浙江农业学报 ›› 2022, Vol. 34 ›› Issue (12): 2809-2822.DOI: 10.3969/j.issn.1004-1524.2022.12.24
• 农业经济与发展 • 上一篇
高雪萍1(), 张予涵1, 张梦玲1, 廖文梅1,2,*(
)
收稿日期:
2022-04-26
出版日期:
2022-12-25
发布日期:
2022-12-26
通讯作者:
廖文梅
作者简介:
*廖文梅,E-mail:liaowenmei@126.com基金资助:
GAO Xueping1(), ZHANG Yuhan1, ZHANG Mengling1, LIAO Wenmei1,2,*(
)
Received:
2022-04-26
Online:
2022-12-25
Published:
2022-12-26
Contact:
LIAO Wenmei
摘要:
利用江西省549份水稻种植户数据,采用普通最小二乘法(OLS)、倾向得分匹配法(PSM),从微观层面分析互联网信息技术使用对水稻农业生产率的影响。研究结果表明,使用互联网信息技术可以显著提高水稻的土地生产率和全要素生产率,但是增产效应大于增效的效应。使用倾向得分匹配方法对比基准回归结果后,仍然得到了一致结论。异质性结果表明,考虑农户教育水平差异,互联网信息技术使用仅对较低教育水平农户土地生产率的促进作用显著,对全要素生产率的提升效应仅对较高教育水平农户显著;考虑农业经营规模差异,互联网信息技术使用仅对规模较大户的土地生产率和全要素生产率提升作用显著,在适度扩大土地经营规模的条件下,互联网信息技术的增产效应大于效率提升效应。因此需要持续推进农村互联网及配套基础设施建设,同时提高农民文化素养、鼓励规模经营,提升农民从互联网获取农业信息、技术的能力与需求。
中图分类号:
高雪萍, 张予涵, 张梦玲, 廖文梅. 互联网信息技术使用对农业生产率的影响分析——以江西省水稻种植户为例[J]. 浙江农业学报, 2022, 34(12): 2809-2822.
GAO Xueping, ZHANG Yuhan, ZHANG Mengling, LIAO Wenmei. Analysis of the impact of use of internet information technology on agricultural productivity: a case study of rice farmers in Jiangxi Province, China[J]. Acta Agriculturae Zhejiangensis, 2022, 34(12): 2809-2822.
变量 Variable | 变量解释 Variable interpretation | 全样本(549) Full sample(549) | 使用互联网信息技术样本 (285) Sample of using internet information technology(285) | 未使用互联网信息技 术样本(264) Not using internet samples(264) | |||
---|---|---|---|---|---|---|---|
平均值 Average value | 标准差 Standard deviation | 平均值 Average value | 标准差 Standard deviation | 平均值 Average value | 标准差 Standard deviation | ||
产出变量 Output variable | |||||||
水稻总产量 Total rice production | 连续变量 Continuous variable/kg | 4 823.462 | 13 592.320 | 1 813.076 | 2 285.720 | 7 612.030 | 18 314.630 |
投入变量 Input variable | |||||||
农地投入 Agricultural land investment | 水稻播种面积 Rice sown area/hm2 | 0.671 | 1.762 | 0.983 | 2.354 | 0.334 | 0.517 |
劳动力投入 Labor input | 自有劳动力与雇佣劳动力之和 Sum of self owned labor and employed labor/h | 212.855 | 586.570 | 327.242 | 793.613 | 89.369 | 85.510 |
资本投入 Capital input | 水稻种植过程中耕整地、播种、地膜、 施肥、除草、打药、收获、运输、秸秆 处理费用/元 Fees for land preparation, sowing, film mulching, fertilization, herbicide, spraying, harvesting, transportation and straw treatment during rice planting/Yuan | 6 566.921 | 20 841.540 | 9 836.762 | 27 815.880 | 3 036.979 | 6 743.685 |
被解释变量 Explained variable | |||||||
土地生产率 Land productivity | 连续变量 Continuous variable/(kg·hm-2) | 7 059.479 | 2 093.505 | 7 384.032 | 1 971.983 | 6 709.109 | 2 166.923 |
全要素生产率 Total factor productivity | 综合效率值 Comprehensive efficiency value | 0.140 | 0.121 | 0.158 | 0.147 | 0.120 | 0.080 |
关键解释变量 Key explanatory variables | |||||||
是否使用互联网信息技术 Use of internet information technology | 1=是,0=否 1=Yes, 0=No | 0.519 | 0.500 | ||||
