If the trade surplus has fallen, which of the following is a possible explanation?

Which of the following is the exponential trend equation to forecast sales (S)?

A) S = a + b(t) B) S = a + bt C) S = a + b(t) + c(t)2 D) None of the above

Beginning from a position of long-run equilibrium at the full-employment level of real GDP, the economy's short-run response to a decrease in the aggregate demand curve would be a: a. movement upward along the short-run aggregate supply curve

b. movement upward along the long-run aggregate supply curve. c. downward shift in the short-run aggregate supply curve. d. movement downward along the short-run aggregate supply curve.