V. Torts
A. The
economics of tort liability
Basic analysis (cont'd.)
Strict liability makes the
tort system an insurance system
Manufacturers build expected liability costs into the prices of their
products
Those costs include litigation costs, so a pretty expensive insurance
system
1. Complication 1: moral hazard
With strict liability for damages, how does a potential victim feel about being injured compared to not being injured?
So how careful will a potential victim be?
strict
liability for damages provides no incentive for potential victims to take precautions
if victim precaution is
not feasible, then strict precaution is efficient
How do we make
car owners choose the efficient level of victim precaution?
i.e., make them internalize the expected harm to themselves
no liability for damages provides incentives for the victim to choose the efficient level of precaution
So how can people
get compensated for their losses?
Insurance contracts: we do that for many related purposes now: auto
insurance, homeowners' insurance, life insurance, disability insurance
If you suffer a loss, it doesn't matter whether someone
wronged you or not--you are still worse off than before
Insurance offsets at least part of the loss
result is a contradiction: with no liability, the injurer will not take any precautions
How do we get both sides to take precautions?
negligence = failure to
take all cost-justified precautions negligence rule: an injurer is liable only if negligent result: |
![]() |
![]() |
2. Complication 2: unobservable precautions
What if the efficiency of some
classes of precautions is observable by the actor but not the court?
The usual example is "activity level." The court may be able
to observe how many trips drivers take, but not how much each trip is worth.
Another example would be how much attention drivers pay to their
driving.
Under a
negligence rule, you take the optimal level of the observable precautions you will therefore not be found negligent you therefore ignore costs to other parties in choosing the level of the unobservable precautions. First-best remedy: that's how criminal law works Advantage:
efficient precautions by both sides |
![]() |
![]() |
When we convert the damage payment into a fine we also convert the offense from a tort to a crime and must shift the enforcement mechanism from private law suits to enforcement by the state (F204)
Second-best
remedy: assign liability for negligence to the party with the fewest options for
unobservable
precautions.
the other party will have
an incentive to take all efficient precautions
the only loss will be the unobservable precautions by the party with
the fewer options to take them
Stated in the reverse: [I]f
Posner's conjecture that the common law is efficient is correct, courts should tend to
impose strict liability for torts where potential tortfeasors vary a great deal.... I do
not know whether such a pattern exists.... (F205)
Option 1: negligence
makes the victim take all efficient precautions
Option 2: strict liability with contributory negligence makes the injurer take
all efficient precautions
Ex: drugs
manufacturers have a lot more information about drug safety
consumers who do not follow warning labels are negligent and cannot
collect for adverse effects
if you follow directions and still get injured, then you have a case
it reverses negligent party: the drug company pays unless the customer
was negligent
Recap:
Observable behavior = care
Unobservable behavior = activity level
Injurer chooses efficient... | Victim chooses efficient... | |||
Care | Activity level | Care | Activity level | |
No liability | No | No | Yes | Yes |
Negligence | Yes | No | Yes | Yes |
Strict liability with contributory negligence |
Yes | Yes | Yes | No |
Strict liability | Yes | Yes | No | No |
3. The economics of tort litigation
a. Why is anyone found liable for negligence?
With perfect information, this would never happen, but we lack perfect information
Injurer error (true negligence)
Court error (false negligence)
Court errors have an uncertain effect on incentives --it depends on what sort of errors the court makes, and we don't know the answer to that question
All parties will find it in their interest, if an accident occurs and someone is sued, to spend resources trying to generate court errors in their favor. (F204)
b. litigation costs under alternative liability rules
Negligence could lead to either more or less litigation cost than strict liability
Why higher with negligence?
Why lower with negligence?
V. Torts
B. Harm
Winn Dixie Stores, Inc. (d) v. Benton (p)Winn Dixie Stores, Inc. (d) v. Benton (p) 576 So.2d 359 (1991)
illustrates a standard tort case
2 parties:
victim
injurer = tortfeasor
Impossible to isolate the 4 ingredients we are examining--harm, cause, liability, and damages--since by definition we must have them all in order to have a tort, but this case provides a good illustration of a basic harm
A harm moves you to a lower indifference curve
Harms are not always torts1. With a negligence rule, a tort => a harm in which the injurer does not exercise "reasonable care"
Analogous to nuisances and external costs: Per Coase: "to quote Posser on Torts, a person may make use of his own property or . . . conduct his own affairs at the expense of some harm to his neighbors. He may operate a factory whose noise and smoke cause some discomfort to others, so long as he keeps within reasonable bounds. It is only when his conduct is unreasonable, in the light of its utility and the harm which results [italics added], that it becomes a nuisance." (Coase 11)
Likewise with torts, some of the harms we suffer at the hands of others turn out to be efficient
This option for escaping from liability encourages the victim to exercise reasonable care too.
an inefficient harm = a "wrongful" harm = a tort