Best Level. The most accurate value for an economic statistic at a specified point in time using the best available source data. This value may differ from the published value, which because of revision schedules, may not yet have incorporated those data.
The benchmark I-O accounts provide best-level estimates for the NIPAs and other accounts. Best-level estimates produced for the NIPAs are used by the industry staff for comparison as part of preparing the estimates of final uses for the benchmark I-O accounts.
- Concepts and Methods of the US Input-Output Accounts. K.J.Horowitz, M.A.Planting, 2009