Segmentation (STP Step 1) – Comprehensive Study Notes

Segmentation within STP: Core Purpose

  • STP = Segmentation, Targeting, Positioning; segmentation is the 1st step.
  • Objective: break the total market into smaller, internally similar but mutually different groups that a firm can pursue with tailored strategies.
  • Why segment?
    • Markets are heterogeneous; segmentation allows precise value propositions, pricing, communication, distribution and product design.
    • Avoids head-to-head competition in over-served arenas; reveals overlooked pockets of demand (e.g., Walmart in rural U.S.).

Primary Consumer-Market Segmentation Bases

Geographic
  • Divide by physical location: nations, regions, states, counties, cities, neighborhoods.
  • Case study – Walmart:
    • Era: late 1950s / early 1960s.
    • Retailers focused on urban areas even though 60%60\% of U.S. population lived in rural areas.
    • Walmart opened stores in towns of a few thousand to ≈20,000 residents → low competition, high loyalty → foundation for becoming the world’s largest retailer.
Demographic
  • Observable population descriptors: age, gender, income, occupation, education, religion, ethnicity, household size, life-cycle stage.
  • Illustrations:
    • Gender-specific toys (aisles visibly differentiated by color & themes).
    • Age:
    • Teens/college students gravitate toward beer & potato chips.
    • Adults in their 30s–40s with kids purchase diapers & baby formula.
    • Income:
    • Higher-income consumers possess greater purchasing power; product & price lines can be tiered to match.
Psychographic
  • Focus on lifestyles, social class, personality, values, interests, opinions.
  • Examples:
    • Social class: Upper-middle vs. working-class consumers display different status symbols & consumption patterns.
    • Lifestyle: Outdoor-sports enthusiasts (hiking, biking) vs. stay-at-home hobbyists (gaming, crafts) → distinct product & media preferences.
Behavioral
  • Segment based on what people actually do (observed actions).
  • Key sub-criteria:
    1. Occasion – footwear for weddings vs. gym vs. office.
    2. Benefit sought – performance enhancement, convenience, economy, prestige.
    3. User status – non-user, potential, first-time, regular.
    4. Usage rate – light, medium, heavy.
    5. Loyalty status – none, medium, strong; can be quantified via Customer Lifetime Value (CLV).
  • Fast-growing because behavioral data are now trackable through POS, apps, CRM, web analytics.
Combining Bases
  • Firms rarely rely on one variable; they craft multi-attribute segment profiles (e.g., “Urban, high-income, fitness-oriented millennials who purchase athleisure monthly”).

Business-to-Business (B2B) Segmentation

  • Many consumer criteria still apply, but additional firmographics & operational factors are critical.
  • Typical B2B variables:
    • Industry/vertical (health-care, government, high-tech).
    • Company size (sales, employees).
    • Operating characteristics (production process, technology adopted).
    • Purchasing approach (centralized vs. decentralized; tender vs. relational buying).
    • Situational factors (geographic dispersion, number of facilities).

International Segmentation Considerations

  • Must layer cross-border factors onto existing bases.
  • Common filters:
    • Geography/region.
    • Economic development level (emerging vs. mature markets).
    • Political–legal environment (regulations, stability).
    • Culture (values, norms, language, religion).
  • Alternative worldview: target global consumer needs that transcend borders (e.g., universal desire for connectivity or health) rather than country-by-country.

Criteria for “Effective” Segmentation (M.A.S.D.A.)

  1. Measurable – size, purchasing power, profile can be quantified.
  2. Accessible – segment can be reached & served via communication and distribution channels.
  3. Substantial – segment is large/profitable enough to warrant a tailored program.
  4. Differentiable – segments respond differently to the marketing mix; high internal homogeneity & external heterogeneity.
  5. Actionable – firm can design & implement marketing programs that attract and serve the segment.

Connections to Broader Marketing Principles

  • Segmentation underpins positioning: without clear segments, positioning statements lack focus.
  • In the marketing mix (4P), segmentation guides product variants, pricing tiers, place/channel decisions, and promotional messages.
  • Ethically, segmentation must avoid discriminatory practices; marketers should not exploit vulnerable groups (e.g., targeting unhealthy products to children).
  • Data privacy regulations (GDPR, CCPA) affect behavioral segmentation; firms must secure consent and safeguard consumer data.

Practical & Strategic Implications

  • Entering underserved segments (like Walmart’s rural play) can establish a first-mover advantage.
  • Over-segmentation risks fragmentation and unsustainable cost; firms must balance granularity with economies of scale.
  • Technology (AI, machine learning) enables micro-segmentation & real-time personalization but increases complexity.

Illustrative Numbers & Terms Recap

  • Rural U.S. population at Walmart’s founding: 60%60\%.
  • Town sizes targeted: “few thousand,” 10,00010,000, 20,00020,000 inhabitants.
  • Segmentation criteria acronym: M.A.S.D.A. → Measurable, Accessible, Substantial, Differentiable, Actionable.

Study Checkpoints

  • Can you list and define the four main consumer segmentation bases?
  • How does behavioral segmentation differ from psychographic?
  • Apply M.A.S.D.A. to an example segment of your choice.
  • Contrast B2B firmographics with consumer demographics.
  • Explain why Walmart’s geographic strategy was a competitive breakthrough.

Looking Ahead

  • Having dissected segmentation, the next logical step is Targeting: evaluating segment attractiveness & selecting which ones to serve.