Luminosity function from dedicated SDSS-III and MMT data of quasars in 0.7 z< 4.0 selected with a new approach

We present a measurement of the quasar luminosity function in the range 0.68 2.15. Using pure luminosity evolution models, we fitted our LF measurements and predicted quasar number counts as a function of redshift and observed magnitude. These predictions are useful inputs for future cosmology surveys such as those relying on the observation of quasars to measure baryon acoustic oscillations.