The Learning Economy· 7 min read

The Half-Life of a Qualification

Static credentials age badly in an economy that rewrites roles every few years.

Dr. Michael D’Rosario
Host & Editor · July 24, 2026
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Static credentials age badly in an economy that rewrites roles every few years.

A qualification has traditionally served as a durable signal. It tells an employer that an individual has completed a defined body of study, met an assessed standard and acquired a recognised foundation for professional work. For many occupations, this remains indispensable. We should want doctors, engineers, teachers, accountants, tradespeople and other professionals to have undertaken rigorous and accredited education.

Yet the relationship between a credential and occupational capability is becoming less stable.

The problem is not that qualifications have ceased to matter. It is that too many institutions still treat them as though they settle a question that they only begin to answer. A degree, diploma or certificate records what a person was assessed to know at a particular point in time. It does not, on its own, show what they can do now, what they have learned since, how they respond to changing tools, or whether their judgement is adequate for an unfamiliar situation.

In an economy where tasks, technologies and organisational structures are revised more frequently, the informational value of a static credential declines over time. Its half-life is becoming shorter.

This is not an argument against education. It is an argument for a more honest account of what education is for, and for institutions that support learning throughout working life rather than concentrating recognition at its beginning.

Credentials as signals

Labour markets have always faced an information problem. Employers cannot fully observe a candidate’s capability before employment. Applicants know more about their own skills, effort and potential than an employer does. Qualifications help address this asymmetry by providing a recognisable signal.

They do several useful things at once. They show persistence. They indicate that a person has met a threshold set by an education provider or professional body. They provide a common language for recruitment. They can support pathways for people who do not have informal networks or family connections into a profession. For regulated occupations, they are part of the social contract that protects the public from incompetence and harm.

None of this should be dismissed.

The difficulty arises when employers treat a qualification as a comprehensive and permanent measure of capability. It is neither. A credential is a historical record, not a full account of current competence. Its value depends on the stability of the knowledge and tasks to which it relates.

In some fields, that stability remains relatively high. A strong grounding in anatomy, mathematics, engineering principles, accounting standards or legal reasoning remains valuable across time. Even here, however, practice changes. New evidence, regulation, methods and technologies alter what competent work requires.

In other fields, occupational content changes quickly. The tools used in marketing, software development, data analysis, design, customer service, research, logistics and administration may look materially different within a few years. AI has accelerated this process by changing how information is produced, assessed and applied across a wide range of roles.

The issue is not that knowledge becomes worthless. The issue is that knowledge must be renewed, contextualised and put into practice.

Roles are bundles of tasks

One reason the credential debate is often confused is that jobs are treated as fixed categories. A job title suggests a stable set of responsibilities: analyst, manager, teacher, policy adviser, lawyer, designer, programmer or administrator. But jobs are not stable objects. They are bundles of tasks, relationships, tools and accountabilities.

Technology usually changes work first by altering tasks rather than abolishing entire occupations. A language model may draft a first version of a report, but it does not determine the organisation’s priorities, evaluate evidence in context or take responsibility for a recommendation. A coding assistant may produce working code, but it does not necessarily understand the business problem, system architecture, security requirements or consequences of failure. A diagnostic system may identify patterns, but clinical care still requires communication, ethical judgement and accountability.

As particular tasks become easier or more automated, the value of other capabilities rises. Problem formulation, verification, communication, ethical reasoning, domain expertise, relationship management and the ability to work with uncertainty become more important. The professional who knows how to use a tool is not necessarily the professional who knows when its output should be rejected.

This is why a credential based on a fixed curriculum can lose some of its signal over time. It may show that a person once acquired relevant foundational knowledge, but it may not demonstrate their current ability to perform the changing mix of tasks that a role now requires.

The economy does not need fewer educated people. It needs better ways to recognise ongoing learning.

The risk of credential inflation

When formal qualifications are used as broad sorting devices, their requirements can expand beyond what a role genuinely needs. Jobs that once offered workplace training begin to require university degrees. Employers use credentials to reduce recruitment risk, even where the connection between the qualification and the work is weak. Applicants respond by seeking more credentials, often at considerable cost.

This process can create a form of credential inflation. The qualification becomes necessary to compete for a role, but does not necessarily make the role more productive or improve the quality of the work. It may instead shift risk from employers to workers, who must invest time and money before they can access an opportunity.

The consequences are uneven. People with financial resources, social support and familiarity with educational institutions are better placed to accumulate formal qualifications. Those who have acquired strong practical skills through work, caring responsibilities, community leadership or informal learning may be excluded because they cannot present capability in the format employers have come to expect.

