Screening of Foreign Direct Investment and the States’ Security Interests in Light of the OECD, UNCTAD and Other International Guidelines

This chapter analyses the concept of the “national security interest”, which is widely recognised as allowing a state to determine which areas of its economy are restricted or prohibited to foreign investors. This chapter seeks to identify what constitutes a threat for a state and how that threat is managed both domestically and internationally. Despite the recognition of a state’s right to take measures it considers essential to its security, there are limits. The rules established by the Organisation for Economic Co-operation and Development (OECD) and the United Nations Conference on Trade and Development (UNCTAD) and other international instruments are non-binding but can serve as a guide for states in determining the limits of the national security approach. International investment agreements can restrict the right of states to take security-related measures. Finally, customary international law, in light of the good faith obligation, can serve as a basis for assessing measures taken by a state and pave the way for a better balance between the rights of a state and those of foreign investors.