your ID: 0068 First Name: Junxian Last Name: Wang Affiliation: Center for Astrophysics, University of Science & Technology of China Title: On the fraction of X-ray obscured quasars Authors: Junxian Wang Topic: 6 Session: oral Abstract: Various studies have claimed that the fraction of obscured AGN drops with luminosity. We present our recent study on the fraction of X-ray obscured quasars in Chandra Deep Fields and in the local universe with evidences against this scheme.