  We have investigated the spatial distribution of quasars and its relationship
with redshift by using the two-point correlation function, the variance of cell
counts and the conditional density as a function of redshift. By comparing our
results with those found by other authors we conclude that quasars have a
correlation function with amplitude similar to or greater than that of
galaxies, but the issue of its evolution still needs to be settled. We discuss
how this can be achieved by adding new observations and comparing real data
with survey simulations.
