This book addresses why some ethnic minority migrant groups have better economic and political integration outcomes than others. The central claim is that social integration leads to trade-offs with economic and political integration. The logic behind this claim is that socially segregated groups may have difficulties interacting with mainstream society but will have more capacity for group mobilization. That mobilization can improve economic and political integration. In comparison, socially integrated groups may have greater capacity to interact with mainstream society but also less likelihood of developing significant group mobilization resources. As a result, this can limit their economic and political integration outcomes. Rahsaan Maxwell develops this argument with evidence from Britain and France, claiming that similar group-level dynamics exist despite numerous national-level contextual differences, and provides a brief extension of the argument to the Netherlands and the United States.