1, That is, the income elasticity of demand is positive.

2, The milk consumption of income elasticity of demand is the highest among the husbandry foods.

3, The tap waters income elasticity of demand and price elasticity of demand is analyzed, along with the fluctuating range month by month of inhabitants water consumption.

4, The major determinant of income elasticity of demand is the degree of'necessity'of the goods.

5, Define the price elasticity of demand and the income elasticity of demand.

6, In either case, public spending should increase by the income elasticity of demand.

7, The effect is similar to a change in income and depends upon the income elasticity of demand.

8, The demand is affected by price and income, classified as price elasticity of demand, income elasticity of demand and cross elasticity of demand.

9, From an analysis, it can be seen that the income elasticity of demand for medical service is weakening with the elasticity for those of higher income greater than those of lower income.