Service profit chain

The service profit chain proposes that internal service quality supports employee capability and engagement; those conditions improve service value; customer satisfaction can strengthen loyalty; and loyalty can contribute to revenue growth and profit. It does not add a mysterious fourth source of profit beyond revenue and cost. It explains one causal route through which those economics may improve.

Historical examples made the idea memorable. Southwest Airlines associated its culture with Herb Kelleher’s leadership and service values, but culture is created by systems and many people, not a CEO alone. The claim that the airline never made a loss across 50 years should be treated as dated promotional context, not a current fact about its 50, employees.

A Taco Bell analysis reported that the 20 per cent of stores with the lowest employee turnover produced twice the sales and 55 per cent higher profits than the 20 per cent with the highest turnover. The association is striking but does not by itself prove that reducing turnover caused the difference.

Customer satisfaction and loyalty are also non-linear. In historical Rank Xerox research using a five-point scale, 5 was high and 1 low. Customers rating satisfaction 4 out of 5 differed from those rating it 5 out of 5; those awarding 5 were reported as six times more likely to repurchase than those awarding 4. James Heskett argued that averages above 4 out of 5 may be required for strong loyalty. The exact relationship should be validated for the organisation and segment.

When to use it

• Map hypotheses linking employee conditions, delivered service, customer behaviour and economics.

• Diagnose where the chain is breaking rather than assuming all links are equally strong.

• Design a balanced measurement and improvement programme for service organisations.

Origins

James Heskett and colleagues introduced the service-profit-chain framework in a 1994 Harvard Business Review article, “Putting the Service-Profit Chain to Work.” They expanded it in the 1997 book The Service Profit Chain: How Leading Companies Link Profit and Growth to Loyalty, Satisfaction and Value.

What it is

Developments of the model

The model can be used in organisations of any size and is especially visible where employees interact directly with customers, such as retail, airlines and leisure. In other settings, internal technology, process and product reliability may mediate the relationship.

Treat each arrow as a testable hypothesis:

• internal quality → employee capability, satisfaction and retention;

• employee conditions → service productivity and value;

• service value → customer satisfaction;

• satisfaction → loyalty or desired behaviour; and

• customer behaviour → revenue, margin and profit.

A revenue-at-risk analysis can combine satisfaction and likelihood-to-recommend data to identify vulnerable accounts. In one engineering-company example, one-third of customers appeared likely to remain loyal and 20 per cent appeared at risk.

The analysis is a prioritisation device, not proof of individual intent. Use account evidence, behaviour and direct conversation before intervening.

How to use it

Map the chain for the specific business and define each construct operationally. Use workload, tools, autonomy, learning, fairness and manager support for internal quality; use reliability, effort and resolution for service value; use retention, share of wallet and contribution for customer economics.

Measure links over time and by comparable unit. Control for store location, demand, pricing, staffing, product quality and other confounders. Combine quantitative analysis with employee and customer research. Test interventions where feasible.

Nordstrom, founded in 1901 by John Nordstrom, is frequently used as an empowerment case. One story says a store accepted returned tyres even though Nordstrom had not sold them because a previous retailer at the site had. Another tells of Nordstrom’s first sale, a pair of display shoes sold for $12. These stories communicate discretion and customer care, but they are not controlled evidence of profitability.

More than 100 years later, the organisation’s practices included internal promotion and customer-friendly service rules. Its famous handbook was described as a 5 inch by 8 inch card containing 75 words, though the story may be partly apocryphal.

Nordstrom rules

Rule #1: use your good judgement in all situations.

There will be no additional rules.

Please feel free to ask your department manager, store manager or divisional general manager any question at any time.

The strategic principle is empowered judgement inside clear legal, ethical and operational boundaries. Empowerment requires training, information, staffing and accountability; a short rule cannot substitute for those conditions.

Some things to think about

• Ask whether the organisation has the capabilities, roles and conditions needed for employees to succeed—not merely whether it has “the right people.” Hiring rhetoric should not obscure system design or fair development.

• Identify customers whose revenue is at risk, then investigate causes directly. Employee engagement may matter, but product, price, reliability, competition or customer strategy may be the real driver.

Top practical tip

Draw the chain with named measures and owners for every link, then test where changes in one element precede changes in the next. Improve the weakest evidence-backed link rather than launching a generic happiness programme.

Top pitfall

Do not infer causation from high-performing stores with happy employees or blame employees for weak profit. Demand, product, pricing, staffing and management systems can drive both experience and financial outcome.

Further reading

• Heskett, J.L., Jones, T.O., Loveman, G.W., Sasser, W.E. Jr. and Schlesinger, L.A. (nineteen ninety-four). “Putting the Service-Profit Chain to Work.” Harvard Business Review.
• Heskett, J.L., Sasser, W.E. Jr. and Schlesinger, L.A. (nineteen ninety-seven). The Service Profit Chain. Free Press.