基于双栏模型的三江平原湿地生态保护价值评估

敖长林, 董育宁, 焦扬, 张昆, 董利娜

Ecological value evaluation of the Sanjiang Plain Wetland based on the Double-Hurdle Model

AO Changlin,DONG Yuning,JIAO Yang,ZHANG Kun,DONG Lina

表6 支付方程参数估计结果

Table 6 Parameter estimation of payment hurdle

变量 系数 标准差 Z统计量 P值 SEX -32.860 23.611 -1.392 0.164 AGE -22.616 9.246 -2.446 0.014* EDU 26.805 7.855 3.413 0.001** INC 17.340 5.442 3.186 0.001** ACK 26.422 10.393 2.542 0.011* TIM 45.265 11.963 3.784 0.000**