In legal disputes regarding product liability, a risk-utility test is used to determine whether a product's design or warning is defective, thereby making the manufacturer liable for injuries caused by its product.
The manufacturer is held liable under the risk-utility test if the probability of injury times the gravity of injury under the current product design is more than the cost of an alternative reasonable design plus the diminished utility resulting from modifying the design. More simply, the court considers if the economic costs (determined from likely lawsuits) are higher than the cost of changing the product design (ex: installing a plastic guard) plus the loss of use of the product (ex: the new guard makes it harder to use the product). Generally, the simplest way to think of the risk-utility test is the Hand Formula applied to products.
The Third Restatement of the Law, Torts: Products Liability §2(b) [1] favors the risk-utility test over the Second Restatement of the Law, Torts §402(a), which favored the Consumer expectations test. §2(b) states, in part, "A product is defective when, at the time of sale or distribution...is defective in design. A product is defective in design when the foreseeable risks of harm posed by the product could have been reduced or avoided by the adoption of a reasonable alternative design by the seller or other distributor, or a predecessor in the commercial chain of distribution, and the omission of the alternative design renders the product not reasonably safe." [2]
Product liability is the area of law in which manufacturers, distributors, suppliers, retailers, and others who make products available to the public are held responsible for the injuries those products cause. Although the word "product" has broad connotations, product liability as an area of law is traditionally limited to products in the form of tangible personal property.
In law, a proximate cause is an event sufficiently related to an injury that the courts deem the event to be the cause of that injury. There are two types of causation in the law: cause-in-fact, and proximate cause. Cause-in-fact is determined by the "but for" test: But for the action, the result would not have happened. The action is a necessary condition, but may not be a sufficient condition, for the resulting injury. A few circumstances exist where the but for test is ineffective. Since but-for causation is very easy to show, a second test is used to determine if an action is close enough to a harm in a "chain of events" to be legally valid. This test is called proximate cause. Proximate cause is a key principle of Insurance and is concerned with how the loss or damage actually occurred. There are several competing theories of proximate cause. For an act to be deemed to cause a harm, both tests must be met; proximate cause is a legal limitation on cause-in-fact.
A tort, in common law jurisdiction, is a civil wrong that causes a claimant to suffer loss or harm, resulting in legal liability for the person who commits the tortious act. It can include intentional infliction of emotional distress, negligence, financial losses, injuries, invasion of privacy, and many other things.
In criminal and civil law, strict liability is a standard of liability under which a person is legally responsible for the consequences flowing from an activity even in the absence of fault or criminal intent on the part of the defendant.
This article addresses torts in United States law. As such, it covers primarily common law. Moreover, it provides general rules, as individual states all have separate civil codes. There are three general categories of torts: intentional torts, negligence, and strict liability torts.
In the United States, the calculus of negligence, also known as the Hand rule, Hand formula, or BPL formula, is a term coined by Judge Learned Hand and describes a process for determining whether a legal duty of care has been breached. The original description of the calculus was in United States v. Carroll Towing Co., in which an improperly secured barge had drifted away from a pier and caused damage to several other boats.
In law, liable means "responsible or answerable in law; legally obligated". Legal liability concerns both civil law and criminal law and can arise from various areas of law, such as contracts, torts, taxes, or fines given by government agencies. The claimant is the one who seeks to establish, or prove, liability.
In tort law, a duty of care is a legal obligation which is imposed on an individual requiring adherence to a standard of reasonable care while performing any acts that could foreseeably harm others. It is the first element that must be established to proceed with an action in negligence. The claimant must be able to show a duty of care imposed by law which the defendant has breached. In turn, breaching a duty may subject an individual to liability. The duty of care may be imposed by operation of law between individuals who have no current direct relationship but eventually become related in some manner, as defined by common law.
English tort law concerns the compensation for harm to people's rights to health and safety, a clean environment, property, their economic interests, or their reputations. A "tort" is a wrong in civil, rather than criminal law, that usually requires a payment of money to make up for damage that is caused. Alongside contracts and unjust enrichment, tort law is usually seen as forming one of the three main pillars of the law of obligations.
