环渤海地区滴灌的资源与经济效应——政府与农户目标一致性检验
张哲晰,穆月英,侯玲玲,杨鑫

Resource and economic effects of drip irrigation in the Bohai Rim area: Consistency of goals of the government and farmers
Zhexi ZHANG,Yueying MU,Lingling HOU,Xin YANG
表3 基于CMP/OLS方法的联立方程组参数估计结果
Table 3 Parameter estimation results of simultaneous equations based on conditional mixed process (CMP) / ordinary least squares (OLS) method
方程名称 变量名称 CMP方法 OLS方法
回归系数 标准误 回归系数 标准误
农户滴灌技术
采用方程
(1)
Rare 0.095* 0.049 0.097** 0.049
Gen 0.157 0.256 0.146 0.257
Age 0.002 0.009 0.002 0.009
Vyear -0.015* 0.009 -0.015* 0.009
Edu -0.006 0.032 -0.007 0.032
Ati 0.071 0.091 0.055 0.096
Know 0.209*** 0.068 0.198*** 0.071
Chan 0.011 0.162 0.024 0.170
Lab -0.011 0.107 0.001 0.112
Tinc 3.68E-06** 1.65E-06 4.21E-06** 1.68E-06
Num -0.063* 0.037 -0.072* 0.038
Sub -0.442 0.315 -0.333 0.323
Agg 0.004 0.003 0.004 0.003
_cons -1.463** 0.741 -1.502** 0.745
灌溉水
生产率方程
(2)
Drip 17.158* 9.701 16.188*** 5.335
Rare 1.685 2.058 2.962 1.879
Gen 11.339 10.011 11.790 9.920
Age -0.287 0.335 -0.323 0.328
Vyear 0.036 0.419 -0.092 0.324
Edu 1.444 1.221 1.184 1.203
Comm 5.142** 2.142 5.261*** 2.044
Fer -0.002* 0.001 -0.002* 0.001
Ofer 0.0002 0.002 0.0005 0.002
Spe 27.218** 12.890 21.548* 13.002
_cons -12.053 25.602 -15.859 25.698
灌溉水
净收益方程
(3)
WP 2.675*** 0.346 2.466*** 0.083
P 73.834*** 6.440 74.411*** 6.479
Wprice -30.690*** 9.000 -30.494*** 9.104
Seed 1.671*** 0.272 1.691*** 0.274
Tfer -0.103 0.249 -0.132 0.246
Nm -3.915*** 0.708 -3.892*** 0.715
Pes -0.019 0.105 -0.024 0.106
_cons -54.048*** 14.930 -47.049*** 8.778
独立性检验 /atanhrho_12 -0.167 0.212
/atanhrho_13 0.011 0.096
/atanhrho_23 -0.188 0.275