生产信息 Production information | |||||||
总工时 Total working hours | 连续变量 Continuous variable/h | 212.855 | 586.570 | 327.242 | 793.613 | 89.369 | 85.510 |
总费用 Total cost | 连续变量/元 Continuous variable/Yuan | 6 566.921 | 20 841.540 | 9 836.762 | 27 815.880 | 3 036.979 | 6 743.685 |
播种面积Seeded area | 连续变量Continuous variable/hm2 | 0.658 | 1.745 | 0.983 | 2.354 | 0.334 | 0.517 |
播种地块数 Number of sown plots | 按照实际调查数据 According to the actual survey data | 8.643 | 18.995 | 11.004 | 23.861 | 6.095 | 11.155 |
平均土地质量 Average land quality | 1=低,2=中,3=高 1=Low, 2=Medium, 3=High | 2.122 | 0.565 | 2.204 | 0.544 | 2.034 | 0.574 |
户主特征 Household head characteristics | |||||||
户主年龄 Age | 1=30岁及以下,2=31~40岁, 3=41~50岁,4=51~60岁, 5=61岁及以上 1=30 years old and below, 2=31-40 years old, 3=41-50 years old, 4=51-60 years old, 5=61 years old and above | 4.080 | 0.851 | 3.779 | 0.803 | 4.405 | 0.779 |
变量 Variable | 变量解释 Variable interpretation | 全样本(549) Full sample(549) | 使用互联网信息技术样本 (285) Sample of using internet information technology(285) | 未使用互联网信息技 术样本(264) Not using internet samples(264) | |||
平均值 Average value | 标准差 Standard deviation | 平均值 Average value | 标准差 Standard deviation | 平均值 Average value | 标准差 Standard deviation | ||
户主受教育程度 Education level | 1=没上学,2=小学,3=初中,4=高 中/中专,5=大专及以上 1=No school, 2=Primary school, 3=Junior high school, 4=High school/Technical secondary school, 5=Junior college and above | 2.519 | 0.791 | 2.649 | 0.807 | 2.379 | 0.750 |
户主健康程度 Health degree | 1=很不健康,2=不健康,3=一般, 4=健康,5=很健康 1=Very unhealthy, 2=Unhealthy, 3=Average, 4=Healthy, 5=Very healthy | 3.572 | 1.101 | 3.877 | 1.032 | 3.242 | 1.080 |
户主是否技能培训 Skill training | 1=是,0=否 1=Yes, 0=No | 0.107 | 0.310 | 0.133 | 0.341 | 0.080 | 0.271 |
家庭特征 Family characteristics | |||||||
家庭人口禀赋 Family population endowment | 按照实际调查数据 According to actual survey data | 4.687 | 1.986 | 4.758 | 1.827 | 4.610 | 2.146 |
是否有党员 Party member | 1=是,0=否 1=Yes, 0=No | 0.230 | 0.421 | 0. 263 | 0.441 | 0.193 | 0.396 |
村庄特征 Village characteristics | |||||||
村庄通网年限 Network fixed number of years | 按照实际调查数据 According to the actual survey data/a | 5.224 | 3.572 | 5.491 | 3.759 | 4.936 | 3.342 |
村庄农户通网比率 Network ratio | 通网线家庭数量/总家庭数量 Number of households with network cables/total number of households | 0.122 | 0.077 | 0.123 | 0.776 | 0.120 | 0.076 |
表1 主要解释变量及描述性统计
Table 1 Main explanatory variables and descriptive statistics
变量 Variable | 变量解释 Variable interpretation | 全样本(549) Full sample(549) | 使用互联网信息技术样本 (285) Sample of using internet information technology(285) | 未使用互联网信息技 术样本(264) Not using internet samples(264) | |||
---|---|---|---|---|---|---|---|
