• Journal of Natural Resources
  • Vol. 35, Issue 2, 413 (2020)
Xiao-ji HU1, Li TANG2, Ya-hui LIU2, and Xiao-dan DONG2、*
Author Affiliations
  • 1School of Finance, Renmin University of China, Beijing 100872, China
  • 2School of Agriculture Economics and Rural Development, Renmin University of China, Beijing 100872, China
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    DOI: 10.31497/zrzyxb.20200213 Cite this Article
    Xiao-ji HU, Li TANG, Ya-hui LIU, Xiao-dan DONG. Effectiveness of industrial water price leverage: Based on simultaneous equation model[J]. Journal of Natural Resources, 2020, 35(2): 413 Copy Citation Text show less
    变量名称变量符号均值标准差最小值最大值中位数
    工业用水量/103 m3Water40991.3051693.40300.00310000.0025220.00
    工业自来水价格/(元/t)Price3.261.161.256.603.00
    工业企业数Indnum1461.501537.7587.007286.00951.00
    工业企业平均产值/103Ave_output32836.7015698.1010736.20100000.0030303.50
    供水固定资产投资/103Investment18302.0039371.6089.00240000.005980.50
    水资源总量/亿m3Resource72.9886.891.60419.3038.36
    建成区供水管道密度/(km/km2)Density12.846.603.5536.6911.23
    工业企业平均利润/亿元Ave_profit0.190.15-0.050.970.16
    工业企业用水重复利用率/%Reuserate46.9540.480.0098.4450.76
    Table 1. Selection and descriptive statistics of variables
    变量名称模型1 OLS模型2 2SLS模型3 3SLS模型4 3SLS_iter
    Water
    Price-0.857***-3.412***-3.424***-3.426***
    (-4.76)(-4.42)(-4.51)(-4.50)
    Indnum0.797***0.891***0.889***0.889***
    (13.41)(10.22)(10.42)(10.38)
    Ave_output0.483***0.881***0.895***0.897***
    (3.42)(3.87)(4.45)(4.43)
    常数项0.575-1.309-1.427-1.441
    (0.38)(-0.60)(-0.72)(-0.72)
    Price
    Water-0.0310.085**0.112***0.112***
    (-1.35)(2.06)(2.89)(2.80)
    Resource-0.074***-0.122***-0.146***-0.147***
    (-3.39)(-4.54)(-5.88)(-5.67)
    Investment0.051***0.031*-0.000-0.001
    (3.41)(1.86)(-0.01)(-0.07)
    Density0.015-0.047-0.091**-0.092*
    (0.29)(-0.82)(-1.99)(-1.93)
    Ave_profit0.174-0.0430.0420.045
    (0.84)(-0.19)(0.22)(0.23)
    常数项1.192***0.565**0.749***0.755***
    (5.87)(2.01)(2.77)(2.68)
    N216216216216
    R20.476-0.021-0.026-0.026
    Table 2. Estimation results of the models
    变量名称东部地区中部地区西部地区
    Water
    Price-2.346***-1.852**-9.387
    (-3.60)(-2.36)(-1.43)
    Indnum0.515**0.0150.755
    (2.23)(0.04)(0.65)
    Ave_Output0.371*0.703**1.461**
    (1.77)(2.12)(2.45)
    常数项2.6520.012-8.299
    (1.19)(0.00)(-1.03)
    Price
    Water0.062-0.0030.168**
    (1.41)(-0.05)(2.55)
    Resource-0.158***-0.133***-0.076**
    (-4.65)(-4.05)(-2.39)
    Investment0.034*0.025-0.025
    (1.66)(1.38)(-1.19)
    Density-0.153**-0.186**-0.126
    (-2.36)(-2.33)(-1.46)
    Ave_profit-0.2970.300-0.017
    (-0.87)(0.82)(-0.08)
    常数项1.366***1.620***0.273
    (4.77)(3.07)(0.62)
    N976653
    R20.3790.310-4.157
    Table 3. Subregion estimation results of 3SLS model
    变量名称OLSWLS
    Price16.870**17.850**
    (2.28)(2.43)
    Resource-7.370***-7.470***
    (-3.39)(-3.45)
    Indnum13.080***13.570***
    (5.20)(5.54)
    常数项-33.940*-38.000**
    (-1.89)(-2.13)
    N216216
    R20.1770.187
    Table 4. Estimation results of industrial water's reuse rate
    Xiao-ji HU, Li TANG, Ya-hui LIU, Xiao-dan DONG. Effectiveness of industrial water price leverage: Based on simultaneous equation model[J]. Journal of Natural Resources, 2020, 35(2): 413
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