Sampling Issues in Trade Area Maps Drawn from Shopper Surveys
讨论了三个可能导致商圈地图失真的抽样问题，通过大型购物中心的案例展示其影响，并提出了应对方法。
There are at least three sampling issues that can result in misleading trade area maps if not recognized. This paper discusses these issues, shows their effects on the trade area map of a large shopping center, and suggests procedures for responding to them.