基于面板数据的中日电力行业规模收益比较分析

A Panel-Data Study The Returns to Scale for Electric Power Industry in China and Japan

文章利用具有面板数据模型形式的超越对数成本函数,研究中日两国电力企业的规模收益及经营效率问题。得出的主要结论是:中国和日本电力企业均呈现短期规模收益递增而长期收益递减的特征,与中国电力企业相比,日本企业具有能源利用效率较高,且企业间生产效率同质的特点。

Using a panel dataset and the translog cost function, this paper analyzes the returns to scale and the productivity of electric enterprises in China and Japan, and finds that the returns to scale increase in a short run, but decrease in a long run both in China and in Japan. However, Japanese enterprises have higher energy utilization efficiency and higher productivity.