我国主产区大豆生产能力影响因素分析

Determinants of Chinese Soybean Production

本文采用固定效果模型对大豆主产区1991-2002年大豆总产量的主要影响要素进行估计．结果表明生产函数中基本投入要素：大豆播种面积、劳动用工总量、化肥投入、种子秧苗投入、其他物质费用是影响大豆产量的主要要素；其中大豆播种面积的弹性系数最大。对1991-2002年大豆的各主要生产要素对大豆产出增长贡献率的测算表明：大豆播种面积、化肥和种子秧苗的投入对大豆产出增长的贡献最大。

Astract A fixed effect model was used to estimate the determinants of soybean production from 1991 to 2002 in China＇s major soybean producing areas. The results show that planting area. labor, fertilizer, seed and other material inputs were major factors, with planting area the most important. The results of contri bution of each input to growth rate also reveal that planting area, fertilizer and seed are major factors influencing soybean output growth.