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Productivity changes in Taiwan's port industry incorporating environmental regulations on harbor water quality

机译：台湾港口行业生产力变化结合港口水质环境法规

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摘要

This paper evaluates the productivity changes in Taiwan's port industry for the period 2003-2007. Based on a 'three-year-window' data envelopment analysis method, Luenberger productivity indicators are employed to estimate the productivity changes that account for the success of attempts by port agents to control harbor water quality. This is one of the typical environmental concerns in port operations that prior studies on port productivity changes over time have not considered. The results show that the productivity of Taiwan's port industry has experienced growth over the study period, regardless of whether water quality has been considered or not. At a disaggregated level, however, if a port agent has succeeded in controlling water quality, but we do not consider it, the results will misclassify the agent by understating the port's productivity.
机译：本文评估了2003-2007年台湾港口产业的生产率变化。基于“三年窗口”数据包络分析方法，采用Luenberger生产率指标来估算生产率变化，这说明港口代理商控制港口水质的尝试取得了成功。这是港口运营中典型的环境问题之一，有关港口生产力随时间变化的先前研究尚未考虑。结果表明，无论是否考虑水质，台湾港口产业的生产率在研究期内均经历了增长。但是，从分类的角度来看，如果港口代理商成功地控制了水质，但我们没有考虑它，结果将通过低估港口的生产力来对代理商进行错误分类。

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