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- DPhil, 2015
- : Merton College
- Social and Political Philosophy, Applied Ethics
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- DPhil, 2001
- : Balliol College
- Social and Political Philosophy, Political Theory, Freedom and Liberty, Theories of Freedom, Equality, Government and Democracy, Distributive Justice, Social Contract
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- DPhil, 2021
- : Hertford College
- Asian Philosophy, Applied Ethics, Political Ethics, Social and Political Philosophy, Political Theory, History of Political Philosophy, Conceptions of Democracy, Justification of Democracy
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- DPhil, 2010
- : The Queen's College
- Social and Political Philosophy, Social Epistemology, Science and Values, Freedom of Speech