The statistical population comprises all establishments that have ten or more employees in the 31 participating countries, covering all sectors of economic activity except for agriculture, forestry and fishing (NACE A), households (NACE T) and extraterritorial organisations (NACE U). The relevant statistical unit of analysis is the establishment, defined as comprising the activities of a single employer at a single set of premises (e.g. a single branch of a bank, a car factory or a school).