01 GSP analysis
Look at what growth leaves behind
A campaign can deliver impressive sales while leaving the business almost where it started: new customers disappear, existing customers wait for the next discount, and the team buys more traffic. The sales are real, but the assets supporting the next round of growth may not have improved. Quality therefore requires looking beyond current volume to what remains afterward.
We propose four questions: Do intended customers understand the brand’s value more clearly? Do products and services deliver its promise? Is there a reason to choose it again? Has the business developed a reusable operating capability? Without answers, growth can become something sustained only by ever more spending. Loyalty growth focuses on relationships and capabilities that carry over into the next choice.
Loyalty does not mean that customers never compare alternatives or leave. It means remaining worth choosing in a competitive market. The brand must repeatedly create value rather than simply ask customers for commitment.
02 GSP analysis
Why behavior, preference and contribution must be read together
Growth from existing customers can appear more dependable than continuous acquisition, yet higher repeat revenue may come from deeper discounts, fewer available channels or one-off stockpiling. Recording every return as loyalty turns promotional dependence into an apparent relationship asset. Begin by asking why the customer returned, whether that reason would survive changed conditions, and what value the return created for both parties. Behavior, reasons for choosing and operating contribution belong in the same discussion, even when different teams own the underlying records.
In their 1994 conceptual paper, Dick and Basu describe loyalty through the relationship between relative attitude and repeat patronage, with situational factors and social norms also influencing that relationship. We use the publicly available abstract as a conceptual distinction, not as an experiment establishing an effect across all industries. Frequent purchasing need not indicate strong preference; liking a brand need not lead to frequent purchases. Identifying the missing connection helps a business choose between changing its offer, access, service or communication instead of automatically increasing promotion.
Consider an illustrative office-supply account. It might order repeatedly because delivery is reliable, or because its procurement system permits only one supplier. The first explanation is supported by an experienced benefit; the second includes an institutional constraint. If purchasing rules change, the conditions sustaining the two relationships differ. A team can ask which alternatives were considered and which criteria mattered, then compare interviews with ordering patterns and service records. A single satisfaction question cannot replace that investigation or establish what would happen if a credible alternative became available.
The same distinction changes expectations in infrequently purchased categories. A furniture customer who makes no further purchase for a long period may simply have no new need. Installation support, confidence in durability and a real willingness to introduce the product to someone facing a similar need may describe the relationship more usefully at that stage. Service renewals also require separating normal renewal, a discounted renewal and contractual constraints. Interpret the measure against the customer's demand cycle; imposing a monthly repeat target on every category can reward irrelevant activity and penalize healthy relationships.
This creates a shared operating responsibility. Brand teams clarify a competitive reason to choose; operations make it true in use; data teams distinguish customers and circumstances; finance examines the resources consumed in maintaining the relationship. None can prove loyalty solely through its own preferred metric. A repeat purchase is one piece of evidence. Scaling a practice becomes more defensible when purchasing behavior, preference, experience and contribution point in the same direction, and when the team has examined plausible explanations for disagreement. That discipline is useful before procuring another membership platform, because a platform cannot decide which form of customer value the business is trying to sustain.
03 GSP analysis
Make brand value specific to people’s lives
Begin by deciding whose problem the brand solves. A broad promise of quality becomes meaningful only in context. For a food brand serving busy families, the relevant questions might concern faster dinner preparation, clear ingredient information and convenient replenishment. Packaging, content and channels should support the same answer rather than tell unrelated stories.
Growth in brand perception is consequently about more than awareness. Customers need a specific understanding of when to think of the brand, why it fits and why to believe it. Interviews, service conversations and actual use can reveal those reasons. Express the core value as a claim that the product and service can demonstrate.
Do not evaluate the proposition only by asking whether people remember a slogan. Ask whether they can explain their reason for choosing in their own words, distinguish the brand from alternatives and confirm that their experience supports that understanding.
