Mismatch Is a Process, Not a Snapshot

A worker’s relationship with a job changes after the contract is signed. This chapter follows that relationship from hiring through learning, task allocation, mobility, and technological or physical change. The aim is to show where a mismatch can improve, persist, or change form—and why a degree or skills status measured at one moment cannot describe an entire career path.

A snapshot remains useful. It tells us how many people report a condition at a particular time. But it does not tell us whether the condition was present at entry, whether the worker learned into the role, whether the job changed, or whether capability was lost through underuse. Those transitions are where responsibility and possible remedies become visible.

At hiring, mismatch can be a starting condition rather than a final state

Imagine a worker entering a role with the formal education expected for the occupation but without experience in the employer’s systems. Their credential may match the job’s education requirement while their current skills do not yet meet every practical demand. A period of onboarding, observation, practice, and feedback can reduce that gap. The worker’s capability is partly developed and revealed through work; it is not delivered in finished form by a diploma.

The ESJS evidence is consistent with this adjustment pattern. Among overeducated workers, 18% reported being underskilled when they were hired, but only 4% reported being underskilled at the time of the survey. Among undereducated workers, the corresponding share fell from 27% at hiring to 8% later. The ILO authors interpret the decline as consistent with workers acquiring the skills they need through on-the-job training.

“Consistent with” is important. The survey evidence does not isolate training as the cause of the change. Workers may have changed tasks, gained experience, received informal help, moved within the firm, or revised their assessment of the job. Because the evidence combines current responses with retrospective reports about hiring, it cannot fully separate genuine learning from changes in memory or perception. The figures are also from the 2014 EU28 ESJS and are not universal transition rates. Their value is to make a static assumption implausible: initial underskilling need not remain unchanged.

Several mechanisms can produce the same observed improvement. A supervisor may give a new employee practice on the difficult task. A colleague may supply tacit knowledge that no course has documented. The employer may simplify the task or move the worker to a better-fitting assignment. The worker may become more familiar with the organisation without acquiring a transferable skill. These paths have different implications for future mobility. A worker who learns a general method gains option value beyond the current job; a worker who merely adapts to one local process may become more effective there without becoming more portable.

The transition can run in the other direction. A role may begin with a narrow set of tasks and later acquire new software, regulations, customers, or performance expectations. A worker who was matched at entry can become underskilled for a new technical requirement.