Consumer psychology
The behavioural science behind why people buy
Inspector Insight reads the evidence on consumer decisions and states it plainly, for marketers, brand managers and insight professionals who have to act on it.
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Evidence, methods and brand thinking, written to be used rather than admired.
How Framing a Message Changes Consumer Response: Examples (2026)
How framing a message changes consumer response, with paired examples, the ethical line against deception, and a seven-step method to test a…
How Commitment and Consistency Drive Repeat Purchase (2026)
How commitment and consistency drive repeat purchase: how first choices turn buyers into loyal repeat customers, and how marketers can build the…
How Reciprocity Builds Customer Loyalty in 2026 (Explained)
Learn how reciprocity builds customer loyalty in : useful value, ethical gestures and simple ways to measure whether loyalty actually grew over…
How to Simplify a Product Range Without Losing Customers (2026)
How to simplify a product range without losing customers: map each product to a customer job, score margin and substitution risk, then…
How the Availability Heuristic Shapes Risk Perception in 2026
How the availability heuristic shapes risk perception: why vivid examples skew your judgement, and how to weigh base rates instead of recall.…
How the Halo Effect Distorts Product Ratings: 5 Red Flags 2026
How the halo effect distorts product ratings through brand impressions, packaging, price signals and early reviews, plus warning signs and ways to…
How Confirmation Bias Affects Marketing Decisions (October 2026)
How confirmation bias affects marketing decisions, and how marketing teams can spot it early, set kill criteria in advance, and cut it…
How the Endowment Effect Raises Perceived Value (2026)
How the endowment effect raises perceived value: why ownership shifts willingness to pay, and how marketers apply it without misleading consumers. Updated…
How Social Proof Changes Purchase Behavior: Proven Effects 2026
Learn how social proof changes purchase behavior in through trust, conformity, popularity cues and informed decisions, plus ways marketers can use it…
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Editor’s note
Every article here begins with a question someone actually has to answer at work, and follows the behavioural research as far as it honestly goes. Where the evidence is thin or contested, this site says so rather than rounding it up into advice.
About this site
What Inspector Insight is for
Inspector Insight explains the behavioural science behind buying decisions: the research methods behind a finding, the pricing cues that move a choice, the signals a brand sends before anyone reads a word of it.
It is written for marketers, brand managers, insight professionals and students of consumer psychology who need the thinking stated in plain language.
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