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首页> 外文期刊>American Journal of Experimental Agriculture >Cost Efficiency of NERICA Producing Households in Ghana: A Modified Non-neutral Stochastic Frontier Analysis
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Cost Efficiency of NERICA Producing Households in Ghana: A Modified Non-neutral Stochastic Frontier Analysis

机译：加纳的NERICA生产家庭的成本效率：修正的非中性随机边界分析

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Aim: To investigate cost efficiency and its determinants on New Rice for Africa (NERICA) farms in Ghana whilst accounting for the non-usage of fertilizer and herbicides by some farmers. Study Design: Cross sectional. Place and Duration of Study: Kpando, Hohoe and Kadjebi Districts in the Volta Region of Ghana in the 2010/2011 cropping season. Methodology: Single-stage maximum likelihood estimation of a modified Cobb-Douglas stochastic cost frontier and inefficiency model. The inefficiency model is extended to also account for the interactive effect of some farm specific factors on efficiency and uses a cross-sectional data on 159 farm households. Results: The results reveal that the cost function monotonically increases in all the input prices and output. The scale economies analysis indicates that economies of scale prevail in the production of NERICA rice in the study area. The combined effects of farm specific factors and some interactions were found to have significant influence on cost efficiency. Estimated mean cost efficiency is 107% indicating that on average NERICA farmers incur costs about 7% above the minimum obtainable cost. Level of education is found to improve cost efficiency. Conclusion: On the average NERICA farmers are fairly cost efficient and expanding their current scale of production will result in a decrease in per unit cost of output. Education programs designed for uneducated farmers should be introduced. The youth who are more educated should be encouraged to venture into NERICA farming. Farmers in remote districts should be provided with agricultural information and also given ready access to inputs such as fertilizer and seed.
机译：目的：调查加纳的非洲新稻（NERICA）农场的成本效率及其决定因素，同时考虑到一些农民未使用化肥和除草剂。研究设计：横截面。研究的地点和持续时间：2010/2011种植季节加纳沃尔塔地区的Kpando，Hohoe和Kadjebi地区。方法：修正的Cobb-Douglas随机成本前沿和低效率模型的单阶段最大似然估计。低效率模型被扩展为还考虑了一些农场特定因素对效率的互动影响，并使用了159个农户的横截面数据。结果：结果表明，成本函数在所有投入价格和产出中都单调增加。规模经济分析表明，规模经济在研究区域的NERICA水稻生产中占主导地位。发现农场特定因素和某些相互作用的综合影响对成本效率有重大影响。估计的平均成本效率为107％，这表明NERICA农民平均产生的成本比最低可获得成本高出7％。发现教育水平可以提高成本效率。结论：平均而言，NERICA农民具有较高的成本效益，而扩大其当前的生产规模将导致单位产出成本的下降。应该引入针对未受过教育的农民的教育计划。应鼓励受过高等教育的青年冒险去NERICA农业。应当向偏远地区的农民提供农业信息，并使其易于获得肥料和种子等投入物。

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