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.
Price elasticity of demand and total revenue are closely interrelated because they deal with the same two variables, P and Q. If your product has elastic demand, you can increase your revenue by decreasing the price of that good. P will decrease, but Q will increase at a greater rate, thus increasing total revenue.