Once a quarter, participating companies provide us with premium volume changes in insurance prices for the latest quarter for each of the surveyed commercial lines of business they write, as well as their estimate of the changes in loss costs for that business. We compute changes in loss ratios from those price and loss cost movements.
Our data comes directly from insurance companies’ price monitoring systems, and we believe it is a more credible source for benchmarks than other survey information based on agent and broker perceptions of premium changes.
The data provided by our participants are segmented by line and by market: small, midsize and large accounts. Additionally, we capture data separately for specialty lines, such as directors and officers liability, errors and omissions, professional liability, employment practices liability and surety.
The detailed survey results by line and market are provided back to participating companies only and are not publicly available. However, we do share some aggregate results and directional commentary with the public.