Final answer:
Robert Nozick's theory is classified as libertarianism, specifically his entitlement theory which focuses on just actions within a free market. It's included in his work Anarchy, State, and Utopia.
Step-by-step explanation:
According to your book, Robert Nozick's theory is classified as a form of libertarianism. Nozick is renowned for advocating a particular libertarian principle with his entitlement theory, which he detailed in Anarchy, State, and Utopia. His version of libertarianism suggests that the market is just when it allows for free exchanges that satisfy the conditions of justice in possessions, without requiring a specific distributive pattern. This theory is laid out in a three-part process focusing on acquisition, transfer and rectification of holdings. Therefore, if the world were completely just, Nozick's entitlement theory would fully define justice in terms of ownership.Nozick proposed a 3-part 'entitlement theory' and argued that just outcomes are those arrived at by the separate just actions of individuals, and a particular distributive pattern is not required for justice.