[Note: The distance between cities in California (US) distance chart below is straight line distance (may be called as flying or air distance) between the two locations in California (US) calculated based on their latitudes and longitudes. This distance may be very much different from the actual travel distance.]
In drawing the demand schedule or the demand curve for a good we take income of the people as given and constant. When as a result of the rise in the income of the people, the demand increases, the whole of the demand curve shifts upward and vice versa. The greater income means the greater purchasing power.
If it is less than 1, it is inelastic. EFFECTS:Whether the demand or supply of a particular good is elastic or inelastic depends in part on how essential it is to most consumers. Goods that are necessities for consumers everyday lives are more inelastic. Consumers continue to purchase such goods, despite price increases. CONSIDERATIONS:Demand is more elastic if there are substitutes for a particular product or if it is considered a luxury by most consumers.