'Well before the current hype in Europe over investor-state dispute settlement, Poulsen pioneered the view that many countries signed up to investment protection treaties in less than rational ways. This book provides careful, country-specific evidence in support, with eye-opening stories from across the world, ranging from Pakistan and Ghana to the Czech Republic, Costa Rica and South Africa. Countries simply assumed the economic benefits of investment treaties and underestimated the possibility and costs of legal claims. World Bank and UN officials promoted the treaties and so did Western lawyers and advisors. Debunking the rational premise of much of the academic scholarship, this book should be compulsory reading for a new generation of policymakers and scholars alike, if only to avoid the mistakes of the past and find better ways to address today's increasingly complex challenges of economic diplomacy.' Joost Pauwelyn, Graduate Institute, Geneva