Econ 522 Economics of Law - PowerPoint PPT Presentation

About This Presentation
Title:

Econ 522 Economics of Law

Description:

Title: Patent Pools Author: Dan Q Last modified by: dquint Created Date: 7/29/2006 7:59:30 PM Document presentation format: On-screen Show Company – PowerPoint PPT presentation

Number of Views:102
Avg rating:3.0/5.0
Slides: 48
Provided by: DanQ
Category:

less

Transcript and Presenter's Notes

Title: Econ 522 Economics of Law


1
Econ 522Economics of Law
Dan Quint Fall 2012 Lecture 6
2
Our 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?

3
Different 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

4
Two 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

5
Two 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?

6
An experiment onCoasian bargaining
7
Experiment 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)

8
Experiment 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

9
Experiment 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

10
Experiment 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

11
Back to work
12
Last 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

13
A 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

14
Another 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?

15
Comparing 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

16
First, 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

17
Noncooperative 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)
18
What 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
19
Comparing injunctions to damages
  • Injunctions are generally cheaper to administer
  • No need for court to calculate amount of harm
    done

20
Comparing 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

21
So 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

22
Exactly 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

23
High 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)
24
A 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)

25
Low 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.

26
So, 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

27
Third way to protect an entitlement
inalienability
  • Inalienability when an entitlement is not
    transferable or saleable
  • Allocative externalities(enriched uranium)

28
Third way to protect an entitlement
inalienability
  • Inalienability when an entitlement is not
    transferable or saleable
  • Allocative externalities(enriched uranium)
  • Indirect externalities(human organs)

29
Third 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/
30
How 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?
31
What 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

32
How 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?
33
Fugitive 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
34
Two 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

35
First 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
36
First 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
37
This 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.

38
A 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

39
Friedman 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.
40
Friedman 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.
41
So, 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

42
Sequential Rationality(probably wont get to
this)
43
Dynamic 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

44
Dynamic 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

45
We 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
46
Dynamic 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)
47
The 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
Write a Comment
User Comments (0)
About PowerShow.com