually used in these cases. (Cooter and
Ulen)
24A different view of the high-transaction-costs
case
- When transaction costs preclude bargaining, the
court should protect a right by an injunctive
remedy if it knows which party values the right
relatively more and it does not know how much
either party values it absolutely. - Conversely, the court should protect a right by
a damages remedy if it knows how much one of the
parties values the right absolutely and it does
not know which party values it relatively more. -
- (Cooter and Ulen)
25Low transaction costs ? injunctive relief
- Cheaper for the court to administer
- With low transaction costs, we expect parties to
negotiate privately if the right is not assigned
efficiently - But do they really?
- Ward Farnsworth (1999), Do Parties to Nuisance
Cases Bargain After Judgment? A Glimpse Inside
The Cathedral - 20 nuisance cases no bargaining after judgment
- In almost every case the lawyers said that
acrimony between the parties was an important
obstacle to bargaining - Frequently the parties were not on speaking
terms... - The second recurring obstacle involves the
parties disinclination to think of the rights at
stake as readily commensurable with cash.
26So, do we buy it?
- Coase relies on parties being able to negotiate
privately if the right is not assigned
efficiently - Low-TC case injunctions more efficient, assuming
bargaining works if wrong party is awarded the
right - But does it work?
- Paper by Farnsworth shows no bargaining after 20
nuisance cases - Our experiment showed various transaction costs
that could be a problem private information,
uncertainty, asymmetric information
27Third way to protect an entitlement
inalienability
- Inalienability when an entitlement is not
transferable or saleable - Allocative externalities(enriched uranium)
28Third way to protect an entitlement
inalienability
- Inalienability when an entitlement is not
transferable or saleable - Allocative externalities(enriched uranium)
- Indirect externalities(human organs)
29Third way to protect an entitlement
inalienability
- Inalienability when an entitlement is not
transferable or saleable - Allocative externalities(enriched uranium)
- Indirect externalities(human organs)
- Paternalism
source http//www.shanghaidaily.com/nsp/National
/2011/06/02/Boy2Bregrets2Bselling2Bhis2Bkidney
2Bto2Bbuy2BiPad/
30How do we design an efficient property law system?
what can be privately owned? what can an owner
do? how are property rights established? what
remedies are given?
31What can an owner do with his property?
- Principle of maximum liberty
- Owners can do whatever they like with their
property, provided it does not interfere with
other property or rights - That is, you can do anything you like so long as
it doesnt impose an externality (nuisance) on
anyone else
32How do we design an efficient property law system?
what can be privately owned? what can an owner
do? how are property rights established? what
remedies are given?
33Fugitive property
- Hammonds v. Central Kentucky Natural Gas Co.
- Central Kentucky leased land lying above natural
gas deposits - Geological dome lay partly under Hammonds land
- Central Kentucky drilled down and extracted the
gas Hammonds sued, claiming some of the gas was
his - (Anybody see There Will Be Blood?)
Hammonds
Central KY
34Two principles for establishing ownership
- First Possession
- nobody owns fugitive property until someone
possesses it - first to capture a resource owns it
- Central Kentucky would own all the gas
- Tied Ownership
- ownership of fugitive property tied to something
else (here, surface) - so ownership already determined before resource
is extracted - Hammonds would own some of the gas, since under
his land - principle of accession a new thing is owned by
the owner of the proximate or prominent property
35First Possession versus Tied Ownership
- First Possession
- simpler to apply easy to determine who
possessed property first - incentive to invest too much to early in order to
establish ownership - example 100 of gas, two companies drilling fast
or slow - drilling slowly costs 5, drilling fast costs 25
- drill same speed ? each gets half the gas, one
drills fast ? 75/25
Firm 2
Slow
Fast
45, 45
20, 50
Slow
Firm 1
50, 20
25, 25
Fast
36First Possession versus Tied Ownership
- First Possession
- simpler to apply easy to determine who
possessed property first - incentive to invest too much to early in order to
establish ownership - Tied Ownership
- encourages efficient use of the resource
- but, difficulty of establishing and verifying
ownership rights
Firm 2
Slow
Fast
45, 45
45, 25
Slow
Firm 1
25, 45
25, 25
Fast
37This brings us to the following tradeoff
- Rules that link ownership to possession have the
- advantage of being easy to administer,
- and the disadvantage of providing incentives for
- uneconomic investment in possessory acts.
