 The Shift Thesis is compatible with several understandings of the relevance of justice-based reasons above the threshold, among them: First, once a person is above the threshold of sufficiency there is no justice-based reason to benefit this person. This claim is often referred to as the “Negative Thesis” of sufficientarianism and has been much criticized (Casal 2007: 299–304). Second, other justice-based reasons apply above the threshold that are less weighty. This would mean that additional justice claims reflecting, for example, prioritarian or egalitarian reasoning (see  §4.2  and  §4.3)  can be valid. Third, the same justice-based reasons as below the threshold undergo a relative change of weight at the sufficiency threshold.