Definition
A wager policy is an insurance contract in which the person named as the insured has no insurable interest in the subject matter covered — that is, no genuine financial stake in the preservation of the thing insured. Because the insured cannot suffer any actual economic loss from the covered event (apart from losing the wager itself), the contract functions as a pure bet rather than as indemnity for real risk. If the insured event occurs, the "insured" collects a windfall; if it does not, the premium is forfeited. No legitimate insurance relationship underlies the transaction.
The defining feature is the absence of insurable interest: the insured neither owns the property, nor bears liability for it, nor stands in any legally recognized relationship that would cause the covered peril to produce genuine loss.
Common Confusion
A wager policy is sometimes confused with a speculative or over-valued policy, where a real insurable interest exists but the coverage amount exceeds the actual value of the subject matter. That is a separate problem governed by indemnity and valued-policy rules. A wager policy, by contrast, involves no insurable interest at all — the distinction is categorical, not one of degree. Similarly, the term should not be confused with wagering contracts generally; a wager policy is the specific manifestation of an illegal wagering contract in the insurance context.
Why It Matters in Research
The wager policy is historically important because it is the negative space that defines insurable interest — courts and legislatures developed the insurable interest doctrine precisely to prevent wager policies. Researchers tracing insurable interest doctrine will repeatedly encounter wager policy as the evil the rule was designed to prohibit.
Several research traps arise:
First, the terminology is largely historical. Modern cases and statutes rarely use the phrase "wager policy" directly. Instead, modern sources void such arrangements by applying insurable interest statutes or by characterizing the contract as against public policy. Researchers searching only for "wager policy" in modern databases will miss the bulk of directly relevant authority.
Second, the public-policy rationale has shifted over time. Early common law objected to wager policies primarily because they created incentives to destroy property or cause the death of the insured person — a moral hazard concern. Modern insurable interest statutes frame the prohibition more broadly, encompassing any arrangement that functions as a wager regardless of bad intent. Historical sources emphasize the moral hazard framing; researchers should not assume that framing controls modern doctrine.
Third, life insurance generated a distinct and still-contested body of law. The question of whether a policy taken out on another person's life constitutes a wager policy, and what degree of relationship satisfies insurable interest in the life context, produced enormous litigation in the nineteenth and early twentieth centuries. The Mass. case cited in Black's (2 Mass. 1) sits at the early edge of that development. Researchers working on life insurance insurable interest should treat this term as a gateway to a much larger and jurisdiction-specific body of authority.
Fourth, assignment of life insurance policies raised wager policy concerns that persist in modern stranger-originated life insurance (STOLI) litigation. A policy validly issued to someone with insurable interest, then assigned to a stranger investor, revived the wager policy problem under a different label. Modern STOLI cases are the functional descendants of the wager policy debate and may not use the historical terminology at all.
Historical Dictionary Support
All three source dictionaries converge on the core definition: a wager policy is one in which the insured has no insurable interest. Black's offers the most substantive treatment, defining the concept in two layers — first, the general absence of a real or valuable interest, and second, the functional test: the insured "could sustain no possible loss by the event insured against" absent the wager itself. That functional framing is analytically useful because it grounds the doctrine in economic reality rather than formalism.
Bouvier's is characteristically economical, cross-referencing insurable interest and policy without elaboration. Burrill's entry is fragmentary in the source material provided and adds nothing substantive.
What the historical dictionaries collectively miss is the full trajectory of judicial hostility to wager policies and the statutory regime that eventually replaced common law doctrine. They also do not address the life insurance context specifically, where the wager policy problem became most contested. Researchers should treat the dictionary definitions as entry points, not endpoints.
Jurisdictional Note
Every U.S. jurisdiction has abolished wager policies by statute, typically through insurable interest requirements codified in state insurance codes. The specific definition of insurable interest — particularly in the life insurance context — varies by state, as does the treatment of third-party assignments. Common law sources predating those statutes may reflect English rules that were not uniformly adopted in American jurisdictions.
Encyclopedia Cross-Reference
contracts_190: Insurance Contracts — Interpretation and Construction of Insurance Policies (The Law Mind Contracts & Commercial Law Encyclopedia)