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🎯 '''Parametric trigger''' is a mechanism in an [[Definition:Insurance | insurance]] or [[Definition:Reinsurance | reinsurance]] contract that initiates a [[Definition:Claims | claim]] payment when a predefined, objectively measurable parameter — such as wind speed, earthquake magnitude, rainfall level, or disease incidence rate — reaches a specified threshold, rather than requiring proof of actual losses incurred by the [[Definition:Policyholder | policyholder]]. This approach fundamentally differs from traditional [[Definition:Indemnity | indemnity]]-based coverage, where payouts are tied to documented, verified losses.

⚙️ The trigger parameter and its threshold are embedded in the [[Definition:Policy | policy]] or [[Definition:Catastrophe bond | bond]] documentation at inception, typically relying on data from independent, authoritative third-party sources — national meteorological services, the USGS, WHO declarations, or satellite imagery providers. When the measured value crosses the contractual threshold, the payout is calculated according to a predetermined formula and disbursed rapidly, often within days or weeks. Because there is no traditional [[Definition:Claims adjustment | loss-adjustment]] process — no site inspections, no proof-of-loss documentation, no coverage disputes — parametric triggers dramatically compress the settlement timeline. The trade-off is [[Definition:Basis risk | basis risk]]: the possibility that the parameter triggers a payment when the insured suffered little actual damage, or conversely, that the insured sustains significant losses but the parameter falls just short of the threshold.

💡 Parametric triggers have gained substantial traction in [[Definition:Catastrophe insurance | catastrophe]] and [[Definition:Emerging risk | emerging-risk]] markets where traditional loss adjustment is slow, expensive, or impractical. Sovereign risk pools like the Caribbean Catastrophe Risk Insurance Facility use parametric triggers to provide governments with immediate post-disaster liquidity. In the [[Definition:Insurtech | insurtech]] space, startups have built parametric products for flight delay, crop weather, and [[Definition:Pandemic insurance | pandemic]] coverage that appeal to consumers and small businesses who value speed and transparency. For [[Definition:Reinsurance | reinsurers]] and [[Definition:Insurance-linked securities (ILS) | ILS]] investors, parametric structures simplify modeling and reduce moral hazard, making them an increasingly popular tool for transferring peak [[Definition:Natural catastrophe | natural catastrophe]] and non-traditional risks to the [[Definition:Capital markets | capital markets]].

'''Related concepts'''
{{Div col|colwidth=20em}}
* [[Definition:Parametric insurance]]
* [[Definition:Basis risk]]
* [[Definition:Catastrophe bond]]
* [[Definition:Indemnity]]
* [[Definition:Index-based insurance]]
* [[Definition:Insurance-linked securities (ILS)]]
{{Div col end}}

Definition:Parametric trigger - Revision history

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