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Data · dataset · 2026

Does Artificial Intelligence Shape Within-Firm Wage Inequality?

Listed in Teesside University Research Data Repository

This replication package accompanies the paper “Does Artificial Intelligence Shape Within-Firm Wage Inequality?”, which studies how the adoption of artificial intelligence (AI) affects wage inequality inside Chinese firms.

Description

The central research hypothesis is that AI adoption changes a firm’s internal labor demand and pay structure, and that this change narrows the wage gap between management and ordinary employees. More specifically, the paper hypothesizes that AI adoption reduces within-firm wage inequality primarily by shifting labor demand toward high-skilled workers, thereby altering the relative compensation of different employee groups.

The analysis is based on panel data on Chinese A-share listed companies from 2007 to 2023. The main dependent variable is a firm-level pay gap, defined as the absolute difference between average management compensation and average ordinary-employee compensation. A smaller value therefore indicates lower within-firm wage inequality.

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The key independent variable is lnai, the log of AI-related keyword frequency in firms’ annual reports. This is a text-based measure of AI application: firms that discuss AI more intensively in their annual reports are interpreted as having greater AI adoption or AI-related activity. The DID treatment variable is treat_post, the interaction between treatment status and the post-policy period.

The policy context is the National AI Innovation Application Pilot Zones (NAAPZ), using official lists from the Ministry. The DID design compares firms in pilot zones before and after the policy with firms not affected by the policy, conditional on fixed effects and controls. The empirical analysis is organized around several tables and Stata do-files.

Table 1 reports descriptive statistics for the main variables. Table 2 presents baseline OLS regressions. Column (1) includes industry and year fixed effects; column (2) includes firm and year fixed effects.

Table 3 reports the main DID results. Table 4 presents the dynamic DID or event-study specification. Tables 5 and 6 explore mechanisms.

Tables 7 to 9 examine heterogeneity. Table 10 reports robustness tests.

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Catalogue records · 1

Topics

From keywords
Applied economics · Earth & Environmental Science · Economics & Finance
Inferred from text
Tabular 65%

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Provenance · 1 source records, 9 field assertions
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Teesside University Research Data Repositoryoai:data.mendeley.com/gjb2hhc4w3.116 h agoJSON v1
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