They look cool. Whether you move to a larger-diameter wheel as an option on a new vehicle or as an aftermarket upgrade on the car you already own, there are plusses to plus-sizing, but some minuses as well. When you move to a larger wheel diameter (such as from 17 to 18 inches), you need tires to match. Those tires need a lower profile (or sidewall height) to maintain adequate clearance when they go over bumps and potholes, which makes the suspension fully compress and rebound.
Consumer Income. Changes in consumers' income cause a change in the demand for a good or service. When consumers' income increases, demand for goods also increases, causing the demand curve to shift to the right. This is because consumers spend more money when they have higher incomes.
1 A change in demand occurs when the entire demand schedule or demand curve shifts. 2  A change in quantity demanded occurs when the price of a good changes and one moves along the demand curve. 3  The market demand curve is found by horizontally summing the individual demand curves of all consumers in a market.