Research on Sustainable Development of Resource-Based Cities Based on the DEA Approach: A Case Study of Jiaozuo, China

Table 11

Analysis on the redundant input and insufficient output.

Year	Redundant input		Insufficient output
	2005	−0.021	−0.013	0.439	1.786	0.685
2007	−0.236	−0.043	5.042	1.832	0.738
2008	−0.076	−0.013	4.488	1.494	0
2009	−0.153	−0.019	2.659	2.004	0
2011	−1.501	−0.116	0	3.94	0.866