"Psychology, Relativism, and Politics" attempts to build into current standards for political equity a theory of the psychological "price" that different personalities have to pay within different governmental systems in order to operate maximally. In his book Kreml argues that fundamental epistemological arguments over the nature of analytic and synthetic cognitions (as debated by, e.g., Kant and Hegel) are and have been in fact debates that reflect different psychological preferences for different forms of knowledge, and that standards of equity have to apportion psychological "prices" too. Noting the materialistic epistemological roots of both liberal and Marxist thought, and noting the absence of cognitive differentiation in the theoretical perspectives of both schools, Kreml shows how postmaterial politics will have to engage consciously those psychologically based differentiations that account for the ways in which political systems are structured and, ultimately, the ways in which such structures understand, take account of, and interpret postmaterial political issues.