Firms can decide whether to produce some goods and services in-house or purchase them from the market. Increasingly, they are purchasing from the market—using subcontractors, temp agencies, and other outsourced labor. Low-wage workers' wages decline when they are outsourced. If firms are rent sharing, remaining workers' earnings might increase if there are more rents or fewer workers to share them with. However, little is known about how outsourcing affects remainers, and the consequent impacts on inequality. I analyze the impact of occupational layoff (OL) outsourcing on remainers and inequality using matched employer-employee data based on German social security records. Outsourcing increases remaining workers' long-run earnings by 6% in a sample of 260 OL outsourcing events. Remainers are also more likely to stay at the outsourcing firm. Higher earnings and lower separations is consistent with remainers receiving additional rents. Earnings gains are larger for workers in the bottom-half of the within-firm wage distribution. When comparing effects by collective bargaining agreements (CBAs), outsourcing increases remainers' long-term earnings by 6% in firms with CBAs, and lowers short-term earnings by 3% in firms without CBAs. These results are consistent with a model of wage setting where firms compensate remainers in the presence of a CBA. When there is no CBA, firms do not compensate remainers, and lower their wages. Analyzing the impact of outsourcing on wage inequality, outsourcing reduces within-firm inequality as the lowest-wage workers leave the firm and low-wage remainers are compensated. 11.7% of workers are part of an outsourcing event. Using Recentered Influence Functions, I show a 1% increase in the share of workers part of an outsourcing event increases earnings at the top of the distribution by approximately 10-15%, and the gini index by 10%. Increased earnings at the top of the wage distribution suggests prior estimates underestimate the impact of outsourcing on wage inequality by not accounting for increased wages among remainers, who are relatively high-wage.
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