Given that one of the principal purposes of bilateral investment treaties (BITs) is to help countries attract investment flows (by protecting investments), it is only natural that the question has been raised whether they do, in fact, lead to higher investment flows. The main studies on this topic from the past decade are collected in The Effect of Treaties on Foreign Direct Investment: Bilateral Investment Treaties, Double Taxation Treaties, and Investment Flows (Oxford University Press, 2009), a volume I edited with Karl P. Sauvant.
Lisa E. Sachs,
Bilateral Investment Treaties and FDI Flows,
Available at: https://scholarship.law.columbia.edu/sustainable_investment_staffpubs/168