A Study of the Strategic Alliance for EMS Industry: The Application of a Hybrid DEA and GM (1, 1) Approach

Table 9

Correlation of input and output data in 2011.

	Fixed assets	Cost of goods sold	Operating expenses	Revenues	Operating income	Retained earning
Fixed assets	1	0.9950823	0.9971701	0.9956782	0.9932562	0.7714851
Cost of goods sold	0.9950823	1	0.9916572	0.99997	0.9941673	0.7180692
Operating expenses	0.9971701	0.9916572	1	0.9925723	0.9901189	0.7850506
Revenues	0.9956782	0.99997	0.9925723	1	0.9946349	0.7221627
Operating income	0.9932562	0.9941673	0.9901189	0.9946349	1	0.7310947
Retained earning	0.7714851	0.7180692	0.7850506	0.7221627	0.7310947	1