平均值 Average value | 标准差 Standard deviation | 平均值 Average value | 标准差 Standard deviation | 平均值 Average value | 标准差 Standard deviation | ||
产出变量 Output variable | |||||||
水稻总产量 Total rice production | 连续变量 Continuous variable/kg | 4 823.462 | 13 592.320 | 1 813.076 | 2 285.720 | 7 612.030 | 18 314.630 |
投入变量 Input variable | |||||||
农地投入 Agricultural land investment | 水稻播种面积 Rice sown area/hm2 | 0.671 | 1.762 | 0.983 | 2.354 | 0.334 | 0.517 |
劳动力投入 Labor input | 自有劳动力与雇佣劳动力之和 Sum of self owned labor and employed labor/h | 212.855 | 586.570 | 327.242 | 793.613 | 89.369 | 85.510 |
资本投入 Capital input | 水稻种植过程中耕整地、播种、地膜、 施肥、除草、打药、收获、运输、秸秆 处理费用/元 Fees for land preparation, sowing, film mulching, fertilization, herbicide, spraying, harvesting, transportation and straw treatment during rice planting/Yuan | 6 566.921 | 20 841.540 | 9 836.762 | 27 815.880 | 3 036.979 | 6 743.685 |
被解释变量 Explained variable | |||||||
土地生产率 Land productivity | 连续变量 Continuous variable/(kg·hm-2) | 7 059.479 | 2 093.505 | 7 384.032 | 1 971.983 | 6 709.109 | 2 166.923 |
全要素生产率 Total factor productivity | 综合效率值 Comprehensive efficiency value | 0.140 | 0.121 | 0.158 | 0.147 | 0.120 | 0.080 |
关键解释变量 Key explanatory variables | |||||||
是否使用互联网信息技术 Use of internet information technology | 1=是,0=否 1=Yes, 0=No | 0.519 | 0.500 | ||||
生产信息 Production information | |||||||
总工时 Total working hours | 连续变量 Continuous variable/h | 212.855 | 586.570 | 327.242 | 793.613 | 89.369 | 85.510 |
总费用 Total cost | 连续变量/元 Continuous variable/Yuan | 6 566.921 | 20 841.540 | 9 836.762 | 27 815.880 | 3 036.979 | 6 743.685 |
播种面积Seeded area | 连续变量Continuous variable/hm2 | 0.658 | 1.745 | 0.983 | 2.354 | 0.334 | 0.517 |
播种地块数 Number of sown plots | 按照实际调查数据 According to the actual survey data | 8.643 | 18.995 | 11.004 | 23.861 | 6.095 | 11.155 |
平均土地质量 Average land quality | 1=低,2=中,3=高 1=Low, 2=Medium, 3=High | 2.122 | 0.565 | 2.204 | 0.544 | 2.034 | 0.574 |
户主特征 Household head characteristics | |||||||
户主年龄 Age | 1=30岁及以下,2=31~40岁, 3=41~50岁,4=51~60岁, 5=61岁及以上 1=30 years old and below, 2=31-40 years old, 3=41-50 years old, 4=51-60 years old, 5=61 years old and above | 4.080 | 0.851 | 3.779 | 0.803 | 4.405 | 0.779 |
变量 Variable | 变量解释 Variable interpretation | 全样本(549) Full sample(549) | 使用互联网信息技术样本 (285) Sample of using internet information technology(285) | 未使用互联网信息技 术样本(264) Not using internet samples(264) | |||
平均值 Average value | 标准差 Standard deviation | 平均值 Average value | 标准差 Standard deviation | 平均值 Average value | 标准差 Standard deviation | ||
户主受教育程度 Education level | 1=没上学,2=小学,3=初中,4=高 中/中专,5=大专及以上 1=No school, 2=Primary school, 3=Junior high school, 4=High school/Technical secondary school, 5=Junior college and above | 2.519 | 0.791 | 2.649 | 0.807 | 2.379 | 0.750 |
