marketing-psychology

name: marketing-psychology description: Behavioral triggers, persuasion frameworks, cognitive biases for marketing. Triggers on "psychology", "persuasion", "FOMO", "social proof", "scarcity", "tâm lý khách hàng", "thuyết phục".

Marketing Psychology

Apply behavioral science principles to increase conversions, engagement, and brand loyalty. This skill provides actionable psychological frameworks — not academic theory. Each principle maps to specific implementation patterns for copy, design, pricing, and user experience. Includes Vietnamese consumer psychology insights.

Initial Assessment

Before applying psychological principles, determine:

1. What is being optimized? Landing page, email, ad, pricing page, onboarding flow, or checkout?
2. What action is desired? Click, signup, purchase, share, return visit, or upgrade?
3. What is the current friction? Why are users NOT taking the action? Identify the barrier before applying triggers.
4. Audience awareness level? Unaware, problem-aware, solution-aware, or most-aware? Different levels need different triggers.
5. Ethical boundary? Psychology should reduce genuine friction, not manufacture fake urgency or deceive.
6. Brand context loaded? Read docs/brand-guidelines.md — some triggers conflict with certain brand positions.

Core Methodology

The Persuasion Toolkit: 12 Triggers

Each trigger has a principle, implementation pattern, and copy template:

1. Social Proof — People follow the actions of others.

• Implementation: user counts, testimonials, ratings, "popular" badges, live activity feeds
• Copy: "50,000+ doanh nghiệp đã tin dùng" / "Rated 4.8/5 by 2,000+ users"
• Strongest when: proof is specific, recent, and from similar users

2. Scarcity — Limited availability increases perceived value.

• Implementation: stock counters, time-limited offers, seat limits, seasonal exclusivity
• Copy: "Chỉ còn 5 suất" / "Offer ends in 23:59:41"
• Rule: must be real scarcity. Fake countdowns destroy trust permanently.

3. Urgency — Time pressure accelerates decisions.

• Implementation: countdown timers, deadline copy, "today only" framing
• Copy: "Đăng ký trước 23:59 hôm nay để nhận ưu đãi" / "Price increases Friday"
• Combine with scarcity for maximum effect but use sparingly.

4. Loss Aversion — Pain of losing > pleasure of gaining (2x stronger).

• Implementation: frame benefits as avoiding loss, trial expiration warnings
• Copy: "Đừng bỏ lỡ 2 triệu đồng tiết kiệm" instead of "Tiết kiệm 2 triệu đồng"
• Best for: trial-to-paid conversion, cart abandonment, re-engagement

5. Anchoring — First number seen sets the reference point.

• Implementation: show original price before discount, show expensive tier first
• Copy: 499.000đ 299.000đ / "Companies pay $50K for consultants. Get the same insights for $49/mo."
• Always show the anchor before the actual price.

6. Reciprocity — Give value first, ask second.

• Implementation: free tools, free content, free trial, surprise bonuses
• Copy: "Tặng bạn ebook miễn phí" before asking for email
• In Vietnam: gift-giving culture makes reciprocity especially potent.

7. Authority — People trust experts and institutions.

• Implementation: certifications, media logos, expert endorsements, data citations
• Copy: "Được giới thiệu trên VnExpress, Báo Tuổi Trẻ" / "Recommended by Dr. [Name]"
• In Vietnam: government certifications and media mentions carry outsized weight.

8. Commitment & Consistency — Small yeses lead to big yeses.

• Implementation: micro-commitments before main CTA, progressive disclosure forms, quizzes
• Copy: "Bạn có muốn tăng doanh thu không?" → [Yes] → show offer
• The foot-in-the-door technique: get a small action first, then escalate.

9. Curiosity Gap — Open loops drive engagement.

• Implementation: incomplete information in headlines, "reveal" CTAs, teaser content
• Copy: "Sai lầm #1 mà 90% startup mắc phải khi định giá (và cách khắc phục)"
• Close the loop within the same content. Never bait without delivery.

10. Endowment Effect — People value what they already "own" more.

• Implementation: free trials that feel like ownership, personalized dashboards, "your plan" language
• Copy: "Tài khoản Pro của bạn sẽ hết hạn trong 3 ngày" (they already "have" it)
• Powerful for trial-to-paid and downgrade prevention.

11. Bandwagon Effect — Momentum attracts more momentum.

• Implementation: growth metrics, "trending" labels, community size, real-time user activity
• Copy: "1,000 người đã đăng ký tuần này" / "Fastest-growing tool in the category"
• Especially strong in Vietnamese collectivist culture.

