Abstract:Based on the data of 30 provinces and cities in China during 2009-2013, this article analyzes the green investment efficiency in China by using the three-stage DEA method, which can control the external environment variables and random factors. The research shows that: The three-stage DEA method can reflect the green investment efficiency in different areas objectively, while the traditional DEA method underestimates the green investment efficiency; on the whole, the green investment efficiency in our country is on the rise, but it has not yet reached the frontier level, which is mainly caused by the low efficiency of scale; in terms of the provinces and cities, the green investment efficiency with varying degrees have taken place and they are in the "double-high", "high-low"," low-high" and "double-low" types of range, which shows that there exists significant regional differences. |