户主健康程度 Health degree | 1=很不健康,2=不健康,3=一般, 4=健康,5=很健康 1=Very unhealthy, 2=Unhealthy, 3=Average, 4=Healthy, 5=Very healthy | 3.572 | 1.101 | 3.877 | 1.032 | 3.242 | 1.080 |
户主是否技能培训 Skill training | 1=是,0=否 1=Yes, 0=No | 0.107 | 0.310 | 0.133 | 0.341 | 0.080 | 0.271 |
家庭特征 Family characteristics | |||||||
家庭人口禀赋 Family population endowment | 按照实际调查数据 According to actual survey data | 4.687 | 1.986 | 4.758 | 1.827 | 4.610 | 2.146 |
是否有党员 Party member | 1=是,0=否 1=Yes, 0=No | 0.230 | 0.421 | 0. 263 | 0.441 | 0.193 | 0.396 |
村庄特征 Village characteristics | |||||||
村庄通网年限 Network fixed number of years | 按照实际调查数据 According to the actual survey data/a | 5.224 | 3.572 | 5.491 | 3.759 | 4.936 | 3.342 |
村庄农户通网比率 Network ratio | 通网线家庭数量/总家庭数量 Number of households with network cables/total number of households | 0.122 | 0.077 | 0.123 | 0.776 | 0.120 | 0.076 |
项目 Item | 土地生产率 Land productivity | 全要素生产率 Total factor productivity |
---|---|---|
关键解释变量 Key explanatory variables | ||
是否使用互联网信息技术 Use of internet Information technology | 0.194*** (0.051) | 0.040*** (0.010) |
生产信息 Production information | ||
总工时 Total working hours | 0.040** (0.020) | -0.058*** (0.006) |
总费用 Total cost | -0.003 (0.026) | 0.023*** (0.006) |
播种面积 Seeded area | -0.003 (0.029) | 0.036*** (0.008) |
播种地块数 Number of sown plots | -0.004 (0.004) | -0.002** (0.001) |
平均土地质量 Average land quality | 0.128*** (0.040) | 0.014 (0.008) |
户主特征 Household head characteristics | ||
户主年龄 Age | 0.058* (0.030) | -0.002 (0.006) |
户主受教育程度 Education level | -0.090*** (0.028) | -0.014*** (0.005) |
户主健康程度 Health degree | 0.067*** (0.019) | 0.008** (0.005) |
户主是否技能培训 Skill training | 0.014 (0.057) | 0.014 (0.017) |
家庭特征 Family characteristics | ||
家庭人口禀赋 Family population endowment | -0.009 (0.013) | -0.000 (0.002) |
是否有党员 Party member | 0.035 (0.048) | 0.004 (0.011) |
村庄特征 Village characteristics | ||
村庄通网年限 Network fixed number of years | 0.002 (0.006) | -0.001 (0.001) |
村庄农户通网比率 Network ratio | -0.317 (0.315) | -0.063 (0.056) |
Obs | 549 | 549 |
Prob>F | 0.000 | 0.000 |
R2 | 0.125 | 0.301 |
表2 互联网信息技术使用对农业生产率的OLS回归结果
Table 2 OLS regression results of internet information technology use on agricultural productivity
项目 Item | 土地生产率 Land productivity | 全要素生产率 Total factor productivity |
---|---|---|
关键解释变量 Key explanatory variables | ||
是否使用互联网信息技术 Use of internet Information technology | 0.194*** (0.051) | 0.040*** (0.010) |
生产信息 Production information | ||
总工时 Total working hours | 0.040** (0.020) | -0.058*** (0.006) |
总费用 Total cost | -0.003 (0.026) | 0.023*** (0.006) |
