Measuring the electricity-generated efficiency and pollutant abatement of Taiwan incinerators by the stochastic frontier analysis

• Main Authors: Chia-Jung Lee, 李嘉容
• Other Authors: Jin-long Liu
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/34575545881780230143

碩士 === 國立中央大學 === 產業經濟研究所 === 97 === Due to the limitation of plant-life and the rising of environmental concern, the incinerator’s technical efficiency and pollutants abatement have become an essential issue of Taiwan. The purpose of this research is to estimate the electricity-generated efficiency of incinerators by the stochastic frontier analysis. Our research considers the individual incinerator’s efforts in increasing the production of electricity (good output) as well as the reducing of pollution emissions (bad output) under the given resources and technology constraints. The directional output distance function was used and the shadow prices of pollutants and elasticity of substitution between good and bad outputs were estimated. Our results indicate that the average value of electricity-generated inefficiency is about 0.228, which implies that Taiwan incinerators could increase production of electricity by 22.8% and decrease emissions of pollution by 22.8% simultaneously. Furthermore, we found that incinerators located in northern part of Taiwan show higher values of efficiency than those in the middle and southern part of Taiwan. However, the estimates of shadow prices of pollutants obtained by the single bad output analysis are found more realistic than those obtained from the multiple bad output model. The shadow price of Carbon monoxide is found to have a decreasing marginal cost of pollution abatement with respect to pollution reduction.