In this essay, we address an important problem in the ethics of cultural engagement: the problem of giving a systematic account of when and why outsider use of insider cultural material is permissible or impermissible. We argue that many scholars rely on a problematic notion of collective ownership even when they claim to be disavowing it. After making this case, we motivate an alternative framework for thinking about cultural exchange, which we call the core interests framework. We conclude with some (...) reflections on how this framework helps to raise interesting questions about the most promising accounts of wrongful cultural appropriation. (shrink)