播种面积 Seeded area | -0.003 (0.029) | 0.036*** (0.008) |
播种地块数 Number of sown plots | -0.004 (0.004) | -0.002** (0.001) |
平均土地质量 Average land quality | 0.128*** (0.040) | 0.014 (0.008) |
户主特征 Household head characteristics | ||
户主年龄 Age | 0.058* (0.030) | -0.002 (0.006) |
户主受教育程度 Education level | -0.090*** (0.028) | -0.014*** (0.005) |
户主健康程度 Health degree | 0.067*** (0.019) | 0.008** (0.005) |
户主是否技能培训 Skill training | 0.014 (0.057) | 0.014 (0.017) |
家庭特征 Family characteristics | ||
家庭人口禀赋 Family population endowment | -0.009 (0.013) | -0.000 (0.002) |
是否有党员 Party member | 0.035 (0.048) | 0.004 (0.011) |
村庄特征 Village characteristics | ||
村庄通网年限 Network fixed number of years | 0.002 (0.006) | -0.001 (0.001) |
村庄农户通网比率 Network ratio | -0.317 (0.315) | -0.063 (0.056) |
Obs | 549 | 549 |
Prob>F | 0.000 | 0.000 |
R2 | 0.125 | 0.301 |
项目Item | 系数Coefficient |
---|---|
生产信息 Production information | |
总工时 Total working hours | 0.361*** (0.121) |
总费用 Total cost | 0.114 (0.124) |
播种面积 Seeded area | 0.418* (0.240) |
播种地块数 Number of sown plots | -0.025* (0.015) |
平均土地质量 Average land quality | 0.344* (0.187) |
户主特征 Household head characteristics | |
户主年龄 Age | -0.938*** (0.133) |
户主受教育程度 Education level | 0.255* (0.137) |
户主健康程度 Health degree | 0.268*** (0.096) |
户主是否技能培训 Skill training | -0.200 (0.353) |
家庭特征 Family characteristics | |
家庭人口禀赋 Family population endowment | 0.011 (0.047) |
是否有党员 Party member | 0.431* (0.248) |
村庄特征 Village characteristics | |
村庄通网年限 Network fixed number of years | 0.062** (0.031) |
村庄农户通网比率 Network ratio | -1.074 (1.408) |
Pseudo-R2 | 0.211 |
Prob>chi2 | <0.001 |
Obs | 549 |
表3 基于Logit模型的农户互联网信息技术使用估计结果
Table 3 Estimation results of farmers' internet information technology use based on Logit model
项目Item | 系数Coefficient |
---|---|
生产信息 Production information | |
总工时 Total working hours | 0.361*** (0.121) |
总费用 Total cost | 0.114 (0.124) |
播种面积 Seeded area | 0.418* (0.240) |
播种地块数 Number of sown plots | -0.025* (0.015) |
平均土地质量 Average land quality | 0.344* (0.187) |
户主特征 Household head characteristics | |
户主年龄 Age | -0.938*** (0.133) |
户主受教育程度 Education level | 0.255* (0.137) |
户主健康程度 Health degree | 0.268*** (0.096) |
户主是否技能培训 Skill training | -0.200 (0.353) |
家庭特征 Family characteristics | |
家庭人口禀赋 Family population endowment | 0.011 (0.047) |
是否有党员 Party member | 0.431* (0.248) |
村庄特征 Village characteristics | |
村庄通网年限 Network fixed number of years | 0.062** (0.031) |
村庄农户通网比率 Network ratio | -1.074 (1.408) |
Pseudo-R2 | 0.211 |
Prob>chi2 | <0.001 |
Obs | 549 |
变量名称 Variable | 均值差异Mean | 偏差 Deviation/% | T值 T value | |||
---|---|---|---|---|---|---|
实验组Treated | 控制组Untreated | |||||
