You've heard of first class, business class and economy. But behind the scenes, airlines use a more intricate hierarchy of fare classes, which ultimately determine how much you pay and what you get.

Sophorntavy Vorng, Beyond the Urban-Rural Divide: Complexities of Class, Status and Hierarchy in Bankok, Asian Journal of Social Science, Vol. 39, No. 5 (2011), pp. 674-701 ...

Racism, both past and present, remains at the forefront of the American national conversation. Now, a new book by a Pulitzer Prize-winning journalist examines how hierarchy and class are ...

Michael Hout, Robert M. Hauser, Symmetry and Hierarchy in Social Mobility: A Methodological Analysis of the CASMIN Model of Class Mobility, European Sociological Review, Vol. 8, No. 3, Special Edition ...