This last panel is aimed at presenting examples of empirical research on the topic of migrant workers and trade unions while also focusing on the strictly interrelated issues of migrant workers voice and self-organization. The panel will consist of papers that start from different disciplinary perspectives and that build on very different methodological approaches (ranging from ethnographic studies to survey). Most contributions have a (international) comparative scope and underline relevant factors to explain trade union strategies towards migrant workers as well migrant workers attitude towards labour organizations.