'Spanning nearly a century, Eidlin's book represents the sort of ambitious cross-national comparative historical analysis that has fallen out of favor in political science yet that can offer rich theoretical insights and fresh descriptive facts that can be mined for scores of future studies.' Alexander Hertel-Fernandez, The Journal of Politics
Part I. Explaining Union Density Divergence: 1. Structural and individual explanations; 2. Policy explanations; 3. Working class power in the United States and Canada; Part II. Political Articulation and the Class Idea: 4. Party–class alliances in the United States and Canada, 1932–1948; 5. Repression and rebirth: red scares and labor's postwar identity, 1946–1972; 6. Class versus special interest: labor regimes and density divergence, 1911–2016; Appendix A: data; Appendix B: archival sources; Appendix C: permissions.