- Rules that allow ownership without possession
have - the advantage of avoiding preemptive investment
- and the disadvantage of being costly to
administer.
38A nice historical example the Homestead Act of
1862
- Meant to encourage settlement of the Western U.S.
- Citizens could acquire 160 acres of land for
free, provided - head of a family or 21 years old
- for the purpose of actual cultivation, and not
for the use or benefit of someone else - had to live on the claim for 6 months and make
suitable improvements - Basically a first possession rule for land by
living on the land, you gained ownership of it - Friedman caused people to spend inefficiently
much to gain ownership of the land
39Friedman on the Homestead Act of 1862
The year is 1862 the piece of land we are
considering is too far from railroads, feed
stores, and other people to be cultivated at a
profit. The efficient rule would be to start
farming the land the first year that doing so
becomes profitable, say 1890. But if you set out
to homestead the land in 1890, you will get an
unpleasant surprise someone else is already
there. If you want to get the land you will
have to come early. By farming it at a loss for
a few years you can acquire the right to farm it
thereafter at a profit.
40Friedman on the Homestead Act of 1862
How early will you have to come? Assume the
value of the land in 1890 is going to be 20,000,
representing the present value of the profit that
can be made by farming it from then on. Further
assume that the loss from farming it earlier than
that is 1,000 a year. If you try to homestead
it in 1880, you again find the land already
taken. Someone who homesteads in 1880 pays
10,000 in losses for 20,000 in real estate
not as good as getting it for free, but still an
attractive deal. The land will be claimed about
1870, just early enough so that the losses in the
early years balance the later gains. It follows
that the effect of the Homestead Act was to wipe
out, in costs of premature farming, a large part
of the land value of the United States.
41So, what does an efficient property law system
look like?
- What things can be privately owned?
- Private goods are privately owned, public goods
are publicly provided - What can owners do with their property?
- Maximum liberty
- How are property rights established?
- (Tradeoff between first possession and tied
ownership more examples to come) - What remedies are given?
- Injunctions when transaction costs are low
damages when transaction costs are high
42Sequential Rationality(probably wont get to
this)
43Dynamic games and sequential rationality
- Game theory weve seen so far static games
- everything happens at once
- (nobody observes another players move before
deciding how to act) - Dynamic games
- one player moves first
- second player learns what first player did, and
then moves
44Dynamic games
FIRM 1 (entrant)
Enter
Dont Enter
FIRM 2 (incumbent)
(0, 30)
Accommodate
Fight
(10, 10)
(-10, -10)
- A strategy is one players plan for what to do at
each decision point he/she acts at - In this case player 1s possible strategies are
enter and dont, player 2s are accommodate
and fight
45We can put payoffs from this game into a payoff
matrix
Firm 2s Action
Accommodate
Fight
10, 10
-10, -10
Enter
Firm 1s Action
0, 30
0, 30
Dont Enter
- We can look for equilibria like before
- we find two (Enter, Accommodate), and (Dont
Enter, Fight) - question are both equilibria plausible?
- sequential rationality
44
46Dynamic games
- In dynamic games, we look for Subgame Perfect
Equilibria - players play best-responses in the game as a
whole, but also in every branch of the game tree - We find Subgame Perfect Equilibria by backward
induction - start at the bottom of the game tree and work our
way up
FIRM 1 (entrant)
Enter
Dont Enter
FIRM 2 (incumbent)
(0, 30)
Accommodate
Fight
(10, 10)
(-10, -10)
47The key assumption behind subgame perfect
equilibrium common knowledge of rationality
- Firm 1 knows firm 2 is rational
- So he knows that if he enters, firm 2 will do the
rational thing accommodate - So we enters, counting on firm 2 to accommodate
- This is the idea of sequential rationality the
assumption that, whatever I do, I can count on
the players moving after me to behave rationally
in their own best interest