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

Table 10

Correlation of input and output data in 2012.

	Fixed assets	Cost of goods sold	Operating expenses	Revenues	Operating income	Retained earning
Fixed assets	1	0.999063	0.9965849	0.9991703	0.9979143	0.8264087
Cost of goods sold	0.999063	1	0.9956829	0.9999824	0.9978927	0.8122929
Operating expenses	0.9965849	0.9956829	1	0.9961923	0.9957381	0.8506753
Revenues	0.9991703	0.9999824	0.9961923	1	0.9981097	0.8150393
Operating income	0.9979143	0.9978927	0.9957381	0.9981097	1	0.8284635
Retained earning	0.8264087	0.8122929	0.8506753	0.8150393	0.8284635	1