The main goal of this network is to bring together researchers, policy makers, and survey data producers to join efforts to improve the access, usability, dissemination and standards of the multiple and scattered survey data that exist on the economic, social and political integration of ethnic and migrant minorities (EMMs). This Action is both relevant and timely, as it will provide the mechanisms that will enhance the research capacity in Europe in the field of EMMs’ economic, social and political integration, and will allow a solid and evidence based transfer of knowledge to policymakers and civil society organizations about the key consequences and social processes related to the integration of EMMs in European societies and elsewhere. The COST network will focus at once on multiplying research capacity and on transferring knowledge to a multiplicity of audiences and stakeholders. The network will achieve these goals by compiling, documenting, archiving and pooling a large amount of data coming from various comparable studies conducted around Europe, thus providing the means to improve the empirical basis of high-quality research. Data will be made available on an web-based platform or Data Hub. The Action also includes a specific research training and educational component with the aim of guaranteeing that these coordinated efforts are carried over into the future through the next generations of researchers. The Action is backed by 47 proposers undertaking research in 20 European countries and the US and its composition is balanced in terms of gender, geography, type of organization and career stage.