种植业机械购买力临界条件研究

RESEARCH ON CRITICAL VALUE OF PURCHASING POWER FOR FARM MACHINERY

为了分析现阶段我国农机产品需求规律，引入了收入差异系数φ、耕地规模扩大系数γ、经营规模效益系数ε和购买力系数β四个指标，建立了农村劳动力、劳均耕地和收入水平三个因素与劳动力转移率之间的关系式，推导出各指标临界条件，提出了确定农机产品购买可能域的方法。

In order to analyse the law of demand for farm machinery in China,four criterions of the income difference,land scale enlarged,the efficiency of land scale and purchasing power were introduced to establish the relations between rural labor,farm land,income level of farmers and labor transference.Their critical formulas were infered.Based on the formulas the possible zone of purchasing farm machinery were illustrated.