aceSkill-biased technological change in the age of AI: a theoretical analysis of automation and inequality
This paper develops a general equilibrium model to analyze how artificial intelligence (AI)–driven automation reshapes productivity, labor markets, and income distribution. The model features heterogeneous workers, endogenous automation decisions, and irreversible skill investment choices, allowing a unified examination of displacement, complementarity, and skill-supply responses. Automation substitutes for labor in routine tasks, reducing demand and wages for low-skilled workers, while simultaneously enhancing…
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On 2026-04-02, a peer-reviewed paper presented a general equilibrium model of AI-driven automation with heterogeneous workers and irreversible skill investments. It finds automation reduces demand and wages for low-skilled workers in routine tasks while enhancing productivity where AI complements high-skilled labor, leading to higher aggregate output and total welfare but a higher skill premium and wider inequality.
The result matters for labor because it formalizes a growth paradox in which overall economic growth coexists with absolute welfare losses for workers below a critical ability threshold, suggesting technological progress is not Pareto improving. Uncertainty remains because conclusions rest on model assumptions about task substitutability and skill costs rather than measured labor-market data, and policy effectiveness depends on conditions derived within the model.
- Model includes heterogeneous workers, endogenous automation decisions, and irreversible skill investment choices.
- Automation substitutes for labor in routine tasks while complementing high-skilled labor in complex tasks.
- Paper evaluates three policy instruments: redistributive taxation, education subsidies, and technology policy, finding education subsidies most effective.
AI-driven automation that substitutes for routine tasks reduces demand and wages for low-skilled workers, causing absolute welfare losses for workers below a critical ability threshold and widening income inequality.
The rundown
The model specifies that automation substitutes for labor in routine tasks and complements high-skilled labor in complex tasks, with heterogeneous and irreversible skill investment costs determining outcomes.
The analysis derives a growth paradox where aggregate output and total welfare increase coexist with immiseration for vulnerable groups, and evaluates redistributive taxation, education subsidies, and technology policy against social welfare criteria.
Sources
- Peer-reviewedEconomics of Innovation and New Technology2026-04-02
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