The problem with the generation gap? Marketers keep falling into it

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What a pity then, that so much of it is unadulterated nonsense.

The idea of generations — distinct, neatly defined groups of people who are roughly the same age and who’d have been influenced by the same set of events isn’t a new one; even Cicero mentions them, “What nobler employment, or more valuable to the state, than that of the man who instructs the rising generation?”

And that was in 43BC, so it’s safe to say the concept goes back a few years.

Contemporary generation theory rests on the assumption that cultural events determine personality and value systems more than do life experience and circumstance. And, that these values will remain relatively constant as a person ages. Simply put, when you were born affects your attitudes, values, and behaviours more than your life experience, social class, circumstance, politics, etc.

Sound familiar? It’s the kind of logic you find in the horoscope section.

Inappropriate attribution of cause

And just like Astrology, while the idea of generations has some intuitive appeal — who doesn’t know someone fitting the Millennial or Gen-X bill perfectly? — the science just doesn't support it. What the science explains instead, is that most of the findings showing distinct generations can be explained by other causes, or have serious scientific flaws, or both. Solid evidence for any of the major aspects of the theory is completely lacking.

Science shows that a large part of generation theory, can be explained by Inappropriate Attribution of Cause. For example, millennials may very well score lower on job satisfaction than Gen-Xers. But are millennials really a less satisfied generation?

Early in their careers, X-ers were also less satisfied than Baby Boomers. As people get older they are more likely to leave jobs they do not like and migrate toward ones they do.

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Similarly, on average, millennials are no more narcissistic now than X-ers or boomers were when they were in their 20s. Because people in their 20s have always tended to be narcissistic. They may be more narcissistic than X-ers today, but they are not unique as a generation because of that.

And as a final example is the assertion that millennials are “financially illiterate”; perhaps they are, but then, who in their early 20s isn’t? There isn’t a Boomer or X-er alive who could balance a check book at that age.

All of these are examples of just one particular type of Inappropriate Attribution of Cause, the Age Effect, where observed differences aren’t really part of some extraordinary new psychographics to have evolved in our species. They’re just part of a phenomenon scientists define, in technical terms, as “being young.”

Does age really matter?

Apart from these objections, and those from psychology is the inherent cultural bias that accords events like 9/11 far more significance than events that may have been more directly experienced by the 1.5 billion ‘Millennials’ who live outside Europe or USA e.g. 1994. Even if generation theory really were scientifically sound, would it serve a useful purpose in marketing? Are generations a good way of segmenting markets?

A market segment is not a group that just shares similar demographics; it’s a group of consumers who think, behave, or respond in similar ways to similar events or stimuli. For it to be useful, a segmentation scheme must meet two simple criteria:

It must explain the variance in particular behaviours better than other available variables; and consumers within segments should have more in common with each other than with people outside the group.

As Professor Mark Ritson says, “Unless you can prove that this demographic group actually thinks and behaves differently from others, your segment is not a segment at all. It’s just a crap stereotype on which you will first pile a bunch of assumptions and then later your product.”

Unfortunately, as he adds, time after time and study after study what the researchers actually find is that, “Apart from being, younger, friskier and poorer than the oldies ahead of them on the demographic motorway of life, they are actually remarkably similar to everyone else.” In fact, what research repeatedly shows is that supposedly different older cohorts are just as likely to agree with a millennial as disagree.

Todd Yellin, vice-president of product innovation at Netflix, has described traditional demographics as "almost useless" because there are “19-year-old guys who watch Dance Moms, and 73-year-old women who are watching Breaking Bad and Avengers.

Demographic segmentation

In fact, demographics have only ever offered a rough proxy for expected behaviour. Lumping consumers into generations based on when they were born is among the crudest forms of demographic segmentation, and when we live in a world rich in behavioural data, so unnecessary. Past behaviour is a far better and easier predictor variable than a generation-demographic.

Basing decisions on flawed theory and massive generalizations that perpetuate stereotypes rather than let us see people for the individuals they are, will always lead to poor advice and bad strategy — ideas that will end up wasting resources on special treatment and prioritization for groups who don’t actually warrant it.

So, if you’re "excited by the opportunities the millennial generation offers for your brand,” sadly, we are not the agency for you. But if you go back to Google and search “generation consultant,” you’ll find there’s a good few million companies who’ll gladly take your money.

And probably laugh all the way to the bank.