There is a further problem. An employer that relies heavily on credentials can neglect its own responsibility for development. Rather than investing in learning, mentoring and progression, the organisation tries to purchase fully formed capability in the labour market. This approach is expensive, fragile and often ineffective, particularly in areas where skill shortages are persistent.

A more productive approach is to assess both what a person has learned and their capacity to continue learning.

The case for foundation and renewal

It would be a mistake to respond by replacing qualifications with a loose collection of short courses and digital badges. A fragmented market for credentials can create its own opacity. If every provider issues its own micro-credential, employers may face more signals but less clarity about what any signal represents.

Formal education still has distinctive value. It can provide intellectual foundations, time for sustained study, exposure to different perspectives, supervised practice and a setting in which people learn to reason beyond immediate workplace demands. The best education is not narrowly vocational. It develops the capacity to evaluate evidence, understand institutions, communicate with others and reconsider one’s own assumptions.

These capabilities do not expire in the same way as software proficiency or platform knowledge. Indeed, they may become more valuable as technical systems make routine production easier.

But foundations need renewal. A qualification should be seen as the first recognised stage of professional development, not as a lifetime warranty. This has implications for universities, employers, professional bodies and governments.

Universities need stronger relationships with workplaces, not simply through employability language but through sustained mechanisms for graduates to return for updated learning. Professional bodies need continuing development requirements that are meaningful rather than perfunctory. Employers need to provide time, support and structured opportunities for workers to update their skills. Governments need to consider whether education financing and workforce policy adequately support people who need to retrain part way through a career.

The cost of this renewal cannot be left entirely to individuals. If technological and organisational change produces benefits for firms and the wider economy, then institutions that benefit should share responsibility for the learning required to manage that change.

Assessment needs to change as well

The half-life of a qualification is not only a question of what people learn. It is also a question of how learning is assessed.

If assessment rewards the reproduction of information that is now readily accessible through digital tools, its signal will weaken. The relevant challenge is not simply preventing students or workers from using AI. It is designing assessment around the forms of judgement that remain important when AI is available.

This may include the ability to frame a problem clearly, assess the quality of evidence, explain assumptions, test a generated response, communicate to a particular audience and justify a decision under scrutiny. It may involve practical demonstrations, supervised work, case analysis, oral defence and longitudinal portfolios rather than reliance on a single written task.

The point is not to make education harder for its own sake. It is to make assessment more closely aligned with competent practice.

This applies in workplaces too. Recruitment systems that rely heavily on keywords, degrees and years of experience are poorly suited to a period of rapid change. Organisations need more sophisticated ways of assessing practical capability, learning capacity and professional judgement. A candidate may have a recently completed qualification but limited ability to apply it. Another may have an older credential but substantial evidence of continued learning, responsible practice and adaptability.

The distinction matters.

A labour market built for learning

A society that asks workers to adapt continuously must make continuous learning realistic. It is not enough to advise people to reskill while offering little time, income support or access to credible education. Workers with insecure employment, caring responsibilities or limited financial resources face constraints that cannot be solved through individual motivation.

The policy challenge is therefore institutional. It concerns paid learning leave, affordable and high-quality mid-career education, portable recognition of skills, support for apprenticeships and workplace training, and strong pathways between vocational and higher education. It also concerns fair access to the work through which capability is developed in the first place.

Employers have a direct interest in these arrangements. The firms best placed to use new technology will not be those that recruit only people with the latest credentials. They will be those that can develop and retain workers, make their knowledge visible and create roles in which people can extend their capability over time.

The economy may rewrite jobs quickly. It does not follow that workers should be treated as disposable versions of a previous skills profile.

Beyond the static credential

Qualifications will remain important, particularly where public safety, professional standards and specialist knowledge are at stake. Their continuing value should not be understated.

But credentials are becoming less sufficient as single, enduring signals of competence. In a changing economy, a person’s capability is better understood as a combination of foundational education, current practice, verified experience, demonstrated judgement and ongoing learning.

That is a more demanding standard for individuals, but it should also be a more demanding standard for institutions. Employers cannot simply ask for perpetual adaptation while treating training as an optional cost. Education providers cannot rely on one-off credentials while ignoring the changing work of graduates. Governments cannot present retraining as a private responsibility when the benefits of change are distributed unevenly.

The half-life of a qualification may be shortening. The appropriate response is not to devalue education. It is to build a labour market in which education is treated as a continuing public and organisational responsibility, rather than a credential acquired once and carried alone.

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