C. Xác định tổng lợi ích X hội ròng (B) ph ã ơng án 1:
A. Xác định lợi ích X hội ròng các khâu thu gom,vận chuyển và xử lý rác ã
SH tại b i rác Nam Sơn:ã
1. Đờng cầu X hội:ã
Để xác định đờng cầu XH ta căn cứ vào mức WTP của ngời dân đợc hởng dịch vụ thu gom rác SH.
Kết quả tính ở phần trên (phần IV.2,E), ta có : AWTP = 238 095 đ/tấn rác.
2. Ước lợng hàm cung sản xuất (MC1):
2.1. Ước lợng hàm tổng chi phí xử lý (TC1): Kết quả của Mfit3 cho thấy:
OBS. C1 Q1 BPQ1 INPT1999 2.38E+10 107427.3 1.15E+10 1.0000 1999 2.38E+10 107427.3 1.15E+10 1.0000 2000 3.18E+10 153866.5 2.37E+10 1.0000 2001 3.99E+10 177765.0 3.16E+10 1.0000 2002 3.49E+10 116895.2 1.37E+10 1.0000 2003 3.99E+10 132675.8 1.76E+10 1.0000 2004 4.36E+10 149723.5 2.24E+10 1.0000 2005 4.73E+10 168253.6 2.83E+10 1.0000 2006 5.10E+10 188266.2 3.54E+10 1.0000 2007 5.47E+10 209761.2 4.40E+10 1.0000 2008 5.84E+10 233035.0 5.43E+10 1.0000 2009 6.21E+10 258087.8 6.66E+10 1.0000 2010 6.58E+10 285364.1 8.14E+10 1.0000 2011 6.98E+10 296334.0 8.78E+10 1.0000 2012 7.32E+10 307600.3 9.46E+10 1.0000 2013 7.69E+10 319014.8 1.02E+11 1.0000 2014 8.06E+10 328354.0 1.08E+11 1.0000 2015 8.43E+10 342436.9 1.17E+11 1.0000 2016 8.80E+10 352369.1 1.24E+11 1.0000 2017 9.17E+10 367045.0 1.35E+11 1.0000 2018 9.54E+10 377570.1 1.43E+11 1.0000 2019 9.91E+10 393283.6 1.55E+11 1.0000 2020 1.03E+11 409441.9 1.68E+11 1.0000
Ordinary Least Squares Estimation
******************************************************************************* Dependent variable is C1
22 observations used for estimation from 1999 to 2020
******************************************************************************* Regressor Coefficient Standard Error T-Ratio[Prob] BPQ1 .10792 .11094 1.6160[.123]
P/Q
QAWTP = 238 095 AWTP = 238 095
AWTP=273 333 (khi không phân loại)
0
Q1 147386.1 57225.9 2.5755[.019] INPT 1.28E+10 6.62E+09 1.9268[.069] ******************************************************************************* R-Squared .97787 F-statistic F( 2, 19) 419.7349[.000] R-Bar-Squared .97554 S.E. of Regression 3.69E+09
Residual Sum of Squares 2.59E+20 Mean of Dependent Variable 6.43E+10 S.D. of Dependent Variable 2.36E+10 Maximum of Log-likelihood -514.2570 DW-statistic .35287
*******************************************************************************
Diagnostic Tests
******************************************************************************* * Test Statistics * LM Version * F Version * ******************************************************************************* * * * *
* A:Serial Correlation *CHI-SQ( 1)= 11.8063[.001]*F( 1, 18)= 20.8476[.000]* * * * *
* B:Functional Form *CHI-SQ( 1)= 1.5227[.217]*F( 1, 18)= 1.3385[.262]* * * * *
* C:Normality *CHI-SQ( 2)= 1.5473[.461]* Not applicable * * * * *
* D:Heteroscedasticity *CHI-SQ( 1)= 9.3687[.002]*F( 1, 20)= 14.8341[.001]* *******************************************************************************
A:Lagrange multiplier test of residual serial correlation
B:Ramsey's RESET test using the square of the fitted values C:Based on a test of skewness and kurtosis of residuals
D:Based on the regression of squared residuals on squared fitted values
Bảng OLS cho ta kết quả ớc lợng hàm TC1:
TC1 = 0.10792 Q2 + 147386.1Q + 1.28E+10
2.2. Ước lợng hàm MC1: MC1 = TC1'
MC1 = 0.2Q + 147386.1