The Dong (D), Vietnam's currency, is fixed to the U.S. dollar (US$). Suppose the recent financial crisis in the U.S. has temporarily changed the consumption behaviour of the American households such that they now buy more domestically made products and less foreign goods (including Vietnam's goods); but the aggregate level of expenditure (the total amount spent on domestic and foreign goods) by households remains unchanged.

A study shows that Vietnam and the U.S. have different economic structures. Explain what happens to the short-run equilibrium level of output in both the U.S. and Vietnam, and support your answer by TWO appropriate DD-AA diagrams.

In this question, let the euro () be the third currency. In your diagram and written explanation, use the subscripts "V" and "US" to denote all the variables and terms used for Vietnam and the U.S. respectively. You must follow these notations; otherwise, you will receive a grade of ZERO for the whole question.