Abstract: How does labor regulation shape worker adjustment to import competition? We estimate the effect on French workers’ earnings of collective agreements during the rise of Chinese competition. Using a nationally-representative matched employer-employee panel and collective agreements data, we document that the negative effect of Chinese competition on earnings is exacerbated in more regulated industries. In addition, we find that this exacerbation effect is concentrated among workers in low-wage occupations, such as technical staff and skilled production workers.