Artificial Intelligence Policy and Wage Gaps: Evidence from China
A new round of technological revolution centered on artificial intelligence (AI) is reshaping the global labor market. Using panel data for 280 Chinese cities from 2011 to 2023, this study treats the establishment of National New-Generation Artificial Intelligence Innovation and Development Pilot Zones (AIIDPZs) as a quasi-natural experiment and employs a staggered difference-in-differences model to examine the impact of AI policy on wage gaps. The results show that the AIIDPZs significantly widen wage gaps with…

In brief
Researchers analysed panel data for 280 Chinese cities covering 2011 to 2023. They treated the creation of national AI innovation and development pilot zones as a quasi-natural experiment and applied a staggered difference-in-differences model. They found that the zones significantly widened wage gaps within cities.
The result matters because AI industrial policy is often judged on innovation and growth, while this study shows distributional costs inside the cities it targets. The authors argue that income distribution should be part of policy evaluation. The abstract gives no effect sizes, so how large the widening was is not stated here.
Main points
- The study uses city-level panel data for 280 Chinese cities from 2011 to 2023.
- Pilot zone establishment is treated as a quasi-natural experiment in a staggered difference-in-differences design.
- Three channels are identified: innovation technology benefit bias, industrial restructuring, and technology diffusion.
- Effects are stronger in eastern cities, cities with well-developed digital infrastructure, and cities with lower human capital.
The problem
Designation as a National New-Generation AI Innovation and Development Pilot Zone significantly widened wage gaps within Chinese cities, with stronger effects where human capital was lower.
The rundown
The design compares cities as they received AI pilot zone status at different times. This lets the authors estimate the policy's effect on within-city wage inequality while accounting for the staggered rollout.
Mechanism tests point to three pathways. These are a bias in who benefits from innovation technology, industrial restructuring, and technology diffusion. Together they help explain why the policy widened wage gaps.
The effects were not uniform. They were stronger in eastern cities, in cities with well-developed digital infrastructure, and in cities with lower human capital.
The authors recommend including income distribution effects in policy evaluation. They also call for stronger skills training, mechanisms for sharing innovation gains, locally tailored support, and coordination of AI policy with employment policy.
Sources
- Peer-reviewedAsia Pacific Economic and Management Review2026-10-14
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The debate