The Application and Economic Interpretation of Selectivity Models
以冷冻浓缩橙汁为例，说明选择性模型结果的不同经济解释，发现基于实际观测与潜在变量的边际效应和弹性差异显著，对研究品牌与自有品牌消费模式的学者有参考价值。
Abstract Substantial differences in economic interpretations may be inferred from the estimated selectivity model results. Using the demand for frozen concentrated orange juice (FCOJ) as an example, the study suggests that the consumption patterns are quite similar between national brand and private label when the marginal effects and elasticities are evaluated based on actual observations rather than unobserved latent variables. Results show that private label FCOJ is considered as a normal (inferior) good if the income effect is assessed based on actual (potential) purchases. The estimated cents‐off elasticities for private label FCOJ also vary substantially depending on which approach is used.