<p>The administrative files BIC, BNC, BA allow to get back accounting information on the company, the DADS supplies data on staff and their payments.</p>
<p>In the first place, the ESA and EAP surveys allow to determine the different activities carried out by enterprises, thanks to the breakdown of their turnover according to their different activities, and then to deduce their principal activity code (APE code). The ESA survey allows morever to detect some legal restructurings, to complement the tax data on some investment or employment variables, and finally to describe the main features of each economic sector via so-called "sectoral" information, unavailable in the administrative data, such as data on the commercial equipment, the kind of customers or the nature of the works realized for the construction…</p>