生产信息Production information | ||||||
总工时Total working hours | 匹配前Unmatched | 4.778 | 4.127 | 57.300 | 6.660*** | |
匹配后Matched | 4.564 | 4.626 | -5.400 | -0.620 | ||
总费用Total cost | 匹配前Unmatched | 7.895 | 7.239 | 51.400 | 5.99*** | |
匹配后Matched | 7.639 | 7.806 | -13.100 | -1.440 | ||
播种面积Seeded area | 匹配前Unmatched | 0.983 | 0.334 | 38.100 | 4.380*** | |
匹配后Matched | 0.494 | 0.572 | -4.500 | -1.170 | ||
播种地块数Number of sown plots | 匹配前Unmatched | 11.004 | 6.095 | 26.400 | 3.050*** | |
匹配后Matched | 7.361 | 8.181 | -4.400 | -0.780 | ||
平均土地质量Average land quality | 匹配前Unmatched | 2.204 | 2.034 | 30.300 | 3.550*** | |
匹配后Matched | 2.151 | 2.151 | 0.000 | 0.000 | ||
户主特征Household head characteristics | ||||||
户主年龄Age | 匹配前Unmatched | 3.779 | 4.405 | -79.200 | -9.260*** | |
匹配后Matched | 3.929 | 4.000 | -9.000 | -0.990 | ||
户主受教育程度Education level | 匹配前Unmatched | 2.649 | 2.379 | 34.700 | 4.060*** | |
匹配后Matched | 2.597 | 2.592 | 0.500 | 0.060 | ||
户主健康程度Health degree | 匹配前Unmatched | 3.877 | 3.242 | 60.100 | 7.040*** | |
匹配后Matched | 3.748 | 3.744 | 0.400 | 0.040 | ||
户主是否技能培训Skill training | 匹配前Unmatched | 0.130 | 0.080 | 16.400 | 1.920* | |
匹配后Matched | 0.113 | 0.122 | -2.700 | -0.280 | ||
家庭特征Family characteristics | ||||||
家庭人口禀赋 | 匹配前Unmatched | 4.912 | 4.648 | 12.300 | 1.440 | |
Family population endowment | 匹配后Matched | 4.958 | 4.929 | 1.400 | 0.150 | |
是否有党员Party member | 匹配前Unmatched | 0.263 | 0.193 | 16.700 | 1.950* | |
匹配后Matched | 0.261 | 0.269 | -2.000 | -0.210 | ||
村庄特征Village characteristics | ||||||
村庄通网年限 | 匹配前Unmatched | 5.491 | 4.936 | 15.600 | 1.820* | |
Network fixed number of years | 匹配后Matched | 5.218 | 5.345 | -3.500 | -0.370 | |
村庄农户通网比率Network ratio | 匹配前Unmatched | 0.123 | 0.120 | 2.900 | 0.340 | |
匹配后Matched | 0.118 | 0.113 | 6.500 | 0.710 |
表4 控制变量的平衡性检验结果
Table 4 Balance test results of control variables
变量名称 Variable | 均值差异Mean | 偏差 Deviation/% | T值 T value | |||
---|---|---|---|---|---|---|
实验组Treated | 控制组Untreated | |||||
生产信息Production information | ||||||
总工时Total working hours | 匹配前Unmatched | 4.778 | 4.127 | 57.300 | 6.660*** | |
匹配后Matched | 4.564 | 4.626 | -5.400 | -0.620 | ||
总费用Total cost | 匹配前Unmatched | 7.895 | 7.239 | 51.400 | 5.99*** | |
匹配后Matched | 7.639 | 7.806 | -13.100 | -1.440 | ||
播种面积Seeded area | 匹配前Unmatched | 0.983 | 0.334 | 38.100 | 4.380*** | |
匹配后Matched | 0.494 | 0.572 | -4.500 | -1.170 | ||
播种地块数Number of sown plots | 匹配前Unmatched | 11.004 | 6.095 | 26.400 | 3.050*** | |
匹配后Matched | 7.361 | 8.181 | -4.400 | -0.780 | ||
平均土地质量Average land quality | 匹配前Unmatched | 2.204 | 2.034 | 30.300 | 3.550*** | |
匹配后Matched | 2.151 | 2.151 | 0.000 | 0.000 | ||
