代位求偿权本为国内法上的概念,其含义为:与债之履行有利害关系的第三人为债务人清偿债务后,得代位行使债权人的权利,向债务人求偿。这一概念引入国际投资领域之后,又有了特定的内容,是指有关国家通过投资保护协议约定,如果资本输出国根 The right of subrogation is the notion of domestic law, which means that the third party who has an interest in the performance of the debt, after paying off the debts for the debtor, may exercise the rights of the debtor on behalf of the debtor and seek compensation from the debtor. After this concept was introduced into the field of international investment, it has a specific content. It refers to the agreement reached by the countries concerned through the investment protection agreement that if the country of capital export