Measuring What Advertising Changes:  Attribution, Incrementality and the Future of Outcomes Measurement – Executive Summary

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Television and video have developed a sophisticated ecosystem for measuring what happens after advertising is delivered. Exposure can now be connected with an extraordinary range of consumer and commercial outcomes, and those signals increasingly influence planning, optimization and commercial arrangements, and these capabilities are becoming increasingly important to measurement, optimization and commercial decision-making. The next challenge is to establish more consistently what those connections mean – including when they support a claim about what advertising actually caused.

This Working Paper considers what is required for the next stage of that development. It examines two connected challenges for the U.S. television and video marketplace: how to strengthen the evidentiary basis of attribution and outcomes claims, and how to make credible outcome signals easier to interpret and use across a fragmented, multi-seller marketplace. It reviews what current systems measure, what their outputs can support, how outcomes are becoming embedded in media execution and commercial practice, and where targeted cross-industry work could improve transparency, experimental practice and marketplace interoperability.

The objective is to provide a practical roadmap for strengthening the marketplace’s existing capabilities. The analysis points to three opportunities for practical cross-industry work: establishing common definitions and disclosure requirements for outcomes measurement; developing and validating common practice guidelines for geographic randomized experiments in television and video; and assessing the minimum interoperability required to make credible outcome signals easier to use across multiple television sellers. This executive summary document is an extract of the full report, which is available to members of CIMM on the CIMM website.

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