Due to the lack of a theory about the individual, the neoclassical theory fails in explaining social phenomena. To explain phenomena like the US housing bubble before 2008, this thesis uses approaches of economic sociology. Among these theories, the approaches by Coleman and Granovetterfail as well due to the lack of an elaborated theory of the individual. The sociology of Bourdieu with its concepts of field, capital and habitus offers a useful theory for analysing men in society. With this theory, the US housing bubble can be understood in its complexity as a social phenomenon.