Separability in State‐Level Agricultural Technology
使用州级数据，通过确定性和随机性检验分析农业生产技术的可分离性，发现投入和产出可适度聚合，但各州差异显著。
Abstract A nonparametric analysis of separability in agricultural production technology was conducted using state‐level data. Both deterministic (exhaustive search) and stochastic (measurement error) tests were performed. The empirical findings do not rule out a reasonable amount of data aggregation, both among inputs and among outputs. The nature and extent of the justified aggregation varies widely among states, supporting the notion that the structure of agricultural production varies in important ways across states.