04 GSP analysis
Reading Costco membership measures before borrowing the model
Costco's fiscal 2025 annual report gives membership renewal rates of 92.3% in the United States and Canada and 89.8% worldwide. These are company results under a particular membership system and calculation, not general retail targets. The report describes a lagged observation window and excludes memberships expiring close to the reporting date. Membership counts and renewal measures also have different definitions. Any comparison must retain the fiscal year, geography and membership basis rather than moving the headline percentage into an unrelated company's scorecard.
The report connects membership-fee revenue changes to new sign-ups and higher fees. It also says that memberships acquired online, including through digital promotions, affected the aggregate renewal measure when they entered its calculation. The useful lesson is analytical: distinguish a changing acquisition mix from a changing customer relationship. A brand recruiting many promotional members may see its aggregate renewal rate decline partly because its customer mix changed. Restricting acquisition can raise a ratio without improving service. Cohort definitions should therefore precede conclusions about whether an initiative is working.
Paid membership and free points programs do different jobs. A paid offer must repeatedly justify a fee, while a free program can attract people whose demand is still uncertain. Before copying a membership model, list the benefits customers actually receive, the capability needed to deliver them, and the extent to which each benefit depends on continuing subsidy. Category, purchase frequency and service resources need to fit. If customers register only to claim one offer, treating every registration as a durable relationship overstates the base available for future growth and can encourage excessive commitments to benefits.
A practical review groups members by joining channel and joining period. Within each group, examine use of benefits, time to the next purchase, the need for additional incentives and resolution of service issues. Connect those observations to the same group's net revenue, merchandise contribution and service expense. Complete data may not be available immediately. Teams can begin by manually following one benefit or one customer group, provided they keep definitions consistent and identify members who have not yet had sufficient time to renew. Missing observation time should remain missing, rather than being coded automatically as success or failure.
Preserve the differences between business models. A regional brand may have a different assortment, purchasing capability, network density and visit frequency from Costco, as well as a different role for fee income. The transferable element is the way measures are explained and customer benefits are connected to operating choices, not necessarily the charging mechanism. If a benefit raises usage while displacing normal purchases, revisit its design. If renewal rises alongside complaints, determine whether the changes concern the same customers. Selective use of favorable numbers cannot establish that a relationship has become healthier, and a celebrated benchmark does not remove the need for local evidence.
Three evidence types answer different questions
Conceptual research, company disclosure and methodology
| Evidence | Can establish | Does not establish |
|---|---|---|
| Attitude and behavior research | A conceptual distinction | A program’s incremental effect |
| Costco annual report | Company membership definitions and results | A target for other brands |
| GSP membership perspective | A relationship-management proposition | That a specific benefit works |
Frameworks shape questions, disclosures clarify measures, and local validation supports investment.
- [1] Customer Loyalty: Toward an Integrated Conceptual Framework ↗1994 paper abstract: relative attitude and repeat patronage · 1994 · Accessed
- [2] Costco Annual Report 2025 ↗Membership (printed page 6) and Membership Fees (page 25) · 2025 · Accessed
- [3] Rethinking membership programs for this era ↗Relevant discussion in the article · 2025-03-26 · Accessed
05 GSP analysis
Manage relationships between transactions
A purchase occupies only part of a customer’s journey. Comparing options, learning to use a product, seeking support and waiting until the next need arises are all opportunities to build a relationship. If every message asks for another purchase, the brand becomes a source of promotions rather than a trusted partner.
Design relationships around what people need. New customers may need guidance, experienced customers may value relevant product advice, and customers facing a problem need a timely response. Membership programs can support these services without reducing every relationship to points and tiers. Useful benefits, understandable rules and dependable promises matter more than complex mechanics.
GSP’s earlier article on membership explores this shift from transaction tools to relationship management. A practical starting point is to improve one important moment: reduce confusion during first use or resolve a recurring issue for existing customers. Communication earns a future when it delivers a present benefit.
