INFJs tend to see helping others as their purpose in life, but while people with this personality type can be found engaging rescue efforts and doing charity work, their real passion is to get to the heart of the issue so that people need not be rescued at all.
Cross elasticity of demand Cross elasticity of demand (XED) is the responsiveness of demand for one product to a change in the price of another product. Many products are related, and XED indicates just how they are related.
Cross elasticity of demand is defined as the percentagechange in the quantity demanded of one good divided bythe percentage change in the price of another good. Twosubstitute products normally have a positive cross elasticityof demand. Two complementary products normally have anegative cross elasticity of demand.6.