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Occupational Uniqueness and Wage Growth

R. Vestrelli, A. Fronzetti Colladon · 2026 · arXiv (Cornell University)

DOI: 10.48550/arxiv.2610.28133 · cited by 0 works (OpenAlex) · open-access PDF

French

Ces changements dans le contenu des tâches professionnelles peuvent avoir des implications économiques différentes selon que les tâches gagnées ou perdues sont spécifiques à l'emploi ou déjà répandues dans l'économie. Les mesures existantes du changement des tâches professionnelles sont largement abstraites de cette distinction, en traitant les occupations comme des ensembles de tâches autonomes plutôt que de tenir compte de la façon dont les tâches sont réparties entre les occupations. Nous développons un cadre pour mesurer une dimension distincte du groupe de tâches d'une occupation par rapport aux autres occupations. En utilisant un ensemble de données harmonisé de tâches spécialisées ou de contenu de tâches inférieures: la structure des tâches. En utilisant ce nouveau cadre qui suit les tâches entre les occupations et au fil du temps, nous

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Abstract

Changes in occupational task content may have different economic implications depending on whether the tasks gained or lost are occupation-specific or already widespread across the economy. Existing measures of occupational task change largely abstract from this distinction, treating occupations as self-contained task bundles rather than accounting for how tasks are distributed across occupations. We develop a framework to measure a distinct dimension of occupational change, one that goes beyond task expertise or task content: task structure. Using this new framework that tracks tasks across occupations and over time, we separate changes in task quantity from changes in occupational uniqueness, defined as the distinctiveness of an occupation's task bundle relative to other occupations. Using a harmonized dataset of 196563 task statements from the Dictionary of Occupational Titles and O*NET spanning 1977-2018, we measure task diffusion, occupational uniqueness, and distinct dimensions of task addition and removal. Occupations that become less unique are also associated with lower wage growth, and the wage associations of task additions and removals depend on how widely the affected tasks are performed elsewhere. Adding highly diffused tasks is associated with lower wage growth, as is removing occupation-specific tasks. At the economy-wide dimension, however, the pattern differs: the addition of new tasks is positively associated with wage growth, whereas the removal of tasks is negatively associated with it. Taken together, these results show that similar changes in the number of tasks performed by an occupation can reflect economically distinct processes. Incorporating the cross-occupational distribution of tasks, therefore, provides a richer account of occupational change and its relationship to the wage structure.

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Topics: Task (project management), Wage, Optimal distinctiveness theory, Measure (data warehouse), Dimension (graph theory), Computer science

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