The Unification of Labor

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The division of labor is a foundational organizing principle of
economic production. This paper develops a theory in which the
breadth of a productive unit–the set of tasks it can perform
effectively–is endogenous. Specialization emerges when task-specific comparative advantage is sufficiently strong, while broader productive units become optimal when technology increases the productivity of performing multiple tasks within the same unit. We characterize the equilibrium transition between these regimes and show that it depends on the interaction between task-specific productivity, general-purpose capability, and the costs of coordinating production across units.The framework therefore distinguishes technological improvements that raise productivity within existing tasks from those that expand the set of tasks a productive unit can perform effectively. The latter can change not only the productivity of production but its optimal organization: tasks previously allocated across specialized units may become optimally consolidated within broader units. We refer to this process as generalization and its limiting organizational configuration as unification of labor. Artificial intelligence provides a natural motivation for this mechanism because a sufficiently general-purpose system can perform heterogeneous tasks without the task-specific specialization that characterizes conventional production. The results provide a unified framework in which the division of labor and its partial unification arise as alternative
equilibrium responses to the technology of production.

Opoku-Agyemang, Kweku (2026). "The Unification of Labor." Development Economics X Paper Model Forty-Eight. 

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