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.
Calculating Price Elastic of Demand. Products whose sales volumes change more with price shifts are considered to have elastic demand. Goods and services whose sales volumes change little with price alterations are considered to have inelastic demand. To calculate how elastic or inelastic a product is, the percent change in price is divided from the percentage change in quantity demanded. So if sales decrease 40 percent because the price of a good increases 20 percent, the formula is -40 percent divided by 20 percent. The price elasticity of demand is measured at -2.