This paper proposes and axiomatically characterizes a model of choice that builds on the criterion of partial dominance and allows for two types of avoidant behavior: *choice deferral* and *status quo bias*. These phenomena are explained in a unified way that allows for a clear theoretical distinction between them to be made. The model also explains the *strengthening of the attraction effect* that has been observed when deferral is permissible. Unlike other models of status quo biased behavior, the one analyzed in this paper builds on a *unique*, reference-independent preference relation that is acyclic and generally incomplete. When this relation is complete, the model reduces to rational choice.
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