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
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张哲晰,穆月英,侯玲玲,杨鑫
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Resource and economic effects of drip irrigation in the Bohai Rim area: Consistency of goals of the government and farmers
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Zhexi ZHANG,Yueying MU,Lingling HOU,Xin YANG
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表3 基于CMP/OLS方法的联立方程组参数估计结果
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Table 3 Parameter estimation results of simultaneous equations based on conditional mixed process (CMP) / ordinary least squares (OLS) method
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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 | | | |
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