The Mechanics of Index-Based Cover
Traditional insurance pays what a loss-adjuster measures; parametric insurance pays what a sensor reads. That single substitution changes everything downstream — speed, cost, disputes, and who bears the residual risk. Do not treat parametric cover as a cheaper indemnity policy. It is a different instrument answering a different question: not 'how much did you lose?' but 'did the world cross a line we agreed on?' For a data center, that line is drawn in wind speed, degree-days, or river gauge height. Draw it well and you have liquidity within days. Draw it badly and you have an expensive weather bet.
Knowledge check
Why can a parametric policy pay out even when the insured facility suffered no physical damage — and why is that a feature, not a defect?
Show the answer
Because the policy pays on a measured index crossing an agreed threshold, not on assessed loss. The trigger and the damage are correlated but not identical. Payment on the index — regardless of actual damage — is the deliberate trade: the buyer accepts that payout and loss may diverge (basis risk) in exchange for speed, transparency, and low administrative cost. A payout with no damage is simply the favorable tail of that same divergence.