Martha Nussbaum sets out in “Frontiers of Justice” to challenge the Social Contract tradition, the current paradigm in political philosophy insofar as it relates to theories of justice, by defending her own approach which she refers to as the “capabilities approach.” She begins by describing the historical development of the Social Contract tradition, focusing on certain writings of philosophers such as Hobbes, Locke, Hume, Kant, and most recently, John Rawls.
After briefly describing how the Social Contract tradition has come to exist in its contemporary form following the influences of John Rawls, Nussbaum levels some very strong criticisms against this philosophical tradition. In particular Nussbaum focuses on how proponents of the Social Contract tradition have (not) responded to the needs and interests of disabled individuals, the global community/nationality, and non-human species.