Heterogeneous preferences and the effects of incentives in promoting conservation agriculture in Malawi
Heterogeneous preferences and the effects of incentives in promoting conservation agriculture in Malawi
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DOI：
10.1016/j.agee.2016.02.005
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发表时间：
2016-04-15
影响因子：
6.6
通讯作者：
Mapemba, Lawrence
中科院分区：
文献类型：
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作者：
Ward, Patrick S.;Bell, Andrew R.;Mapemba, Lawrence
通过世界各地发展中国家粮食生产的可持续集约化来增加粮食安全是一个非常重要的问题。其中一种方法是通过保护性农业（CA），它通过一套农业实践来改善土壤质量，这些实践可以减少土壤干扰，通过保留作物残留物增加土壤覆盖，并增加作物多样化。我们使用离散选择实验来研究农民对这些不同的CA实践的偏好，并评估采用CA的意愿。尽管有许多长期的农业效益，但一些农民不愿意在没有激励的情况下采用CA。我们的研究结果表明，农民认为CA实践之间的相互作用是不同的，有时是互补的，有时是贬低其他实践的好处。但我们的结果也表明，偏好是CA经验的函数，例如当前农场水平的实践影响了采用完整CA软件包的意愿。此外，暴露于洪水和虫害等各种风险往往限制了采用。提供补贴可以增加对完整CA包的可能采用，但可能产生一些不合理的激励，从而导致随后的不采用。(C) 2016 Elsevier B.V.版权所有
There is a great deal of interest in increasing food security through the sustainable intensification of food production in developing countries around the world. One such approach is through Conservation Agriculture (CA), which improves soil quality through a suite of farming practices that reduce soil disturbance, increase soil cover through retained crop residues, and increase crop diversification. We use discrete choice experiments to study farmers' preferences for these different CA practices, and assess willingness to adopt CA. Despite many long-term agronomic benefits, some farmers are not willing to adopt CA without incentives. Our results suggest that farmers perceive that CA practices interact with one another differently, sometimes complementing and sometimes degrading the benefits of the other practices. But our results also indicate that preferences are a function of experiences with CA, such that current farm level practices influence willingness to adopt the full CA package. Further, exposure to various risks such as flooding and insect infestations often constrains adoption. Providing subsidies can increase likely adoption of a full CA package, but may generate some perverse incentives that can result in subsequent disadoption. (C) 2016 Elsevier B.V. All rights reserved.