A Two-Stage DEA to Analyze the Effect of Entrance Deregulation on Iranian Insurers: A Robust Approach

Table 4

CRS relative efficiency observed in Iranian insurance companies in percent (%): 2003–2010; DEA with certain and uncertain outputs (traditional DEA versus robust DEA).

DMUs	Year
	2003		2004		2005		2006		2007		2008		2009		2010
	Certain; outputs	Uncertain; outputs	Certain; outputs	Uncertain; outputs	Certain; outputs	Uncertain; outputs	Certain; outputs	Uncertain; outputs	Certain; outputs	Uncertain; outputs	Certain; outputs	Uncertain; outputs	Certain; outputs	Uncertain; outputs	Certain; outputs	Uncertain; outputs
DMU1^a	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
DMU2^a	100	100	100	100	100	100	100	100	100	100	100	100	100	100	71	67
DMU3^a	100	100	100	100	100	100	68	68	100	100	100	100	100	100	100	100
DMU4^a	46	46	51	45	72	61	56	42	64	64	71	71	74	73	60	53
DMU5	41	41	69	33	26	14	27	20	56	51	35	34	70	64	97	92
DMU6	100	88	71	58	100	99	79	79	75	74	79	78	100	100	100	100
DMU7	70	60	67	61	57	57	66	64	98	98	100	90	87	77	69	68
DMU8	86	71	100	100	86	81	100	100	100	53	100	58	100	100	100	100
DMU9	32	31	49	42	55	55	51	26	51	28	54	54	53	47	44	29
DMU10	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
DMU11	100	94	100	78	100	44	100	62	65	31	52	38	44	33	52	21
DMU12	100	100	100	100	100	71	100	33	100	97	100	74	100	100	100	100
DMU13	100	100	63	56	54	50	79	78	95	95	100	100	100	100	100	100
DMU14			92	46	21	6	68	57	100	100	100	100	100	100	100	100
DMU15					100	100	100	100	100	100	100	88	100	92	100	76
DMU16					34	22	73	57	97	96	100	100	100	64	74	69
DMU17					100	55	61	53	43	34	58	52	72	49	51	35
DMU18							77	52	69	40	52	24	64	30	69	33
DMU19											62	48	64	46	53	30
DMU20													100	100	100	36
Average	83	79	83	73	77	65	78	66	84	76	82	74	86	79	82	70
Standard deviation	26	26	20	27	29	32	21	27	21	29	23	26	19	26	21	30

^aState-owned insurers.