Definition: Key variables
Within the ESSnet Admin Data, this term is used to refer to the statistical variables that are most important and have the largest impact on a statistical output (e.g. turnover, number of employees, wages and salaries, etc.).
European Statistical System (ESS), "Admin Data Glossary. Definitions adopted for certain terms related to the use of administrative data for producing business statistics", ESSnet Admin Data (Overview of MSs’ Existing Practices in the Uses of Administrative Data for Business Statistics), Deliverable 1.1, 2013