The attractive nuisance doctrine applies to the law of torts in some jurisdictions. It states that a landowner may be held liable for injuries to children trespassing on the land if the injury is caused by an object on the land that is likely to attract children. The doctrine is designed to protect children who are unable to appreciate the risk posed by the object, by imposing a liability on the landowner. The doctrine has been applied to hold landowners liable for injuries caused by abandoned cars, piles of lumber or sand, trampolines, and swimming pools. However, it can be applied to virtually anything on the property of the landowner.
In tort law, the standard of care is the only degree of prudence and caution required of an individual who is under a duty of care.
In legal disputes regarding product liability, a consumer expectations test is used to determine whether the product is negligently manufactured or whether a warning on the product is defective. Under this test, the product is considered defective if a reasonable consumer would find it defective. As an example, a reasonable consumer might find exposed blades on a lawnmower, without plastic guards that could be installed for pennies, to be defective because the risk of not having the plastic guards is higher than the costs of installing those guards.
Comparative responsibility is a doctrine of tort law that compares the fault of each party in a lawsuit for a single injury. Comparative responsibility may apply to intentional torts as well as negligence and encompasses the doctrine of comparative negligence.
Causation is the "causal relationship between the defendant's conduct and end result". In other words, causation provides a means of connecting conduct with a resulting effect, typically an injury. In criminal law, it is defined as the actus reus from which the specific injury or other effect arose and is combined with mens rea to comprise the elements of guilt. Causation only applies where a result has been achieved and therefore is immaterial with regard to inchoate offenses.
Occupiers' liability is a field of tort law, codified in statute, which concerns the duty of care owed by those who occupy real property, through ownership or lease, to people who visit or trespass. It deals with liability that may arise from accidents caused by the defective or dangerous condition of the premises. In English law, occupiers' liability towards visitors is regulated in the Occupiers' Liability Act 1957. In addition, occupiers' liability to trespassers is provided under the Occupiers' Liability Act 1984. Although the law largely codified the earlier common law, the difference between a "visitor" and a "trespasser", and the definition of an "occupier" continue to rely on cases for their meaning.
The following outline is provided as an overview of and introduction to tort law:
The American Restatement of Torts, Second is a treatise issued by the American Law Institute. It summarizes the general principles of common law United States tort law. The volumes covering torts are part of the Second Restatements of the Law series.
Indiana Harbor Belt Railroad Co. v. American Cyanamid Co., 916 F.2d 1174 is a decision of the United States Court of Appeals for the Seventh Circuit authored by Judge Richard Posner. The case has subsequently become a staple of first year Torts courses taught in American law schools, where the case is used to address the question of when it is better to use negligence liability or strict liability.
Increases in the use of autonomous car technologies are causing incremental shifts in the responsibility of driving, with the primary motivation of reducing the frequency of traffic collisions. Liability for incidents involving self-driving cars is a developing area of law and policy that will determine who is liable when a car causes physical damage to persons or property. As autonomous cars shift the responsibility of driving from humans to autonomous car technology, there is a need for existing liability laws to evolve in order to reasonably identify the appropriate remedies for damage and injury. As higher levels of autonomy are commercially introduced, the insurance industry stands to see higher proportions of commercial and product liability lines, while personal automobile insurance shrinks.
Greenman v. Yuba Power Products, Inc, was a California torts case in which the Supreme Court of California dealt with the torts regarding product liability and warranty breaches. The primary legal issue of the case was to determine whether a manufacturer is strictly liable in tort when an article he places on the market proves to have a defect that causes injury to a human being. The case was originally heard in a San Diego district court where the verdict was against the manufacturer. This verdict was appealed by the manufacturer to the Supreme Court of California which was presided by Gibson, C. J., Schauer, J., McComb, J., Peters, J., Tobriner, J., and Peek, J., and the opinion was delivered by Judge Roger J Traynor.
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