Spatial Boundaries and Choice Set Definition in a Random Utility Model of Recreation Demand
研究了休闲需求随机效用模型中空间边界对选择集定义的影响，以缅因州一日钓鱼游为例，发现超过一定距离后增加站点对估计结果影响很小。
We are concerned with the definition of choice set used in Random Utility Models of recreation demand. In particular, we are concerned with the spatial boundaries used to define choice sets. In this paper, using a model of day-trip fishing in Maine, we examine the sensitivity of parameter and welfare estimates to changes in the spatial boundary. We find that there exists some threshold distance beyond which adding more sites to the choice set has negligible effects on the estimation results.