Introduction -- Defining and Explaining Inclusion -- The Social Geography of Migration and Preferences -- Ideology, Electoral Incentives, and Inclusion Outcomes across Countries -- Vote-Based Inclusion and the Transformation of Party Politics -- Religious Parity versus Gender Parity -- Implications and Conclusion -- Appendix A. Electoral and Population Data -- Appendix B. Statistical Analyses and Descriptive Statistics -- Appendix C. Party Manifesto Coding Methodology.