Robert L. Marsa, Ph.D. [pictured], VP of Technology at Adometry, Inc. writes for Mediapost's Metrics Insider: For online marketers, the practice of global optimization involves making small changes to the volumes of impressions served on all, or almost all, ad placements with the goal of maximizing a target metric, such as gross profit or number of conversions.
While advertisers have been performing more simple A/B tests for years, many now realize that they need to improve their tests in order to effectively optimize global campaign spends and remain competitive. While global optimization tests require a bit more effort, the results can significantly improve return on ad spend (ROAS). More...
