In the primary nonresidential expenditure model, income, ethnicity, private or public lands, and forest lands had a significant effect on nonconsumptive wildlife recreation expenditures.
实证结果显示,在远距消

模型中,个人收入、种族肤色、公私有林地等影响因子,对于非消耗性

物游憩活
之消

情形具有相对的显著性。

,
们不会花时间去比较各种选择。
动力
者非常接近;因为将使用相
乎相


