2021-04-122012-01-0116957253SCOPUS;2-s2.0-84887460282http://hdl.handle.net/10784/28030This article presents a methodology to calculate, for the whole of the Autonomous Communities in Spain, firm demography indicators at the sector level, disaggregating in terms of both business size and the legal status of companies. We provide empirical evidence using quarterly accounts of Social Security for Catalonia. As firm demography indicators are usually obtained annually, we propose new formulations that allow their calculation on quarterly bases, using information from the Social Security records, so that the results are consistent with the official information. © Investigaciones Regionales.enghttps://v2.sherpa.ac.uk/id/publication/issn/1695-7253articleFirm demographyRegional analysis2021-04-12Duque, J.C.García, J.R.Suriñach, J.10.1155/2013/239384