当前要想了解我国的居民可支配收入与消费性支出，就必须利用半线性回归模型的优良拟合性质进行分析。
In this paper, based on the large sample property of semilinear model, we analyze the relation ship between living expenditure and disposable income in China.
为此，特以实证数据为出发点：1981 ~ 2000年间城镇居民可支配收入与消费支出，用变参数模型去分析了收入与支出的关系及消费行为。
This paper analyses the relationship between income and consumption behavior by using variable parameter model based on the data from 1981-2000 of disposable income and consumption.
根据模型结果，农业财政支出每增加一亿元，第三年农民人均纯收入增加1.88元。
Based on the model, each additional 100 million yuan of agricultural finance expenditure, the net income of farmers on average increased by 1.88 yuan in third year.
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