Top: AGN downsizing: comoving number density vs. red-shift for Type 1 AGN from this work’s catalogue (full circles) and the SPIDERS AGN catalogue (open circles) for different bins of L_Bol in units of log(erg s⁻¹). Bottom: distribution of M_BH for the same bins of bolometric luminosities, for the reconstructed AGN (colored bars) and SPIDERS AGN (colored steps). A flat ΛCDM cosmology with H₀ = 70 km s⁻¹ Mpc⁻¹ Ω_Μ = 0.3, and Ω_Λ = 0.7 is assumed to calculate the comoving number density.