户主特征Household head characteristics | ||||||
户主年龄Age | 匹配前Unmatched | 3.779 | 4.405 | -79.200 | -9.260*** | |
匹配后Matched | 3.929 | 4.000 | -9.000 | -0.990 | ||
户主受教育程度Education level | 匹配前Unmatched | 2.649 | 2.379 | 34.700 | 4.060*** | |
匹配后Matched | 2.597 | 2.592 | 0.500 | 0.060 | ||
户主健康程度Health degree | 匹配前Unmatched | 3.877 | 3.242 | 60.100 | 7.040*** | |
匹配后Matched | 3.748 | 3.744 | 0.400 | 0.040 | ||
户主是否技能培训Skill training | 匹配前Unmatched | 0.130 | 0.080 | 16.400 | 1.920* | |
匹配后Matched | 0.113 | 0.122 | -2.700 | -0.280 | ||
家庭特征Family characteristics | ||||||
家庭人口禀赋 | 匹配前Unmatched | 4.912 | 4.648 | 12.300 | 1.440 | |
Family population endowment | 匹配后Matched | 4.958 | 4.929 | 1.400 | 0.150 | |
是否有党员Party member | 匹配前Unmatched | 0.263 | 0.193 | 16.700 | 1.950* | |
匹配后Matched | 0.261 | 0.269 | -2.000 | -0.210 | ||
村庄特征Village characteristics | ||||||
村庄通网年限 | 匹配前Unmatched | 5.491 | 4.936 | 15.600 | 1.820* | |
Network fixed number of years | 匹配后Matched | 5.218 | 5.345 | -3.500 | -0.370 | |
村庄农户通网比率Network ratio | 匹配前Unmatched | 0.123 | 0.120 | 2.900 | 0.340 | |
匹配后Matched | 0.118 | 0.113 | 6.500 | 0.710 |
项目 Item | 匹配方法 Matching method | 实验组/控制组 Treated/Untreated | 平均处理效应 ATT | T值 T value |
---|---|---|---|---|
土地生产率Land productivity | k近邻匹配(k=1) k-nearest neighbor matching(k=1) | 264/285 | 0.161** | 2.28 |
半径匹配(卡尺=0.01) Radius matching(ε=0.01) | 264/285 | 0.196*** | 3.19 | |
核匹配Kernel matching | 264/285 | 0.219*** | 3.86 | |
均值Mean value | — | 0.192 | — | |
全要素生产效率 | k近邻匹配(k=1) k-nearest neighbor matching(k=1) | 264/285 | 0.034** | 2.52 |
Total factor productivity | 半径匹配(卡尺=0.01) Radius matching(ε=0.01) | 264/285 | 0.037*** | 3.15 |
核匹配Kernel matching | 264/285 | 0.036*** | 3.15 | |
均值Mean value | — | 0.036 | — |
表5 互联网信息技术使用的平均处理效应
Table 5 Average processing effect of internet information technology use
项目 Item | 匹配方法 Matching method | 实验组/控制组 Treated/Untreated | 平均处理效应 ATT | T值 T value |
---|---|---|---|---|
土地生产率Land productivity | k近邻匹配(k=1) k-nearest neighbor matching(k=1) | 264/285 | 0.161** | 2.28 |
半径匹配(卡尺=0.01) Radius matching(ε=0.01) | 264/285 | 0.196*** | 3.19 | |
核匹配Kernel matching | 264/285 | 0.219*** | 3.86 | |
均值Mean value | — | 0.192 | — | |
全要素生产效率 | k近邻匹配(k=1) k-nearest neighbor matching(k=1) | 264/285 | 0.034** | 2.52 |
Total factor productivity | 半径匹配(卡尺=0.01) Radius matching(ε=0.01) | 264/285 | 0.037*** | 3.15 |
核匹配Kernel matching | 264/285 | 0.036*** | 3.15 | |
均值Mean value | — | 0.036 | — |
项目 Item | 匹配方法 Matching method | ATT | |
---|---|---|---|
土地生产率 Land productivity | 全要素生产率 Total factor productivity | ||
较低教育水平 | k近邻匹配(k=1) k-nearest neighbor matching(k=1) | 0.221*(1.87) | 0.032(1.41) |
