The Association of National Advertisers this morning released findings of an extensive probe into the “transparency,” or lack thereof, of agency media-buying practices and said it found the practice of kickbacks or non-transparent media rebates to agencies to be “pervasive.”

The findings, which are the result of an eight-month study conducted by K2 Intelligence, found “evidence of a fundamental disconnect in the advertising industry regarding the basic nature of the advertiser-agency relationship” and called for full “disclosure” of the media-buying process.

Read the full MediaPost article here.