A Theoretical Foundation for Count Data Models
为旅行成本分析中的计数数据模型提供了理论基础，构建了受限选择模型和重复离散选择模型，并证明两者产生相同的福利度量。
Abstract The paper develops a theoretical foundation for using count data models in travel cost analysis. Two micro models are developed: a restricted choice model and a repeated discrete choice model. We show that both models lead to identical welfare measures.