Negligence: Economic Loss

Economic loss refers to financial loss that is not consequent on any physical injury to the claimant or physical damage to the claimant's property. The law of negligence draws a sharp distinction between pure economic loss (which is generally not recoverable) and consequential economic loss (which is recoverable). A special exception exists for negligent misstatement, where pure economic loss may be recovered if the claimant can establish a "special relationship" with the defendant. This lesson examines these categories, the key cases, and the policy reasons behind the restrictive approach.

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Types of Economic Loss

flowchart TD
    A["ECONOMIC LOSS"] --> B["Consequential<br/>Economic Loss"]
    A --> C["Pure Economic<br/>Loss"]
    B --> D["Financial loss flowing<br/>from physical injury<br/>or property damage<br/>— RECOVERABLE"]
    C --> E["Financial loss with<br/>NO physical injury<br/>or property damage<br/>— NOT generally<br/>recoverable"]
    C --> F["EXCEPTION:<br/>Negligent Misstatement<br/>(Hedley Byrne v Heller)"]
    F --> G["Recoverable if<br/>special relationship<br/>established"]

    style A fill:#1a5276,color:#fff
    style D fill:#27ae60,color:#fff
    style E fill:#c0392b,color:#fff
    style G fill:#e67e22,color:#fff

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Consequential Economic Loss

Consequential economic loss (also called "parasitic" economic loss) is financial loss that flows from physical injury to the claimant's person or physical damage to the claimant's property. This type of economic loss is recoverable as part of the normal damages in a negligence claim.

Examples:

• A worker is injured by the defendant's negligence and loses earnings while recovering → the lost earnings are consequential economic loss and are recoverable
• The defendant negligently damages the claimant's vehicle, and the claimant loses income because they cannot use the vehicle for work → the lost income is consequential economic loss

This is relatively uncontroversial. The financial loss is directly linked to and flows from the physical harm, so it is natural to include it in the compensation.

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Pure Economic Loss

Pure economic loss is financial loss that is not connected to any physical injury to the claimant or physical damage to the claimant's property. The general rule is that pure economic loss is not recoverable in the tort of negligence.

Key Definition: Pure economic loss is financial loss suffered by the claimant that does not arise from physical injury to the claimant's person or physical damage to the claimant's property. It is generally not recoverable in negligence.

Spartan Steel & Alloys Ltd v Martin & Co (Contractors) Ltd [1973]

Aspect	Detail
Facts	The defendants negligently cut an electricity cable, causing a power cut to the claimant's factory. The claimant suffered three types of loss: (1) damage to metal that was being processed in a furnace at the time of the power cut (physical damage); (2) loss of profit on that particular batch of metal (consequential economic loss flowing from the physical damage); (3) loss of profit on four further batches of metal that could have been processed during the power cut (pure economic loss — no physical damage to these batches).
Decision	The Court of Appeal held that the claimant could recover for (1) and (2) but not for (3). The profit lost on the additional four batches was pure economic loss — it was not connected to any physical damage.
Key quote	Lord Denning MR justified the distinction on policy grounds: if recovery for pure economic loss were permitted, the defendant could face claims from an enormous number of people affected by the power cut — the floodgates problem.

Weller & Co v Foot and Mouth Disease Research Institute [1966]

Auctioneers lost income when cattle markets were closed due to an escape of foot and mouth disease virus from the defendant's research institute. Their claim for pure economic loss failed — the auctioneers had suffered no physical damage to their own property; their loss was purely financial.

Murphy v Brentwood District Council [1991]

The House of Lords held that a local authority that negligently approved defective building plans was not liable when the defects reduced the value of the building. The loss of value was pure economic loss, not physical damage. The building was not dangerous — it was simply worth less than it should have been.

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Policy Reasons for the Exclusion of Pure Economic Loss

The courts have identified several policy reasons for restricting recovery for pure economic loss:

Policy Reason	Explanation
Floodgates	Pure economic loss can affect a potentially unlimited number of people — allowing recovery would open the floodgates to innumerable claims
Indeterminate liability	The defendant could face liability "in an indeterminate amount for an indeterminate time to an indeterminate class" (Cardozo CJ, Ultramares Corp v Touche [1931])
Contract boundary	Economic interests are primarily protected by contract law, not tort — allowing tort claims for pure economic loss would undermine the contractual framework
Insurance	Claimants can (and are expected to) insure against pure economic loss, such as business interruption
Proportionality	The potential liability would be disproportionate to the degree of fault

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The Exception: Negligent Misstatement

The most important exception to the general rule against recovery of pure economic loss is the principle of negligent misstatement, established in Hedley Byrne & Co Ltd v Heller & Partners Ltd [1964].

Hedley Byrne & Co Ltd v Heller & Partners Ltd [1964]