Causes of Hair Loss. First your doctor or dermatologist (a doctor who specializes in skin problems) will try to determine the underlying cause of your hair loss. The most common cause of hair loss is hereditary male-or female-pattern baldness. If you have a family history of baldness, you may be susceptible to this type of hair loss.
Demand Elasticity - the degree to which changes in price effect changes in demand. Demand is elastic when a small change in price effects a large change in demand. Such products, that show great variability in demand are known to have elastic demand.
Inelastic Demand Curves. If the demand for an item changes proportionately less than the price changes, then the item is price inelastic. For example, a demand curve is inelastic if the price of an item increases by 1 percent and purchases decrease by half a percent. Demand curves for items that people need to survive, such as staple foods, are inelastic, because people will buy the items regardless of price.