|Huang & Wu (2021)|Simulation methods using<br>extended energy<br>conservation supply and<br>extended MAC curves are<br>applied to the cement<br>industry in Taiwan.|Using energy-efficient technologies, by 2025, the total<br>annual fuel savings could reach 1828 TJ, equivalent to 6%<br>of the energy used for cement production in 2018.|
|---|---|---|
|Zhang et al.(2021)|<br>A network Epsilon Based<br>Measure model and Tobit<br>regression are applied to<br>the Chinese construction<br>industry for 2000–2017.|In the construction industry, market-friendly<br>environmental regulations have a positive effect on green<br>technology innovation, while rigid and mandatory<br>environmental regulations (e.g., command and control)<br>hurt green technology innovation.|
|Wan et al. (2021)|<br>A generalized method of<br>moments regressions is<br>applied to Chinese energy<br>firms for 8 weeks before<br>and after the pandemic.|<br>Although the impact of COVID-19 on firms’ financial<br>performance is negative for both types of firms (clean<br>energy and fossil-fuel firms), the investor attention to the<br>disruptive effects of the pandemic had a significant and<br>positive effect on clean energy stocks’returns.|
|Haider & Bhat (2020)|<br>An econometric technique<br>is used in the paper<br>industry in 21 states in<br>India from 2001-2013.|<br>An increasing level of TFP is associated with the lower<br>level of EI or better EE. Better skills and capacity<br>utilization have a positive impact on EE performance of<br>the paper industry, while the heterogeneity within the<br>structure of the industry hurts EE performance.|
|Filippini et al. (2020)|The two-stage approach<br>of translog cost function<br>and DID approach are<br>applied to 5340 Chinee<br>iron & steel firms for<br>2003 and 2008|<br>The national EE program had a positive and statistically<br>significant effect on productivity in iron & steel firms. The<br>EE program increased annual productivity growth by 3.1%<br>points, with approximately equal contributions from<br>technical change and scale efficiency change.|
|Palčič & Prester<br>(2020)|.<br>A four-step OLS is<br>applied to survey data<br>collected from 232<br>Croatian and Slovenian<br>manufacturing firms<br>during 2018-2019.|Green innovation has an impact on firms’ competitive<br>advantage through their image, and not necessarily<br>through financial gains. Advanced manufacturing<br>technologies also contribute to both the firm's productivity<br>and green innovation.|
|Gong et al. (2020)|<br>An OLS method is<br>applied to high-pollution<br>firms (Shanghai and<br>Shenzhen) in China from<br>2009 to 2018.|The influence of rising labor costs on green technology<br>innovation has a threshold effect. The effects of the rise of<br>labor costs on the green technology innovation of high-<br>pollution firms illustrate an “inversely U-shaped” variation<br>trend with the increase of the degree of market monopoly.|
|Haas et al. (2020)|The least-cost<br>optimization model is<br>applied for the electricity<br>supply of copper mines in<br>Chile, Peru, China, the<br>USA, Austria, Indonesia,<br>and Mexico from 2020 to<br>2050|<br>At present, it is attractive for the copper mines to have a<br>solar generation of 25% to 50% of the yearly electricity<br>demand. In the future, the expected electricity costs range<br>from 60 to100 Euro per MWh for 2020 and from 30 to 55<br>Euro per MWh for 2050, with the lower bound in sunny<br>regions such as Chile and Peru.|
|Zuberi & Patel (2019)|.<br>EE cost curves are<br>applied to the Swiss<br>chemical and<br>pharmaceutical industry<br>from 2000 to 2012.|Electricity savings by improving motor systems is<br>estimated at 15% of the total electricity demand in 2016.<br>The EE potential also varies with different energy prices.|
|Unver & Kara (2019)|A regression analysis<br>using AMPL Software is<br>applied to a steel forging<br>facility in Turkey.|Correct regulation of the production process through<br>increased EE would result in 65% energy savings in the<br>unit production of a steel forging facility. Considering the<br>total annual production of the facility, 7,639 kWh of|

19