Given a fixed Phillips Curve with stable and predictable inflation and unemployment rate tradeoffs, it appears that: Given a fixed Phillips Curve with stable and predictable inflation and unemployment rate tradeoffs, it appears that: manipulating aggregate demand through fiscal and monetary policies has the effect of shifting the curve. manipulating aggregate demand through fiscal and monetary policies has the effect of causing a movement along the curve. a tight money policy can shift the curve to the right. an expansionary fiscal policy can shift the curve to the right