econ代写 刷题理论推导Econ course 经济题加急
                econ代写  (30 points) Country H, which is small, exports good X.  Its excess supply curve is given by P=100+4X.  The world price ratio Px/Py is P=200.  It is suggested, but not required, that you use a graph to help answer the questions below.             
            
        