主题：两房债券如果成为废纸，美国和中国的损失分别是多少 -- 思想的行者

First, Treasury and FHFA have established Preferred Stock Purchase Agreements, contractual agreements between the Treasury and the conserved entities. Under these agreements, Treasury will ensure that each company maintains a positive net worth.These agreements support market stability by providing additional security and clarity to GSE debt holders - senior and subordinated - and support mortgage availability by providing additional confidence to investors in GSE mortgage backed securities. This commitment will eliminate any mandatory triggering of receivership and will ensure that the conserved entities have the ability to fulfill their financial obligations.