Energy Efficiency: Indicator, Estimation, and a New Idea
Abstract
:1. Introduction
2. The Measurements of Energy Efficiency
2.1. Common Measurements
2.1.1. Energy-Consumption-Efficacy-Indicator
2.1.2. Energy-Economic-Efficiency-Estimate
2.2. A New Approach
3. Empirical Applications
3.1. Data Collections and Preliminary Summaries
3.2. Specifications and Estimation Results
3.3. Further Comparisons
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Countries/Variables | Annual Real GDP (Y) | Energy Input (E) | ||
---|---|---|---|---|
Australia | 759,560.49 | (175,281.54) | 9165.18 | (807.55) |
Austria | 309,220.85 | (56,641.41) | 1955.71 | (363.62) |
Belgium | 376,454.54 | (67,298.53) | 6873.83 | (658.86) |
Canada | 1,201,127.99 | (209,265.47) | 6890.83 | (371.59) |
Finland | 175,925.26 | (37,793.12) | 8936.78 | (1185.88) |
France | 2,053,349.04 | (354,517.80) | 7012.62 | (421.088) |
Germany | 2,912,371.78 | (422,470.86) | 5895.23 | (304.03) |
Greece | 276,505.40 | (51,521.54) | 4000.78 | (551.46) |
Ireland | 155,637.13 | (53,521.13) | 4872.44 | (588.88) |
Italy | 1,911,839.25 | (215,882.75) | 3397.29 | (457.09) |
Japan | 4,233,242.28 | (231,577.82) | 6910.15 | (379.08) |
Korea, Rep. | 1,211,316.10 | (343,360.55) | 6680.78 | (2334.85) |
Mexico | 1,391,473.43 | (352,353.99) | 1593.64 | (299.30) |
New Zealand | 114,982.99 | (23,353.74) | 2693.54 | (530.81) |
Portugal | 238,144.89 | (46,207.78) | 2450.33 | (481.05) |
Spain | 1,224,794.42 | (307,470.61) | 4074.65 | (694.89) |
Sweden | 335,742.70 | (62,579.79) | 7652.06 | (932.18) |
Switzerland | 338,275.48 | (74,689.45) | 3403.52 | (180.23) |
United Kingdom | 2,095,952.86 | (359,169.68) | 5347.64 | (545.83) |
United States | 13,581,642.44 | (2,235,112.17) | 11,674.81 | (562.09) |
Variables | Coefficient | Std. Err. | |
---|---|---|---|
α0 | 0.032 | (0.015) | *** |
α1 | 0.042 | (0.040) | |
α2 | 0.150 | (0.036) | *** |
α3 | 0.138 | (0.044) | *** |
α4 | 0.012 | (0.030) | |
α5 | 0.071 | (0.031) | *** |
α6 | 0.0061 | (0.0321) | |
α7 | 0.011 | (0.026) | |
α8 | −0.0077 | (0.0265) | |
α9 | 0.041 | (0.032) | |
α10 | 0.061 | (0.040) | |
α11 | −0.0014 | (0.0235) | |
α12 | 0.043 | (0.073) | |
α13 | 0.022 | (0.067) | |
α14 | 0.035 | (0.021) | * |
α15 | 0.040 | (0.021) | ** |
α16 | 0.072 | (0.034) | *** |
α17 | 0.017 | (0.028) | |
α18 | 0.013 | (0.038) | |
α19 | 0.080 | (0.027) | *** |
σ2 | 0.0320 | (0.0031) | *** |
κ | 0.803 | (0.018) | *** |
μ | −0.321 | (0.079) | ** |
η | 0.0280 | (0.0051) | *** |
Log-likelihood ratio | 460.0048 | ||
No. of observations | 20 | ||
No. of periods | 22 | ||
No. of samples | 440 |
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Chen, K.-H.; Cheng, J.-C.; Lee, J.-M.; Li, L.-Y.; Peng, S.-Y. Energy Efficiency: Indicator, Estimation, and a New Idea. Sustainability 2020, 12, 4944. https://doi.org/10.3390/su12124944
Chen K-H, Cheng J-C, Lee J-M, Li L-Y, Peng S-Y. Energy Efficiency: Indicator, Estimation, and a New Idea. Sustainability. 2020; 12(12):4944. https://doi.org/10.3390/su12124944
Chicago/Turabian StyleChen, Ku-Hsieh, Jen-Chi Cheng, Joe-Ming Lee, Liou-Yuan Li, and Sheng-Yu Peng. 2020. "Energy Efficiency: Indicator, Estimation, and a New Idea" Sustainability 12, no. 12: 4944. https://doi.org/10.3390/su12124944
APA StyleChen, K.-H., Cheng, J.-C., Lee, J.-M., Li, L.-Y., & Peng, S.-Y. (2020). Energy Efficiency: Indicator, Estimation, and a New Idea. Sustainability, 12(12), 4944. https://doi.org/10.3390/su12124944