The effect of GitHub Copilot on hourly wages among customer-support agents: evidence from an event-study design

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1. Introduction
This paper studies the labour-market impact of the technology described in the
title. We study how the adoption of GitHub Copilot affects hourly wages among customer-support agents. Using an event-study design covering the 2023–2024 period, we estimate the impact of access to GitHub Copilot on the outcome of interest. We find a null average effect masking large within-group variation. The results are robust to alternative specifications and are concentrated among less-experienced workers. We discuss implications for how GitHub Copilot reshapes the tasks and skills that make up these jobs.

3. Data and design
Design: event-study. The sample is drawn from administrative and survey
sources over the study window. Table 3 reports the main estimate.

4. Results
Main estimate (Table 3, column 4): the point estimate is -0.037
(standard error 0.021) [SEE PAGE 7]. Effect class:
null. Heterogeneity analysis on page 9 shows the effect concentrates
among less-experienced workers.

6. Conclusion
We discuss how the technology reshapes the tasks and skills composing these jobs.
