Merger Profitability in Unionized Oligopoly

Working Paper: CEPR ID: DP2738

Authors: Kjell Erik Lommerud; Odd Rune Straume; Lars Sørgard

Abstract: We examine how a merger affects wages of unionized labour and, in turn, the profitability of a merger under Cournot competition in differentiated products. If unions are plant-specific, we find that a merger is more profitable than in a corresponding model with exogenous wages. In contrast to the received literature, we find that it can be more profitable to take part in a merger than to be an outsider. For firm-specific unions, on the other hand, results are reversed.

Keywords: endogenous wages; merger profitability; trade unions

JEL Codes: J51; L13; L41


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
merger (G34)decrease in wages for plant-specific unions (J51)
decrease in wages for plant-specific unions (J51)increase in merger profitability (G34)
merger (G34)increase in wages for firm-specific unions (J59)
increase in wages for firm-specific unions (J59)decrease in merger profitability (G34)
presence of plant-specific unions (J51)wage dampening effects (J38)
wage dampening effects (J38)increase in merger profitability (G34)
highly employment-oriented unions (J51)minimal wage drop (J31)

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