First- and Third-Party Data Work Better Together: Magna/Acxiom Study
Few studies get into the statistically-valid details of first- vs third-party ad audience performance. This joint Magna and Acxiom effort is an exception, randomly assigning members of each audience type to test and control groups and measuring the impact of pre-roll video ads on brand metrics. The results were perhaps less impressive than the methodology: you probably could have guessed that first-party audiences contain more existing customers and third-party audiences, and both together yield higher results than either alone.