放松退耕地间种约束的政策合理性与有效性检验——基于贵州省新一轮退耕还林的农户调查
黄杰龙, 王立群

Policy feasibility and effectiveness test of relaxing constraints of interplanting in returning farmland: Based on a survey of farmers in Guizhou Province
HUANG Jielong, WANG Liqun
表3 Box-Cox转换下的模型参数估计结果(θ=0.15)
Table 3 Estimation results of model parameters under Box-Cox transformation (θ=0.15)
变量 估计值 t检验 变量 估计值 t检验
Y1 0.00026 4.1324*** Y1Y1 0.00148 -2.2165**
Y2 -0.00045 -2.5274** Y1Y2 -0.00092 0.9065
Y3 -0.00632 -1.0293 Y1Y3 -0.00206 6.1477***
P1 0.00019 3.3761*** Y2Y2 0.01137 -1.0003
P2 0.00161 0.5510 Y2Y3 0.00633 3.628***
Y1P1 0.01028 2.3213** Y3Y3 -0.00119 -6.8533***
Y1P2 0.02274 5.1964*** P1P1 -0.04612 -0.4417
Y2P1 -0.00995 -0.3747 P1P2 0.02506 4.1813***
Y2P2 -0.01748 -4.8742*** P2P2 -0.01621 -0.7761
Y3P1 -0.00842 -0.7329 Prob>F 0.000
Y3P2 0.02655 0.8223 R-squard 0.619