8) Suppose workers expectations of the price level and productivity are accurate. For this economy, an increase in productivity will cause which of the following? A) a decrease in the real wage and an increase in the natural rate of unemployment B) an increase in the real wage and a decrease in the natural rate of unemployment C) an increase in both the real wage and the natural rate of unemployment D) a decrease in both the real wage and the natural rate of unemployment E) none of the above