Her father is Robert Ellis Silberstein (Jewish). Her mother is Diana Ross (African-American).
If the cross price elasticity is positive, then we call such goods Substitutes (example: pizza and burgers -- you usually consume either or). The income elasticity of demand measures the change in the quantity demanded of some good, when the income changes, holding everything else constant.For example you can measure what happens to the demand for expensive red wine when income increases.f the cross price elasticity is positive, then we call such goods Substitutes (example: pizza and burgers -- you usually consume either or). The income elasticity of demand measures the change in the quantity demanded of some good, when the income changes, holding everything else constant.
Market and aggregate demand are as different as demand for what you produce and national demand for the country's GDP. Photodisc/Photodisc/Getty Images. The difference between market demand and aggregate demand delineates the fundamental difference between microeconomics and macroeconomics. Microeconomics is concerned with the supply and demand of specific goods and services. Macroeconomics is concerned with a nation's total supply and demand of all goods and services. Market demand is the demand side of the equation in microeconomics, whereas aggregate demand is the same in macroeconomics.