| Foreword |
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xv | |
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| Preface |
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xix | |
| Acknowledgments |
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xxiii | |
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xxv | |
| Introduction |
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1 | (13) |
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1.1 The scope of this book |
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1 | (10) |
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1.2 The structure of this book |
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11 | (3) |
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1 The concept of customary international law |
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14 | (46) |
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1.1 Introductory remarks: this book examines custom in the context of general international law |
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15 | (3) |
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18 | (12) |
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1.2.1 Custom is one of the sources of international law |
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18 | (3) |
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1.2.2 The informal (and mysterious) way by which customary rules emerge |
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21 | (3) |
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1.2.3 The role of consent in the development of customary rules |
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24 | (2) |
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1.2.4 Is there such a thing as `tacit' consent? |
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26 | (4) |
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1.3 The double requirement of State practice and opinio juris |
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30 | (9) |
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1.3.1 The traditional and modern approaches regarding the relevance of these two elements |
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30 | (5) |
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1.3.2 The position adopted by investor-State arbitration tribunals and States |
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35 | (4) |
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1.4 A customary rule needs to be proven by the party that alleges it |
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39 | (3) |
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1.5 The role of judges in the formation and identification of customary rules |
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42 | (13) |
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1.5.1 A role in revealing the existence of customary rules |
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43 | (1) |
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1.5.2 A role in the development of customary rules |
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44 | (3) |
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1.5.3 The practice of investment tribunals |
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47 | (8) |
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1.6 The role of scholars in the identification of custom |
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55 | (5) |
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2 Dancing with the sources: the fascinating story of the relative importance of custom and treaties at different times in the evolution of international investment law |
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60 | (56) |
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60 | (1) |
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2.1 The origin and the development of basic investment protections under custom |
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61 | (8) |
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2.1.1 The historical foundation of the minimum standard of treatment |
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61 | (6) |
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2.1.2 The emergence of a general prohibition against expropriation without compensation |
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67 | (2) |
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2.2 Challenges to existing customary rules on investment protection |
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69 | (10) |
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2.2.1 A concerted attack led by newly independent States in the 1960s and 1970s |
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70 | (4) |
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2.2.2 An impact assessment of the attack on existing rules |
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74 | (3) |
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2.2.3 One war casualty: the Hull formula |
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77 | (2) |
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2.3 From a lack of consensus on existing custom to the proliferation of BITs |
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79 | (8) |
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2.3.1 Combat fatigue or the sorry state of custom after the attacks |
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79 | (2) |
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2.3.2 The roaring 1990s or the `treatification' of international investment law |
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81 | (3) |
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2.3.3 Change of heart: the paradox of why developing States started signing BITs |
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84 | (3) |
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2.4 Does custom still matter today in this age of treatification? |
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87 | (4) |
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2.5 The `return' of custom? |
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91 | (1) |
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2.6 A brief outline of existing customary rules of international investment law |
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92 | (24) |
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2.6.1 Scholarship on the existence of any such customary rules |
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92 | (4) |
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2.6.2 Minimum standard of treatment |
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96 | (1) |
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2.6.2.1 A firmly established rule |
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97 | (7) |
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2.6.2.2 With an imprecise content |
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104 | (6) |
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2.6.3 General prohibition against expropriation without compensation |
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110 | (6) |
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116 | (176) |
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116 | (1) |
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3.1 Whose practice matters? |
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117 | (11) |
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3.1.1 Non-State actors do not directly participate in the creation of customary rules |
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118 | (7) |
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3.1.2 The international legal personality of corporations and their international law-making powers |
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125 | (3) |
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3.2 The basic requirements of State practice |
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128 | (24) |
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3.2.1 Uniform and consistent practice |
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129 | (4) |
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3.2.2 Extensive and representative practice |
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133 | (5) |
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3.2.3 The time requirement |
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138 | (2) |
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3.2.4 One illustration: Is the fair and equitable treatment standard uniformly and consistently found in BITs? |
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140 | (1) |
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3.2.4.1 The position adopted by tribunals and scholars on the customary status of the FET standard |
