1. However, MPC and income elasticity of demand tend to increase as wealth increases. 2. Patterns and changes in sectoral employment drive demand shifts through the income elasticity . 3. In other words, the income elasticity of demand of food is between 0 and 1. 4. The income elasticity of the value of statistical life has been estimated at 0.5 to 0.6. 5. In an economy, health care is a luxury good with an income elasticity -estimated from cross-country data of about 1.1. 6. It was shown that the manner in which the intergenerational income elasticity is defined, is by design associated with inequality. 7. A good's Engel curve reflects its income elasticity and indicates whether the good is an inferior, normal, or luxury good. 8. Income elasticity of demand is not constant with respect to income, and may change sign at different levels of income.9. Empirical measures of the income elasticity of demand in North America range from 0.5 to 0.9 ( De Leeuw 1971 ). 10. In an economy, health care is a luxury good with an income elasticity -estimated from cross-country data of about 1 . 1.