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.
If the purchase can be delayed, the demand for the product tends to be elastic. If it cannot be delayed it tends to be inelastic. For example, since I can wait to buy a new stereo until the price drops demand will vary greatly in accordance with price. This product thus would tend to be elastic. Gasoline, on the other hand, I cannot wait for. Thus demand does not vary greatly with price and the product tends to be inelastic.