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140 | (5) |
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3.2.4.2 State practice is general, widespread and representative |
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145 | (3) |
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3.2.4.3 State practice is not uniform and consistent |
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148 | (4) |
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3.3 Manifestations of State practice |
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152 | (131) |
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3.3.1 Introductory remarks |
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152 | (1) |
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3.3.1.1 The publicity requirement |
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152 | (1) |
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3.3.1.2 Omissions count as practice |
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153 | (2) |
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3.3.2 The various forms of State practice and their relative weight |
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155 | (4) |
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3.3.3 International treaties |
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159 | (1) |
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3.3.3.1 Interaction between custom and treaties under general international law |
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160 | (3) |
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3.3.3.1.1 Treaties can contribute to the formation of new rules of customary international law |
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163 | (5) |
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3.3.3.1.2 A treaty can codify existing customary rules |
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168 | (3) |
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3.3.3.2 Interaction between custom and treaties under international investment law |
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171 | (1) |
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3.3.3.2.1 Can rules contained in BITs transform into customary rules? |
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172 | (1) |
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3.3.3.2.1 The position of tribunals and scholars |
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172 | (4) |
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3.3.3.2.1.2 The necessary conditions for such a transformation to occur |
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176 | (6) |
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3.3.3.2.1.3 One illustration: Has the fair and equitable treatment standard clause transformed into a customary rule? |
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182 | (6) |
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3.3.3.2.2 When taken together do all BITs represent the new custom? |
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188 | (1) |
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3.3.3.2.2.1 The arguments advanced by those supporting the proposition equalling custom and BITs |
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189 | (3) |
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3.3.3.2.2.2 A few basic arguments against the proposition |
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192 | (4) |
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3.3.3.2.2.3 BITs do not fulfil the double requirements of uniform and consistent State practice and opinio juris |
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196 | (4) |
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3.3.3.2.2.4 States reject the proposition that BITs represent custom |
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200 | (2) |
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202 | (3) |
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3.3.4 Statements by States |
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205 | (1) |
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3.3.4.1 Statements under international law |
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205 | (1) |
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3.3.4.1.1 Are statements evidence of State practice? |
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206 | (4) |
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3.3.4.1.2 The relative weight to be given to statements depends on the circumstances |
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210 | (1) |
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3.3.4.1.3 Typology of different statements |
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211 | (5) |
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3.3.4.2 Statements in Investor-State arbitration |
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216 | (1) |
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3.3.4.2.1 Introductory remarks: Some types of statements that are important in international law are less relevant in investor-State arbitration |
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217 | (3) |
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3.3.4.2.2 State pleadings in arbitration proceedings |
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220 | (1) |
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3.3.4.2.2.1 The relative weight to be given to pleadings depends on the circumstances |
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221 | (3) |
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3.3.4.2.2.2 Arbitral awards examining pleadings |
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224 | (3) |
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3.3.4.2.3 Interventions of non-disputing treaty parties during arbitration proceedings |
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227 | (2) |
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3.3.4.2.3.1 The relative weight to be given to such interventions depends on the circumstances |
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229 | (2) |
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3.3.4.2.3.2 Arbitral awards examining such interventions |
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231 | (4) |
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3.3.4.2.4 Official statements made by parties to a treaty |
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235 | (1) |
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3.3.4.2.4.1 The relative weight to be given to official statements depends on the circumstances |
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235 | (2) |
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3.3.4.2.4.2 Arbitral awards examining such statements |
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237 | (8) |
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3.3.4.2.5 Joint statements by parties to a treaty on matters of interpretation |
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245 | (2) |
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3.3.4.2.5.1 The relative weight to be given to joint statements depends on the circumstances |
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247 | (1) |
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3.3.4.2.5.2 Arbitral awards examining such statements |
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248 | (3) |
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3.3.4.2.6 Model BITs adopted by States |
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251 | (6) |
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3.3.5 Activities within international organizations |
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257 | (1) |
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3.3.5.1 State conduct within international organizations can be evidence of State practice |
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258 | (3) |
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3.3.5.2 The practice of international organizations and the formation of customary rules |
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261 | (6) |
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3.3.6 Internal national practice of States |
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267 | (1) |
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268 | (1) |
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268 | (5) |
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273 | (1) |
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3.3.6.3.1 International law |
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273 | (6) |
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3.3.6.3.2 Investor-State arbitration |
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279 | (4) |