12. Framing Effect — Same info, different presentation, different decision.

• Implementation: "95% uptime" vs "Only 18 hours downtime/year". Same fact, different feel.
• Copy: "Chỉ 6,600đ/ngày" vs "199,000đ/tháng" — daily framing feels smaller.
• Always frame toward the response you want.

Trigger Selection Matrix

Match triggers to optimization goals:

Workflow

Scenario 1: Optimize a Page for Conversions

1. Load the target page context and brand guidelines
2. Identify the desired action and current conversion rate
3. Diagnose the primary friction: is it trust, urgency, value clarity, or effort?
4. Select 2-3 triggers from the toolkit that address the specific friction:
   • Low trust → Social Proof + Authority
   • No urgency → Scarcity + Urgency
   • Unclear value → Anchoring + Framing
   • Too much effort → Commitment (micro-steps) + Reciprocity
5. Write specific implementation recommendations with exact copy suggestions
6. Map placement: where on the page each trigger appears (hero, mid-page, near CTA, checkout)
7. Save to assets/reports/psychology-audit-[page]-YYYY-MM-DD.md

Scenario 2: Embed Triggers in Copy

1. Load copy being optimized (from copywriting or email-marketing output)
2. Identify opportunities to insert triggers without changing the core message
3. Apply the trigger naturally — forced psychology feels manipulative and backfires
4. Examples of subtle integration:
   • Add "(2,000+ users)" after a product mention → Social Proof
   • Change "Buy now" to "Claim your spot — 12 left" → Scarcity
   • Reframe "Save 200K" to "Stop losing 200K every month" → Loss Aversion
5. Output the enhanced copy with annotations explaining each trigger used
6. Save alongside the original copy file

Scenario 3: Psychological Pricing Audit

1. Load current pricing page or structure
2. Check for these psychological elements:
   • Anchor price visible (highest tier or original price)
   • Charm pricing applied (x9 endings)
   • Decoy tier present (makes target tier look attractive)
   • Value framing (daily/hourly cost breakdown)
   • Social proof on recommended tier
   • Loss aversion in trial expiration messaging
3. Recommend additions for any missing elements
4. Save to assets/reports/pricing-psychology-audit-YYYY-MM-DD.md

Vietnamese Consumer Psychology

Cultural Foundations

Vietnamese consumer behavior is shaped by collectivism, relationship-driven trust, and pragmatic value-seeking:

Collectivist decision-making:

• Purchase decisions are influenced by family, friends, and community opinion
• "Mọi người đều dùng" (everyone uses it) is one of the strongest conversion phrases
• Group buying and shared recommendations on Zalo groups drive discovery
• Bandwagon and Social Proof triggers are 2-3x more effective than in individualist markets

Trust hierarchy in Vietnam:

1. Personal recommendation from friend/family (strongest)
2. KOL/KOC endorsement (trusted more than brand messaging)
3. Community reviews on Facebook groups / Shopee reviews
4. Media coverage (VnExpress, Tuổi Trẻ, CafeF)
5. Brand's own claims (weakest — must be supported by layers above)

Implication: invest in generating layers 1-4 before optimizing layer 5.

Price-quality tension:

• Vietnamese consumers actively seek deals but distrust prices that are "too cheap"
• "Rẻ mà tốt" (cheap but good) is the aspiration — not just cheapest
• Crossed-out original prices (anchoring) perform exceptionally well
• "Cam kết chính hãng" (authentic product guarantee) resolves the cheap=fake concern

Trigger Effectiveness in Vietnam (Ranked)

Ethical Guidelines

• Never fabricate social proof (fake reviews, inflated numbers)
• Never create false scarcity (fake countdown timers that reset)
• Never use dark patterns that trick users into unintended actions
• Always ensure the product delivers on the psychological promise
• If a trigger feels manipulative, it probably is — find a genuine version

Output Specification

• Format: Markdown with trigger recommendations, copy examples, and placement maps
• Location: assets/reports/
• Naming: psychology-audit-[page]-YYYY-MM-DD.md, pricing-psychology-audit-YYYY-MM-DD.md

Quality Checklist

• Friction diagnosed before triggers selected (not triggers first, problem second)
• 2-3 triggers per optimization (not all 12 at once)
• Each trigger has specific copy and placement recommendation
• Vietnamese cultural context applied (collectivism, trust hierarchy)
• Ethical guidelines respected — no fabrication or dark patterns
• Brand voice from docs/brand-guidelines.md maintained
• Output saved to assets/reports/ with correct naming

Related Skills

• copywriting — Embedding triggers in marketing copy
• pricing-strategy — Psychological pricing principles
• ab-test-setup — Testing which triggers produce the best lift
• form-cro — Reducing form friction using commitment/consistency
• onboarding-cro — Retention triggers in onboarding flows