Customer Satisfaction: Measurement, Models, and Loyalty Complete Revision Notes

Customer Satisfaction, Measurement, and Loyalty

Core Concept: Customer Satisfaction indicates the fulfillment customers derive from doing business with a firm. It is the overall impression a customer forms based on how effortlessly and conveniently their needs are met, leading to loyalty.

 Importance of Customer Satisfaction

1. Loyal Customers are a Treasure: It is 6-7 times more expensive to acquire a new customer than to keep an existing one. Loyal customers are worth up to 10x as much as their first purchase.

2. Customers Can Defect Quickly: Clients switch brands easily due to terrible service. It takes up to 12 positive experiences to make up for one unresolved negative experience.

3. It Directly Impacts Revenue: Happy customers make repeat purchases, recommend the product, and don’t look at competitors, increasing customer lifetime value (CLTV).

4. Competitive Advantage: Good service helps you stand out. As Kate Zabriskie said, “Although your customers won’t love you if you give bad service, your competitors will.”

5. Brand Advocacy: Satisfied customers share your content on social media and leave admirable comments, serving as free, highly convincing marketing.

 Measuring Customer Satisfaction

Why measure it? The average business loses 10-30% of its customers each year without knowing why. Measuring it prevents base decay and increases profitability.

Key Metrics (Highly Testable!)

• CSAT (Customer Satisfaction Score): Asks, “How would you rate your experience?” (Scale: Very unsatisfactory to Very satisfactory). Pros: Versatile and immediate. Cons: Biased (mildly satisfied people ignore it) and lacks predictive power for future loyalty.

• NPS (Net Promoter Score): Asks, “On a scale of 1-10, how likely are you to recommend us?” Introduced to account for CSAT’s lack of predictive power regarding customer loyalty.

• CES (Customer Effort Score): Asks, “How hard did you have to work to get your problem fixed?” (Scale: 1 = Very easy, 5 = Monster headache). Focuses on increasing loyalty by saving the customer time and effort.

Feedback Collection Methods

1. Direct Feedback: In-app surveys (high response rate but must be concise), Post-service surveys (via email/chat immediately after solving an issue), Email surveys (lowest response rate but allows for in-depth answers), and Volunteered feedback (comment boxes).

2. Indirect Feedback: Website analytics (tracking shares, time spent, bounce rate), and monitoring social media mentions.

 Customer Satisfaction Models

These models are causal equations used to measure how happy customers are based on perceived quality, value, and expectations.

1. The Kano Model (1984)

Developed by Prof. Noriaki Kano, it splits product attributes into four categories based on how they impact satisfaction:

• Threshold Attributes: The “must-haves.” Customers expect these by default.

• Performance Attributes: Features where satisfaction increases proportionately with performance. Customers are willing to pay for these.

• Excitement Attributes: Unexpected features that naturally delight customers.

• Indifferent Attributes: Features that have little to no importance to the customer.

2. The Disconfirmation of Expectations Model

• Formula: Performance – Expectations = Satisfaction.

• Positive Disconfirmation: Perceived performance > Expectations (Satisfaction increases).

• Negative Disconfirmation: Perceived performance < Expectations (Satisfaction decreases).

• Flaw: It suggests companies should artificially lower expectations to easily impress customers, which could inadvertently lower actual performance levels.

3. The Performance Model

Argues that perceived performance (value received relative to price paid) has a direct, positive effect on satisfaction, often stronger than expectations alone.

4. The Rational Expectations Model & Expectations-Artefact Model

• Rational Expectations: Assumes the mean expectations of the market equal the actual output. (Performance = Expectations) Rational expectations theory says that people use all available information – not just past data, but also current policies, economic trends, and so on – to form forecasts about the future. Because they’re making smart predictions with all that info, their average expectations should pretty much line up with what actually happens, on average, making their errors random and unpredictable.[].

• Expectations-Artefact (For Complex Services): Argues that for complex services (like construction project management), expectations don’t affect satisfaction because inexperienced clients don’t know what to expect. Therefore, firms should just focus on pure performance.

 ISO Quality Standards

• ISO 9000 Family: A set of QMS (Quality Management Systems) standards that help organizations meet customer needs within statutory requirements. Based on 7 principles:

  1. Customer Focus

  2. Leadership

  3. Engagement of People

  4. Process Approach

  5. Improvement

  6. Evidence-based decision making

  7. Relationship management

• QS 9000: Developed by the “Big Three” automakers (GM, Chrysler, Ford) in 1994. Terminated in 2006 and superseded by ISO/TS 16949 (now IATF 16949). Required 6 supplementary manuals (e.g., FMEA, SPC, APQP).

• ISO 14000: An optional set of standards to help companies reduce industrial waste and environmental damage (Environmental Management Systems – EMS).

  • ISO 14001: Certification of Specification of EMS.

  • ISO 14040: Life Cycle Assessment as looking at the entire journey of the product that helps  companies understand environmental effect of the product at every step of the cycle.

The Service Quality Model (Storbacka, Strandvik, and Gronroos) & Profitability

• Zone of Tolerance: Customers have a range between “barely adequate” and “exceptional.” A single bad experience won’t ruin the relationship if exit barriers (bonds) are high.

• Types of Bonds: Legal (contracts), Technological, Economic, Social, etc.

• The Profitability Link: Increasing customer retention by just 5% can increase profitability by 25% to 85%. Why? Because acquisition costs drop, maintenance costs decline, price sensitivity lowers, and loyal customers refer others for free.

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