Even if expectations of inflation are rational, sluggish adjustment of wages and prices will still create a short-run trade-off between inflation and unemployment

Union membership over the last five decades has

a. grown at the same rate as the labor force b. become much more attractive and has grown more rapidly than the labor force c. become much more attractive d. grown more rapidly than the labor force e. declined

According to Keynesians, an increase in the money supply will have its least impact on GDP when the aggregate demand curve intersects:

a. the horizontal portion of the aggregate supply curve. b. the vertical portion of the aggregate supply curve. c. the upward sloping portion of the aggregate supply curve. d. either the horizontal or upward sloping portion of the aggregate supply curve. e. either the horizontal or upward sloping portion of the aggregate supply curve.