06 GSP analysis
Build the capability to deliver the promise
Value is lost when marketing promises convenience but buying is difficult, when a professional brand cannot explain product differences through customer service, or when a supposedly personalized program sends irrelevant messages. Quality growth requires brand strategy, operations and digital capability to appear on the same working map.
That map should identify the core customer, important journey stages, shared information, accountable owners and the route by which feedback reaches product and service teams. Technology should make the work more consistent and timely, rather than conceal unresolved business questions behind additional systems. A focused improvement is often easier to validate than replacing every tool at once.
GSP’s discussion of growth in perception, business operations and capability treats these as mutually supporting activities. Brand defines value, operations turn it into experience, and capability makes delivery dependable. When disconnected, investments can cancel one another out. When connected, each cycle of work is more likely to leave a useful asset.
07 Suggested actions
Make relationship investment a decision that can be tested
Quality growth must answer whether additional relationship work can be sustained. A company offering expensive incentives to every departing customer may report better retention while weakening operating contribution, especially if it describes incentive-led orders as natural repeat demand. The opposite approach—cutting support solely on the basis of current order margin—can lose customers with continuing needs who have not yet reached a stable buying pattern. Both errors compress time and customer differences into an average and make it harder to decide which service deserves continued investment.
Define a specific decision first, such as providing practical onboarding for customers making their first purchase in one category. Record staff time, channel expense, benefits and the delivery cost associated with additional orders. On the outcome side, examine resolved difficulties, successful first use and subsequent purchases that do not require further discounts. State which costs have been deducted when reporting operating contribution. A measure excluding central overhead, financing or taxes is not final profit. A reviewable calculation is more useful than an apparently precise lifetime-value estimate whose assumptions cannot be explained by the team responsible for the service.
Where possible, compare eligible customers receiving the service with a comparable observation group while holding product, price and channel conditions steady. When random assignment is impractical, describe differences in selection and examine behavior before the service began. Customers volunteering for support may already be more interested, so their higher purchases cannot all be attributed to the intervention. Service notes and interviews help explain mechanisms, but they do not replace an outcome comparison. Quantitative and qualitative records should strengthen each other, with each retaining the kind of question it can reasonably answer.
Write adjustment conditions before results arrive. If onboarding improves first-use confidence but does not reduce the relevant service problems, check whether it addresses the real obstacle. If experience improves without immediate repeat buying, check the category's demand cycle and observation period. If repeat buying rises only among customers receiving extra discounts, examine whether the benefit is creating additional value or simply advancing purchases. Considering these alternatives in advance reduces the temptation to select a success story after the event and lets an unsuccessful pilot still produce reusable learning.
An operating owner should remain accountable for the customer experience, with brand, service, data and finance agreeing on definitions and records. Every review should answer what customers gained, what the team learned and how contribution changed. Expand only when the benefit can be delivered consistently, the analysis can explain the observed change and the resource commitment is sustainable. These conditions may lead to a smaller but more dependable program. The quality of loyalty growth emerges from repeated operating choices; it is not established by launching a membership feature or announcing one campaign's repeat-purchase rate.
From customer value to an expansion decision
GSP analytical framework; not reported company outcomes
| Stage | Decision question | Observation |
|---|---|---|
| Reason to choose | Is the benefit relevant? | Interviews and alternatives |
| Experience delivery | Is the problem resolved? | Use and service records |
| Continued relationship | Does return require subsidy? | Cohort repeat demand |
| Operating contribution | Can the investment continue? | Comparable revenue and costs |
Explain the mechanism before replication; one average repeat rate cannot replace the operating decision.
- [1] Customer Loyalty: Toward an Integrated Conceptual Framework ↗1994 paper abstract: relative attitude and repeat patronage · 1994 · Accessed
- [2] Costco Annual Report 2025 ↗Membership (printed page 6) and Membership Fees (page 25) · 2025 · Accessed
08 Suggested actions
Use measures that challenge one another
Neither total membership nor repeat purchase alone proves loyalty growth. Membership may include inactive accounts, repeat sales may depend on discounts, and stated willingness to recommend may never become behavior. Customer understanding, experience, relationships and business results need to be checked against one another over a relevant business cycle.
