The price level may rise as a result of a shift in the aggregate demand or the aggregate supply curve. Will the following factors shift the aggregate demand curve? (Choose ALL that apply) A cut in the rate of income tax. The expansion of public works. A successful attempt by the trade unions to increase real wages An increase in the price of energy An increase in VAT. Arelaxing of competition legislation that makes companies decide to Increase their profits by using their market power to Increase prices