A Mathematical Approach to Supply Complexity Management Efficiency Evaluation for Supply Chain

Table 4

Input and output data.

DMU	Factors
	Input data			Output data
	The number of goods ()	The number of providers ()	The number of plants ()	The total sales  ()
Samsung Electronics	29	159	13	208,938
SK Holdings	21	211	25	106,248
Hyundai Motor	31	90	13	84,771
POSCO	10	264	5	61,504
LG Electronics	33	100	17	57,038
KEPCO	7	76	241	54,252
KIA Motor	32	25	39	44,730
GS Caltex	24	15	50	38,235
Hanwha	57	224	17	35,574
KOGAS	6	20	31	35,411
S-Oil	9	3	11	27,122
Lotte Shopping	37	61	74	26,687

Unit: million dollar.