Loss ratio
The ratio of claims paid to premiums earned — the number that tells you whether the pricing was right.
18% average improvement in the first 12 months after implementation.
Loss ratio is underwriting's scoreboard. It does not tell you whether you sold a lot; it tells you whether you priced correctly — and so it reveals, late, every mistake made at the front of the book.
The lateness is the problem. A bad pricing decision made today only shows up in the loss ratio months later, when the claim lands, and by then the book is already written. Anyone steering by this number alone is always correcting last year.
Shortening that loop means acting where it starts: behavioral signal at quote, and repricing when observed risk changes mid-contract. Across Zarv implementations the average improvement was 18% in the first 12 months.