Resources Science, Volume. 42, Issue 9, 1777(2020)

Household decisions on adoption of advanced storage facilities and impacts on maize storage volume and losses in China

Yi LUO, Haimin MIAO, Dong HUANG, Laping WU*, and Junfeng ZHU
Author Affiliations
  • College of Economics and Management, China Agricultural University, Beijing 100083, China
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    Figures & Tables(8)
    Distribution of the propensity scores and common support for propensity score estimation for advanced storage facility adopters and non-adopters
    • Table 1. Sample distribution and the types of adopted facilities

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      Table 1. Sample distribution and the types of adopted facilities

      玉米种植区域调研省份仓类设施/户其他设施/户
      玉米优势区北方玉米优势区黑龙江、吉林、辽宁、内蒙古、新疆、甘肃、宁夏148309
      黄淮海玉米优势区北京、天津、河北、河南、山东、山西、陕西、江苏、安徽126343
      西南玉米优势区四川、重庆、云南、贵州92102
      其他地区南方丘陵区广西、湖南、湖北4933
      合计415787
    • Table 2. Household characteristics of adopters and non-adopters of advanced storage facilities

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      Table 2. Household characteristics of adopters and non-adopters of advanced storage facilities

      特征指标变量变量赋值非采用者(N=787)采用者(N=415)t-test
      均值标准差均值标准差均值差异
      决策者/户主特征性别男=1;女=21.180.381.150.360.03
      年龄决策者/户主年龄/年53.4210.9354.7011.12-1.29*
      教育年限决策者/户主受教育年限/年7.122.637.032.490.09
      宗教信仰是否信教。是=1;否=21.950.211.990.08-0.04***
      家庭经济特征家庭人口数家庭人口总数/人3.731.693.861.53-0.13
      家庭收入水平家庭年收入(元)的对数10.660.7810.830.63-0.17***
      家庭存款情况家庭是否有存款。是=1;否=00.460.500.520.50-0.06*
      生产经营特征农技培训是否参与农技培训。是=1;否=21.900.301.940.28-0.04**
      土地面积耕地总面积/亩12.0317.8315.4022.60-3.37***
      玉米种植面积玉米种植面积/亩8.4613.3011.9218.71-3.45***
      玉米产量玉米产量/kg4889.338997.676774.5511596.31-1885.22***
      其他指标距城镇远近距最近城镇距离/km5.985.834.964.891.02***
      节约意识是否参与减损实验。是=1;否=21.620.491.600.490.02
    • Table 3. Household maize storage behavior and losses

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      Table 3. Household maize storage behavior and losses

      变量变量赋值非采用者(N=787)采用者(N=415)t-test
      均值标准差均值标准差均值差异
      玉米储存规模玉米储存数量/kg3593.15198.314655.30413.311062.15***
      玉米储存时长储存时间/季度1.671.442.021.47-0.35***
      鼠害严重程度无=1;轻=2;中=3;严重=42.270.861.840.880.44***
      玉米储存损失玉米储存损失/kg53.02151.3420.0536.3732.97***
      储存损失率loss=损失/储存规模/%2.263.780.871.171.39***
    • Table 4. Estimation of the logit model

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      Table 4. Estimation of the logit model

      特征指标变量系数标准差
      决策者/户主特征性别-0.32*0.18
      年龄0.02***0.01
      教育年限0.000.03
      宗教信仰1.89***0.30
      家庭经济特征家庭人口数-0.040.61
      家庭收入水平0.30***0.11
      家庭存款情况0.180.13
      生产经营特征农技培训0.85***0.26
      土地面积-0.010.01
      玉米种植面积0.04***0.01
      玉米产量-0.000.00
      其他指标距城镇远近-0.02**0.01
      节约意识0.160.18
      cons-8.80***1.86
      地区虚拟变量已控制
      样本量1202
      LR chi2(17)136.32
      Prob>chi20.00
      Pseudo R20.09
      Log likelihood-706.49
    • Table 5. Tests for selection bias after matching

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      Table 5. Tests for selection bias after matching

      特征指标变量变量赋值实验组N=415)控制组N=786)标准偏误/%误差消减/%t-test p值)
      决策者/户主特征性别男=1;女=21.151.15-1.1084.200.87
      年龄决策者/户主年龄/年54.7054.83-1.2090.000.86
      教育年限决策者/户主受教育年限/年7.037.10-2.4029.50.73
      宗教信仰是否信教。是=1;否=21.991.991.3094.600.73
      家庭经济特征家庭人口数家庭人口总数/人3.863.92-3.8050.400.59
      家庭收入水平家庭年收入/元,取对数10.8310.86-3.8083.600.56
      家庭存款情况家庭是否有存款。是=1;否=00.520.53-1.8083.700.79
      生产经营特征农技培训是否参与农技培训。是=1;否=21.941.94-1.2091.800.85
      土地面积耕地总面积/亩15.4013.877.5054.700.31
      玉米种植面积玉米种植面积/亩11.9210.439.2056.900.23
      玉米产量玉米产量/kg6774.605660.8010.7040.900.15
      其他指标距城镇远近距最近城镇距离/km4.964.842.3087.700.70
      节约意识是否参与减损实验。是=1;否=21.861.86-0.2097.600.97
    • Table 6. Statistical tests to evaluate the matching

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      Table 6. Statistical tests to evaluate the matching

      匹配方法Pseudo-R2LR统计量PMean BiasMedian Bias
      匹配前0.087134.740.00015.414.4
      近邻匹配0.0078.300.9395.04.0
      半径匹配0.0034.010.9993.01.6
      核匹配0.0044.120.9993.22.1
    • Table 7. Impact of advanced storage facility adoption on storage losses

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      Table 7. Impact of advanced storage facility adoption on storage losses

      结果变量匹配方法实验组控制组平均处理效应(ATT标准差t-stat
      玉米储存规模/kg近邻匹配4655.303286.751368.55536.832.55
      半径匹配4655.303466.531188.77493.172.41
      核匹配4655.303455.641199.66494.882.42
      玉米储存时长/季度近邻匹配2.021.870.150.111.28
      半径匹配2.021.830.190.101.87
      核匹配2.021.830.190.101.90
      储存损失/kg近邻匹配20.0547.88-27.839.60-2.90
      半径匹配20.0553.15-33.107.53-4.43
      核匹配20.0552.84-32.797.62-4.31
      储存损失率/%近邻匹配0.872.58-1.710.25-6.91
      半径匹配0.872.75-1.880.19-9.81
      核匹配0.872.75-1.880.19-9.72
      鼠害程度近邻匹配1.842.31-0.480.07-7.03
      半径匹配1.842.31-0.480.06-7.95
      核匹配1.842.31-0.480.06-7.93
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    Yi LUO, Haimin MIAO, Dong HUANG, Laping WU, Junfeng ZHU. Household decisions on adoption of advanced storage facilities and impacts on maize storage volume and losses in China[J]. Resources Science, 2020, 42(9): 1777

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    Paper Information

    Received: Oct. 28, 2019

    Accepted: --

    Published Online: Apr. 23, 2021

    The Author Email: WU Laping (wulp@cau.edu.cn)

    DOI:10.18402/resci.2020.09.12

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