IMF国际经济学习题求解

多选题，请解答后附带解释，谢谢

Which of the following scenarios related to external debt, maturity and stability are correct? Select all that apply:

- AIf the rollover rate is greater than 100 percent, the stock of debt would decrease。

B.Suppose that repayments of debt increase. Gross disbursements would have to increase to maintain the same roll-over rate


C.Suppose that the composition and level of debt do not change. A decrease of the implied average maturity could cause a decrease in reserves-to-short term debt at remaining maturity.


D.Everything else equal, an increase in the implicit interest rate on external debt leads to an improvement in the current account balance

Which of the following could suggest a weakening of the external sector conditions of an economy? Select all that apply:

A.A decline in reserves in months of imports of goods and servicesB.An increase in reserves in percent of short term debt at remaining maturity, C.A decline in the Net International Investment Position in percent of GDP,


D.An increase in external debt to GDP
E。An increase in the roll-over ratio
F.A sudden increase in the current account deficit accompanied by loss of reserves