【摘要】 维系粮食安全离不开能够有效保障隐性劳动生产率进而维持土地产出率的"家庭经营"及其基础上的适度规模经营。规模扩张初始阶段,主体行为结果难以拟合政府目标,只有当规模扩张至一定阶段,受规模边际正效应递减、负效应递增、内外因素合力制衡后,粮食适度规模经营回归。此时的适度尽管接近政府目标要求,但与政府期许的基于家庭经营发展起来的"适度"尚有差距。为此,政府应将保障粮食供给安全公益目标寄托于家庭农场等适度规模经营主体而非强力资本主体,并给予其适当的政策扶持和项目倾斜,持久有效地保障粮食安全。更多还原

【Abstract】 Maintaining grain safety could not be realized without "household management" and on the basis of moderate scale management that can effectively guarantee implicit labor productivity to safeguard the land outputs.In the initial stage of scale expansion, behavior results of grain operators would be difficult to fit the government ’s target, moderate scale management of grain could be in return and eventually achieved only when scale expansion to a certain stage, under the force balance in diminishing scale marginal positive effect, increasing marginal negative effects, internal and external factors. Although the moderate scale at this time could be closed to the aim and demand of government public welfare, there could be a certain gap with moderate scales based on the household management that government desired. Therefore, the government should rely on the moderate scale management operator such as family farms instead of the large capital subject to guarantee the public welfare goal of ensuring supply safety of grain, and give the proper policy support and project tilt to make sure the supply safety of grain persistently and effectively.更多还原