 Gilbert (2018) develops not a demand theory of rights, but a theory of a special class of rights that she calls “demand-rights.” In her formulation, “X has a demand-right against Y if and only if X has the standing to demand of Y that Y φ.” (2018, 70) Gilbert’s paradigm of a demand-right is a promissory right: the promisee has the standing to demand performance from the promisor, meaning that the promisee has the authority to demand that the promisor do what she promised to do. Gilbert explains this standing to demand in terms of her theory of joint commitment (2013).