O Omiunu and F Nganje, Subnational foreign relations in Africa: An Interdisciplinary Analysis of Nigeria and South Africa (Routledge: forthcoming).
Book chapters in peer-reviewed edited books
O Omiunu, ‘How do host states respond to Investment Treaty Law?: Some empirical observations’ (with M Sattorova and M Erkan), in A Rasulov and J Haskell (Eds.) International economic law: New voices, new perspectives, European Year Book of International Economic Law (Special issue), (Springer: 2020)
O Omiunu, ‘The evolving role of sub-national actors in international economic relations: A case study of the Canada-European Union CETA’ in F Amtenbrink, D Prévost, and R Wessel (Eds.) Shifting forms and levels of cooperation in international economic law: Structural developments in trade, investment and financial regulation, Netherlands Year Book of International Law, Vol. 48, (T.M.C. Asser Press: Den Haag, 2017).
O Omiunu, ‘Trade and agriculture in Nigeria: An examination of deficiencies in Nigeria’s framework for international trade in agricultural commodities’ in R Ako and D Olawuyi, (Eds.) Food and agricultural law: Readings on sustainable agriculture and the law in Nigeria (Afe Babalola University Press: Ado Ekiti, 2015).
O Omiunu, 'Restrictions of vessels for domestic trade under the Nigerian Cabotage Act: Extent and scope' in E Azinge and O Eruaga (eds.) Cabotage law in Nigeria (Nigerian Institute of Advanced Legal Studies: Abuja, 2012).
Articles in peer-reviewed academic journals
Omiunu, 'The evolution of foreign economic relations in Nigeria' (with I Aniyie), South African Journal of International Affairs, Vol. 25, Issue 3, 2018, pp. 365-392.
O Omiunu, ‘The evolving role of sub-national actors in the mechanisms for international trade interactions: A comparative analysis of Belgium and Canada’, Global Journal of Comparative Law, Vol. 6, Issue 2, 2017, pp. 105-137.
O Omiunu, ‘Special and differential treatment (SDT) provisions and the participation of developing countries in international trade: A case for reform’, Nigerian Bar Journal, Vol. 8, No. 1, 2013, pp. 43 – 70.
Omiunu, 'Amnesty in the Niger Delta: Vertical movement towards self-determination or lateral policy shift?' (RT Ako), Journal of Sustainable Law and Policy, Vol. 1, Issue 1, 2013, pp. 86-99.
O Omiunu, ‘Regional trade agreements and the neo-colonialism of the United States of America and the European Union: A critique of the principle of competitive imperialism’ (with VP Gonzalo), Liverpool Law Review, Vol. 32, 2011, pp. 225–235.
Occasional papers, book reviews, policy briefs, and think pieces
O Omiunu, (2019) The role of sub-national governments in ‘localising’ the UN SDGs inNigeria in symposium on Sustainable Development Goals, Trade, Investment, and Inequality co-hosted by AfronomicsLaw andDalhousie Law Journal Blog.
O Omiunu, (2019) Diversification of the Nigerian economy as a de-carbonisation pathway: opportunities and challenges in symposium on Law and Policy, and the Promotion of Investment in the Renewable-Energy Sector AfronomicsLaw.
O Omiunu, (2019) ‘Mainstreaming social concerns into the AfCTA negotiation process’, AfronomicsLaw.
O Omiunu (2019) Revisiting Nigeria’s absence from the AfCFTA AfronomicsLaw.
O Omiunu, (2018) 'Nigeria must wake up to the changing role of state governments', The Conversation Africa.
O Omiunu, (2015) Economic relations between Australia and the European Union: Law and Policy (Book Review) International Trade Law and Regulation, Issue 4, 131-132.
O Omiunu and I Aniye, ‘E-banking and payment systems: A selective appraisal of the liability of financial institutions’ (2009) Knowledge Review, Vol. 18 No. 1, 116 – 121.
O Omiunu and others, ‘Information and communication technology and the Nigerian rules of evidence' (2008) the University of Benin Law Journal,
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