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3.4 Investment arbitration arbitral awards |
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283 | (9) |
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292 | (59) |
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292 | (1) |
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4.1 Opinio juris under International law |
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293 | (28) |
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4.1.1 A well-recognized requirement but nevertheless difficult to assess |
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293 | (4) |
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4.1.2 Scholarly battle on the relevance of opinio juris |
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297 | (5) |
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4.1.3 The chronological paradox and one possible solution |
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302 | (3) |
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4.1.4 The reasons why it is necessary to demonstrate opinio juris |
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305 | (4) |
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4.1.5 Manifestations of opinio juris |
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309 | (2) |
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4.1.5.1 Opinio juris can be demonstrated by State practice |
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311 | (5) |
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4.1.5.2 The problem of `double-counting' |
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316 | (5) |
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4.2 Opinio juris in investor-State arbitration |
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321 | (30) |
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4.2.1 The practice of arbitral tribunals and the position of States |
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322 | (3) |
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4.2.2 The role played by opinio juris in the transformation of treaty-based norms into custom |
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325 | (1) |
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4.2.2.1 Which States' opinio juris matters and what needs to be demonstrated |
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326 | (4) |
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4.2.2.2 Examples of where to find States' opinio juris |
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330 | (4) |
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4.2.3 Do States have any opinio juris when they sign BITs? |
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334 | (1) |
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4.2.3.1 States sign BITs to protect their own interests, not out of any sense of obligation |
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335 | (2) |
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4.2.3.2 Other reasons given by scholars to explain States' lack of opinio juris |
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337 | (3) |
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4.2.3.3 Alternative theories put forward by scholars in support of the claim that States have an opinio juris when signing BITs |
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340 | (1) |
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4.2.3.3.1 States' opinio juris is embodied in their practice |
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341 | (5) |
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4.2.3.3.2 States' opinio juris exists because it represents their general interests |
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346 | (5) |
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5 The fundamental importance of customary rules in international investment law |
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351 | (55) |
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351 | (1) |
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5.1 Traditional reasons for the remaining importance of custom |
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352 | (16) |
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5.1.1 Custom is the applicable legal regime in the absence of any BIT |
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352 | (2) |
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5.1.2 Many BITs make explicit reference to custom |
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354 | (10) |
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5.1.3 Custom plays a gap-filling role |
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364 | (4) |
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5.2 Arbitral tribunals always have to take into account custom to resolve disputes |
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368 | (15) |
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5.2.1 Arbitration under a State contract |
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369 | (5) |
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5.2.2 Arbitration under the host State's law |
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374 | (2) |
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5.2.3 Arbitration under an investment treaty |
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376 | (7) |
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5.3 The limits of custom: no access to international arbitration without the host State's consent |
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383 | (9) |
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5.4 Can a State claim the status of persistent objector? |
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392 | (14) |
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5.4.1 The concept of persistent objector in international law |
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393 | (3) |
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5.4.2 The application of the concept of persistent objector in the context of international investment law |
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396 | (1) |
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5.4.2.1 Arbitration cases where the argument was raised |
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397 | (4) |
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5.4.2.2 Reasons for rejecting the application of the concept in arbitration proceedings |
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401 | (5) |
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406 | (19) |
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C.1 The remaining fundamental importance of custom in the present age of `treatification' |
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406 | (3) |
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C.2 The importance of the question of the formation and identification of customary rules |
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409 | (2) |
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C.3 Comparing custom formation and identification in investment arbitration and general international law |
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411 | (14) |
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C.3.1 The basic principles regarding the formation of customary rules in investment arbitration are not different from those applicable in general international law |
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412 | (2) |
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C.3.2 Some aspects regarding the identification of customary rules in investment arbitration are different from international law while others are similar |
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414 | (1) |
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C.3.2.1 The role played by treaties in the formation of customary rules is the same in both fields |
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415 | (2) |
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C.3.2.2 States' opinio juris manifests itself in the same way in both fields |
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417 | (3) |
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C.3.2.3 The conduct of States within international organizations and the internal national practice of States only play a limited role in the creation of custom in investment arbitration |
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420 | (2) |
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C.3.2.4 The types of statements by States that matter as evidence of State practice are different in investment arbitration |
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422 | (3) |
| Bibliography |
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425 | (49) |
| Index |
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474 | |