This video [6:14] discusses thinking about how high utilization could drive price as another justification for an upward sloping short-run aggregate supply curve.

If a factor of aggregate demand changes in response to anything other than a change in the price level shifts aggregate demand. In this video [5:18], we explore the shifters of AD and factors that might shift aggregate demand to the left...

Exchange rates are determined in the foreign exchange market, but what causes those exchange rates to change? In this video, learn about why the supply or demand for a currency might change.