Why do economists use the ceteris paribus assumption? Many changes are affecting the market for oil. Predict how each of the following events will affect the equilibrium price and quantity in the market for oil. In each case, state how the event will affect the supply and demand diagram. Create a sketch of the diagram if necessary.
a. Cars are becoming more fuel efficient, and therefore get more miles to the gallon.
b. Landlords install additional insulation in buildings.
c. The price of solar energy falls dramatically