A Simple Repackaging Model of Recreational Choices
传统旅行成本模型以旅行次数为数量、每次旅行的成本为价格，但估计的需求曲线未保持访问时长不变，无法评估使用增量。本文用Muellbauer等人的简单重新包装模型，从可变访问时长的需求曲线推导出恒定访问时长的需求曲线，从而得到管理决策所需的边际数量估值。
Abstract The traditional travel cost model uses trips (or visits) as its measure of quantity and travel cost per trip (or visit) as its price. However, because many estimated demand curves do not hold visit length constant, they cannot be used to value increments of use. The simple repackaging model of Muellbauer, and Fisher and Shell is used to derive demand curves exhibiting constant visit length from demand curves exhibiting variable visit length. The former allow the marginal quantity valuations that are necessary for management decisions involving capacity or use.