Nine Psychology Concepts Marketers Exploit
Pierre Herubel · 2026
"Marketing works by triggering nine well-documented cognitive effects — halo effect, loss aversion, social proof, confirmation bias, scarcity, anchoring, goal-gradient, mere-exposure, and authority bias — rather than through rational persuasion about product merit."
Consumers rarely decide with pure logic. Nine specific, named psychological levers do most of the actual work.
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Confirmation Bias: A Ubiquitous Phenomenon in Many Guises
"People systematically seek out, interpret, and remember information in ways that confirm their existing beliefs, while ignoring or discounting evidence that contradicts them — making it one of the most pervasive and hardest-to-correct biases because it operates on what evidence gets noticed in the first place, not just how it's judged afterward."