You should answer the question in report form with introduction, main body and conclusion. Global oil prices have fallen sharply over the past year, leading to significant revenue shortfalls in many energy exporting nations, while consumers in many importing countries are likely to have to pay less to heat their homes or drive their cars. HAVARD REFERENCE. Question: How oil prices affect the AD or AS of an economy?  Please select one of the below: 1) The petrol exporting nations Or & ...