In the different years, the family 's expenditure on education and the family' s income have a positive coefficient and their elastic coefficient is more than 1.
不同年度家庭教育支出与家庭收入呈正向变动关系,二者的弹性系数大于1。
2
These constitute the family' s financial ledger, the family can check the financial details of management over time of total individual incomeandexpenditure and income and expenditure.