Estey Centre for Law and Economics in International Trade
This organization "is an independent, interdisciplinary institution
focusing on research and training in issues related to international
trade, trade policy, law and economics, including trade-related
technical assistance and WTO capacity building for developing
economies." They undertake both independent and sponsored research.
Their research publications are available here, and they also publish
a refereed journal, "The Estey Centre Journal of International Law and
Trade Policy."
http://www.esteycentre.com/