As a marketer, I want data to better understand the risks and impact of investments in marketing. I am a true believer in data, which also means that the limitations of data are factored into my thinking.
The nonsense pushed around for decades that by default, human beings respond to stimuli in a binary way is increasingly being recognised for the bunkum it is. Marketing effectiveness is not as easily subject to risk analysis and probability based reasoning as most, including myself, would like to be the case.
Data that represents what has happened in the past might be objectively true, but as we see every day, can easily be interpreted and presented differently to deliver the message the carrier wants to be heard.
If we can do it with real data collected from past activities, imagine the vagaries that can be built into the data that is supposed to be telling us what will happen!
The selling point of all the digital data around is that it is both accurate and actionable. Tactically this is partly true, strategically it ranks with the fortune teller in the local fete as a base from which to make long term choices.
The two fundamental drivers of calculating an objective assessment of the impact of a marketing investment are:
Attribution.
Attribution is a particularly difficult and often overlooked problem. Is that purchase because of the anonymous display ads on Google, the annoying branded email that follows you around for weeks after a casual search, the fact that the truck that went past your door delivering was clean, the TV advertising, or that the packaging looked good on a supermarket shelf? All these factors play a role in creating a successful marketing investment, but how do you sort out the relative weights of the impact with one dimensional data?
The unpredictability of human behaviour.
Then you have the fact that people simply do not act rationally, or always in their own best interests, the two foundations of econometrics. They act on a range of impulses and learned behaviours that have little to do with rational economics, and everything to do with psychology. We are only just beginning to understand the impact of psychology on an individuals decision making.
Between them, these two factors make assessment of marketing effectiveness an elusive target. It is best served with the combination of data, and intelligent hindsight, mixed with a high degree of qualitative sensitivity to the drivers in the market, and instinct. These characteristics are only gathered with deep experience, years down in the marketing weeds, learning by doing. It does not come from a textbook, online course, or a few years following instructions.
