Online First Journal of Political Economy Online 25 Aug 2026The Impact of Unions on Nonunion Wage Setting: Threats and BargainingDavid A. Green · Ben M. Sand · Iain G. Snoddy · Jeanne TschoppThis paper estimates the impact of unions on nonunion wage setting in the United States over the period 1980–2010, distinguishing two channels through which unions affect nonunion wages: (1) a …