The post-Cold War era has seen an unprecedented move towards more legalization in international cooperation and a growth of third-party dispute settlement systems. WTO panels, the Appellate Body and investor-state dispute settlement cases have received increasing attention beyond the core trade and investment constituencies within governments. Scrutiny by business, civil society, academia, and trade and investment experts has been on the rise. This book asks whether we observe a transformation or a demise of existing institutions and mechanisms to adjudicate disputes over trade or investment. It makes a contribution to the question in which direction international economic dispute settlement is heading in times of change, uncertainty and increasing economic nationalism. In order to do so, it brings together chapters written by leading researchers and experts in law and political science to address the challenges of settling disputes in the global economy and to sketch possible scenarios ahead of us.

This book advances the idea that in order to address some of the criticisms against investor-state dispute settlement, a large majority of states have taken a 'normative' strategy, negotiating or amending investment treaties with provisions that potentially give more control and greater involvement to the contracting parties, and notably the home state. This is particularly true of agreements concluded in the past fifteen years. At the same time, there is a potential revival of the 'remnants' of diplomatic protection that are embedded in investment treaties since the beginning of the system. But why is the home state being brought back into a domain from which it was expressly excluded several decades ago? Why would a home state be interested in intervening in these conflicts? Is this 'new' role of the home state in foreign investment disputes a 'return' to diplomatic protection of its nationals, or are we witnessing something different?