business demography in europe background material spain index page section 0 general introduction 1 quantitative information 2 necessary to identify the differences related quantification of issues national definitions has definition changed during last five years ie since 1995 3 which is are source s and what its their nature trade register vat labour or social security statistic bureau there any difference entry exit according kind used 4 statistical unit enterprise local establishment 5 do new independents professionals entrepreneurs businesses with employees belong your registration 6 dormant enterprises considered existing factors justify possible presence these registers 7 please specify degree availability data for some specific groups identified from a dimensional micro sectoral economy etc point view