Are members of individualistic societies more likely to feel lonely? This seems intuitive because more people in such societies, for instance, renounce family life or live alone. However, although solitude and social isolation seem to increase loneliness, average loneliness tends to be lower in more individualistic, rather than more collectivistic, cultures. In this dissertation, we aim to resolve this “cultural paradox of loneliness” by examining how risk factors for loneliness may be influenced by cultural norms about social relationships (i.e., rules about what is commonly done in, or what should [not] be done in relationships). These define the standards that people compare their relationships to and steer how they relate to others, whi...