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.
Other Price Elasticities: Cross- Price Elasticity of Demand<br />Elasticity of demand with respect to the price of a complementary good (cross-price elasticity)<br />This elasticity is negative because as the price of a complementary good rises, the quantity demanded of the good itself falls.<br />Example (from last week) software is complementary with computers.