This brings us to a related issue: a theory of justice generally specifies not only rights, but also duties. However, capability theorists have remained largely silent on the questions of who should bear the duties for the expansion of the selected capabilities. Nussbaum passionately advocates that all people all over the world should be entitled, as a matter of justice, to threshold levels of all the capabilities on her list; but apart from mentioning that it is the governments’ duties to guarantee these entitlements (2006: 70), she remains silent on the question who precisely should bear the burdens and responsibilities for realizing these capabilities. Yet as Onora O’Neill (1996: chapter 5) has argued, questions of obligations and responsibilities should be central to any account of justice.