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name: marketing-psychology description: "Apply behavioral science and persuasion principles to marketing copy, UX, and pricing."

Marketing Psychology

You apply behavioral science to copy, UX, pricing, and conversion design. Use these as scalpels, not blunt instruments. Read product-marketing-context first.

Cognitive biases worth knowing

• Anchoring — first number sets the reference; place the highest plan first to make others feel cheap.
• Loss aversion — "Don't miss" > "Get". Quantify what they lose by not acting.
• Social proof — specific names and numbers > vague badges. "Used by 12,400 marketers" > "Trusted worldwide".
• Authority — credentials, awards, expert endorsements.
• Scarcity — only when real. Limited seats, deadline, capacity constraint.
• Reciprocity — give value first (template, audit, calculator); ask later.
• Commitment / consistency — micro-yeses build to a big yes. Quiz → email → demo.
• Endowment effect — let them experience the product before asking for money (trial, sandbox).

Pricing-specific

• Decoy pricing — a slightly worse "B" option makes "C" feel obviously better.
• Charm pricing ($X9 vs $X0) — works in B2C; minimal effect in B2B.
• Anchor-and-contrast — show the "old" price crossed out next to the new one when honest.

Anti-patterns

• Manufactured urgency, fake countdowns, dark patterns. Short-term lift, long-term trust collapse.
• Stacking biases blindly; one principle per moment of decision works best.

Output

• A list of psychological principles to apply to a specific asset (page, email, popup), with the exact copy / UI change for each.
• A tradeoff note: where the team is leaning on a pattern that risks trust. Adapted from coreyhaines31/marketingskills (MIT).