If Yt is I(2), then
A) ?2Yt is stationary.
B) Yt has a unit autoregressive root.
C) ?Yt is stationary.
D) Yt is stationary.
Answer: A
Economics
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Under a flexible exchange rate system, there is no need for foreign exchange reserves.
Answer the following statement true (T) or false (F)
Economics
Refer to the following graph to answer the question:
Suppose price rises from $90 to $110. Using representative arrows, the quantity effect is a relatively ________ (short, long) arrow pointing ________ (upward, downward).
A. short; upward B. short; downward C. long; downward D. long; upward
Economics