Low education level | 半径匹配(卡尺=0.01) Radius matching(ε=0.01) | 0.170**(1.98) | 0.046**(2.54) |
核匹配Kernel matching | 0.167*(1.95) | 0.035**(2.09) | |
均值Mean value | 0.186 | 0.037 | |
较高教育水平 | k近邻匹配(k=1) k-nearest neighbor matching(k=1) | 0.160(1.33) | 0.052***(2.94) |
High education level | 半径匹配(卡尺=0.01) Radius matching(ε=0.01) | 0.143(1.21) | 0.051***(2.75) |
核匹配Kernel matching | 0.203**(2.18) | 0.039**(2.39) | |
均值Mean value | 0.167 | 0.047 |
表6 不同教育水平的平均处理效应
Table 6 Average processing effect of different education levels
项目 Item | 匹配方法 Matching method | ATT | |
---|---|---|---|
土地生产率 Land productivity | 全要素生产率 Total factor productivity | ||
较低教育水平 | k近邻匹配(k=1) k-nearest neighbor matching(k=1) | 0.221*(1.87) | 0.032(1.41) |
Low education level | 半径匹配(卡尺=0.01) Radius matching(ε=0.01) | 0.170**(1.98) | 0.046**(2.54) |
核匹配Kernel matching | 0.167*(1.95) | 0.035**(2.09) | |
均值Mean value | 0.186 | 0.037 | |
较高教育水平 | k近邻匹配(k=1) k-nearest neighbor matching(k=1) | 0.160(1.33) | 0.052***(2.94) |
High education level | 半径匹配(卡尺=0.01) Radius matching(ε=0.01) | 0.143(1.21) | 0.051***(2.75) |
核匹配Kernel matching | 0.203**(2.18) | 0.039**(2.39) | |
均值Mean value | 0.167 | 0.047 |
项目 Item | 匹配方法 Matching method | ATT | |
---|---|---|---|
土地生产率 Land productivity | 全要素生产率 Total factor productivity | ||
规模较小户 | k近邻匹配(k=1) k-nearest neighbor matching(k=1) | 0.107(1.39) | 0.022(1.14) |
Small scale households | 半径匹配(卡尺=0.01) Radius matching(ε=0.01) | 0.136*(1.82) | 0.026*(1.72) |
核匹配Kernel matching | 0.152**(1.98) | 0.025(1.59) | |
均值Mean value | 0.132 | 0.024 | |
规模较大户 | k近邻匹配(k=1) k-nearest neighbor matching(k=1) | 0.327**(2.23) | 0.061***(2.85) |
Large scale household | 半径匹配(卡尺=0.01) Radius matching(ε=0.01) | 0.356***(3.29) | 0.074***(3.54) |
核匹配Kernel matching | 0.232**(2.25) | 0.054***(3.05) | |
均值Mean value | 0.305 | 0.063 |
表7 不同农业经营规模的平均处理效应
Table 7 Average treatment effect of different agricultural management scale
项目 Item | 匹配方法 Matching method | ATT | |
---|---|---|---|
土地生产率 Land productivity | 全要素生产率 Total factor productivity | ||
规模较小户 | k近邻匹配(k=1) k-nearest neighbor matching(k=1) | 0.107(1.39) | 0.022(1.14) |
Small scale households | 半径匹配(卡尺=0.01) Radius matching(ε=0.01) | 0.136*(1.82) | 0.026*(1.72) |
核匹配Kernel matching | 0.152**(1.98) | 0.025(1.59) | |
均值Mean value | 0.132 | 0.024 | |
规模较大户 | k近邻匹配(k=1) k-nearest neighbor matching(k=1) | 0.327**(2.23) | 0.061***(2.85) |
Large scale household | 半径匹配(卡尺=0.01) Radius matching(ε=0.01) | 0.356***(3.29) | 0.074***(3.54) |
核匹配Kernel matching | 0.232**(2.25) | 0.054***(3.05) | |
均值Mean value | 0.305 | 0.063 |
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