Organized labor’s judicial, political, and public image is often associated with violence and anarchy. These descriptions are not spun out of whole cloth: violent uprisings that challenged the political and economic order were common in the early days of American labor unionism. But the...

We study sequential bargaining between two unions and a single firm. Parties bargain bilaterally and efficiently (over wage and employment). The unions' workforces can be substitutable ("tariff competition") or complementary ("tariff plurality" or "craft unionism"). If unions are substitutable,...