Identifying different technologies using a latent class model: extensive versus intensive dairy farms
利用随机前沿潜在类别模型，根据集约化程度估计西班牙奶牛场的技术类型，发现集约型技术生产率更高且技术效率更优。
In this article, we use a stochastic frontier latent class model to estimate the technology of dairy farms according to their degree of intensification. The results are compared with a model which assumes that the technology is common to all farms. The empirical analysis uses data on a balanced panel of 130 Spanish dairy farms over the period 1999–2006. We find that the intensive technology is more productive than the extensive one and that intensive farms are more technically efficient than extensive farms.