Introduction

Investor-State arbitration has seen tremendous growth in the last decade. Most of the cases are administered by the World Bank Group's International Centre for Settlement of Investment Disputes (ICSID) under its constituent Convention[1] or Additional Facility Rules.[2] Established in 1966, ICSID registered cases at the rate of one or two new cases a year in its first 30 years. The rate of growth then quickened greatly, to about one new case a month in the period 1997 to 2002. That rate of growth more than doubled in 2003 and ICSID has since been registering 25 to 30 new cases ...