The decomposition of cost inefficiency into technical and allocative components with panel data of Italian dairy farms
综述了将成本无效率分解为技术无效率和配置无效率的方法，并采用影子成本模型对意大利北部奶牛场面板数据进行分析，发现样本中平均成本超额为69%，主要源于技术无效率，而配置无效率与饲料作物和购买饲料相对于雇佣劳动的利用不足有关。
This paper considers the decomposition of cost inefficiency into its technical and allocative components. First, the relevant literature is surveyed, showing that the shadow price approach has significant computational advantages over alternative procedures. To illustrate this approach, a shadow cost model is applied to a panel of dairy farms in Northern Italy, and cost inefficiency is decomposed into its technical and allocative components. The main results from this application are that the cost excess owing to inefficiency in the sample is on average 69 per cent, mainly as a result of technical inefficiency, and that allocative inefficiency relates to the under-utilisation of forage crops and of purchased feed with respect to hired labour.