Economics of African Animal Trypanosomosis (AAT) management strategies under risk and time preferences

牛的非洲动物锥虫病(AAT)和对杀锥虫药物广泛抗药性的威胁一直是疾病控制和预防的主要投入，是西非棉区小农畜牧业生产系统中资源贫乏的养牛户面临的重大生产风险。该区域最近的研究突出表明，迫切需要加强对耐药性发展的了解，并找到可持续遏制和预防耐药性的方法。这项研究的总体目标是分析可以导致畜牧业生产的可持续性的选择，尽管存在AAT和耐药性。在这方面，农民关于时间偏好和对风险的态度这两个因素的决策行为起着重要作用。这是影响农民疾病防治投入选择的两大变量。在马里和布基纳法索有代表性的农民样本中通过经济实地试验同时得出这些参数的基础上，将这些信息应用于适用于比较疾病控制战略的生物经济模型。

African animal trypanosomosis (AAT) in cattle and the threat of widespread resistance to trypanocidal drugs, that has been the major input of disease control and prevention, are important production risks to resource-poor cattle farmers in smallholder crop livestock production systems in the cotton belt of West Africa. Recent studies in that region underline the urgency to improve the understanding of drug resistance development and to find ways of its sustainable containment and prevention. The overall goal of this research is to analyze options that can lead to the sustainability of livestock production in spite of AAT and drug resistance. In this context the decision making behaviour of farmers with regard to two factors, namely time preference and attitude towards risk plays an important role. These are two major variables affecting farmers’ input choice of disease control and prevention. Based on the simultaneous elicitation of these parameters by means of economic field experiments among a representative sample of farmers in Mali and Burkina Faso these information are applied to a bio-economic model suitable to compare disease control strategies.