Marketing is going back to utilize the same measurement technologies that were prevalent before digital tracking was ubiquitous, via Media/Market Mix Modeling (MMM): https://en.wikipedia.org/wiki/Marketing_mix_modeling However, now we can process, hold, and model way more data, driving toward way more useful outputs; but, without any of the privacy implications that exist at a user-level.
So, we now use MMM + user-level attribution (Multi-touch Attribution or MTA) as a hybridized modeling effort to provide what is known in the industry as 'Unified Measurement Modeling' in order to provide the most robust look at how marketing is working.
So, we now use MMM + user-level attribution (Multi-touch Attribution or MTA) as a hybridized modeling effort to provide what is known in the industry as 'Unified Measurement Modeling' in order to provide the most robust look at how marketing is working.