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The Diffusion of Bilateral Investment Treaties, 1060-2000

  • Author(s): Elkins, Zachary
  • Guzman, Andrew T
  • Simmons, Beth
  • et al.
Abstract

Over the past forty-five years, bilateral investment treaties (BITs) have become the most important international legal mechanism for the encouragement and governance of foreign direct investment. Their proliferation over the past two decades in particular has been phenomenal. These intergovernmental treaties typically grant extensive rights to foreign investors, including protection of contractual rights and the right to international arbitration in the event of an investment dispute. How can we explain the diffusion of BITs? We argue that the spread of BITs is driven by international competition among potential host countries - typically developing countries - for foreign direct investment. We design and test three different measures of economic competition. We also look for indirect evidence of competitive pressures on the host to sign BITs. The evidence suggests that potential hosts are more likely to sign BITs when their competitors have done so. We find some evidence that coercion plays a role, but less support for learning or cultural explanations. Our main finding is that diffusion in this case is associated with competitive economc pressures among developing countires to capture a share of foreign investment. We are agnostic at this point about the benefits of this competiton for development.

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