Start with three layers of observation. First, assess understanding of the core value and resolution of important service problems. Second, follow retention, repeat purchases without special incentives, meaningful interaction and actual referrals within the same customer cohort. Third, assess the relationship between revenue, gross margin and the cost of serving those customers. Compare customer groups, channels and products separately so a changing mix is not mistaken for improved capability.
If repeat purchase rises after a membership service launches, also examine changes in discounts, seasonality and comparable customers who did not use the service. This is a proposed evaluation method, not a reported GSP project result. Measures become useful when the team can explain why they changed.
09 Suggested actions
Start with a cycle you can evaluate
A business need not wait for a complete system. Select one core customer group and one recurring problem, trace the journey from understanding to experience and repeat choice, then bring brand, operating and technology owners together to define the improvement, deliverables and measures. A clear scope helps protect the work from being buried by everyday tasks.
The first cycle should produce three things: a benefit customers can experience, a working method the team can reuse, and records that support evaluation. If results disappoint, examine relevance, experience and execution before deciding whether to expand or change course. Avoid replicating an unexplained success, and do not abandon useful relationship work solely because short-term numbers fluctuate.
The growth brands need is growth in which each action strengthens the customer’s reason to choose and the business’s ability to deliver. Sales are an outcome; trust and capability are foundations to develop continuously. Connecting them makes loyalty growth an observable, improvable part of daily management.
Keep creating value for customers and capability for the business.
THE EVIDENCE
Grounding the argument in evidence.
What the source reports
The paper’s abstract relates loyalty to relative attitude and repeat patronage, including situational influences.
This is a conceptual distinction, not proof that a particular membership program increased purchasing.
What the source reports
Costco reports fiscal 2025 renewal of 92.3% in the US and Canada and 89.8% worldwide, with calculation-window and cohort qualifications.
Interpret the ratio with its population and timing; these values are not targets for other sectors.
What the source reports
GSP’s earlier membership article discusses moving from transaction tools to relationship management.
This is a starting proposition; the effectiveness of a particular benefit still needs business-level evaluation.
DECISION POINTS
From understanding to testable action.
Reconstruct one customer cohort
Connect joining reasons, benefit use, service issues and later purchases for one cohort, identifying incomplete observation periods.
Observe whether the change persists within the same acquisition channel and joining period.
Choose one concrete experience improvement
Pilot support around first use or a recurring problem, retaining a comparable observation group and cost records.
Observe whether difficulties, unsubsidized repeat demand and contribution improve together.
Define expansion and adjustment conditions
Have operations, brand, service and finance agree on definitions and review ownership.
Observe whether delivery stays consistent after expansion and whether discounts or seasonality explain the apparent effect.
QUESTIONS TO EXPLORE
What still needs to be established?
- Do customers return primarily for preference, convenience or incentives, and what comparison evidence is missing?
- After a full demand cycle, does the relationship improvement still produce sustainable operating contribution?
Research sources
Synthesized from original reporting, institutional materials and research. Source observations, GSP interpretation and proposed actions are identified separately.
- Rethinking membership programs for this era ↗GSP · Relevant discussion in the articleAccessed
- A long-term perspective on business uncertainty ↗GSP · Relevant discussion in the articleAccessed
- Customer Loyalty: Toward an Integrated Conceptual Framework ↗Dick & Basu / Journal of the Academy of Marketing Science · 1994 paper abstract: relative attitude and repeat patronageAccessed
- Costco Annual Report 2025 ↗Costco Wholesale · Membership (printed page 6) and Membership Fees (page 25)Accessed
Prepared from the cited public sources with AI-assisted research. Reported facts and editorial interpretation are presented separately.
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