1 A Global Regime for Investment
This chapter provides an overview of investment treaties. Investment treaties, often referred to as ‘international investment agreements’ (IIAs), are essentially instruments of international law by which states (1) make commitments to other states with respect to the treatment they will accord to investors and investments from those other states, and (2) agree to some mechanism for enforcement of those commitments. A fundamental purpose of investment treaties, as indicated by their titles, is to protect and promote investment. International investment treaties consist principally of three types: (1) bilateral investment treaties, commonly known as ‘BITs’; (2) bilateral economic agreements with investment provisions; and (3) other investment-related agreements involving more than two states. The chapter then considers the significance of investment treaties and argues that together they constitute an international regime for foreign investment.