本研究的实证分析以黄冈、荆州和荆门作为湖北油菜种植主要市(州、区)的3个代表组,以利润最大化为目的,依据1990—2014年各组油菜种植规模、油菜农户销售价格及当地农民年人均纯收入3个变量的时间序列数据,运用Nerlove模型实证分析了湖北油菜种植规模对滞后一期这3个变量的供给反应程度。结果表明:湖北油菜种植规模虽然在3个组的反应程度存在一定差异,尤其是第2组荆州市在模型中还显示出油菜种植的可能“低档品”倾向,但是总体表现出目前湖北油菜种植的主要刚性自需特征和随当地农民年人均纯收入变动较大特点。
For maximal profit, taking Huanggang,Jingzliou and Jingmen as the 3 representative cities (or districts) of tlie main rapeseed planting areas in Hubei and using their time-arranged (1990-2014) data of rapeseed planting areas,farmer 's selling price of rapeseed and the average income every year, this research give an empirical analysis on the supply response of rapeseed planting area to such 3 factors of last year with Ner- love Model. The research makes it clear that although the supply response of planting area in Hubei differs among the 3 cities ( or states or districts) especially for the Jingzhou City ( or the 2nd representative city) of its possible" inferior goods" in economics of rapeseed planting,2 main characteristics lie in rigidity of demand and larger chan-ges witli average farmer’s income of tliat city ( or state or district) nowadays.