The following questions are based on open economy macroeconomic model. The answers must be written in your words along with graphical illustration. Without explaining in your words, the graphical illustration alone will not be credible. Also make sure you use the relevant symbols and notation on each of the lines and axis on the graph(s) to clearly indicate the working mechanism of variables.

a. Using the ZZ/Y and NX graphs, illustrate graphically and explain what effect a reduction in taxes will have on output, exports, imports, and net exports. Clearly label all curves and clearly label the initial and final equilibria.

b. Using the ZZ/Y and NX graphs, illustrate graphically and explain what effect a reduction in foreign output (Y*) will have on output, exports, imports, and net exports. Clearly label all curves and clearly label the initial and final equilibria.

c. Suppose the national output in the US is below the policy makers' desired level of output and is experiencing a trade deficit. Assume that the policy makers' goals are to achieve the desired level of output (i.e., full employment output) and balanced trade. Given this information, what type of exchange rate and/or fiscal policy can be used to achieve simultaneously these two goals?

d. Using the ZZ/Y and NX graphs, illustrate graphcally and explain what effect an increase in government spending will have on output, exports, imports, and net exports. Clearly label all curves and clearly label the initial and final equilibria.