Research on the Operation of e-Commerce Enterprises Based on Blockchain Technology and Bilateral Platforms

Table 2

Parameter estimation of random boundary cost function.

	Tobacco		Automobile industry		Foodstuffs		Clothing		Electronic product
	Coefficient	Standard deviation	Coefficient	Standard deviation	Coefficient	Standard deviation	Coefficient	Standard deviation	Coefficient	Standard deviation
	219.64	88.164	-41.99	42.14	9.283	4.609	−5.766	4.142	17.868	7.445
	−30.55	14.27	6.604	7.010	0.499	0.999	−1.432	0.520	2.508	0.918
	121.79	42.04	1.134	14.095	−98.03	16.00	169.7	15.4	−78.884	16.416
	0.053	0.010	−7.064	15.711	17.53	2.868	−27.33	2.643	3.579	3.414
	−0.228	0.041	3.101	10.010	3.712	1.240	0.018	1.069	8.938	2.046
	0.102	0.032	−0.009	0.158	0.023	0.027	−0.065	0.001	0.096	0.002
	−0.111	0.045	−0.097	0.074	0.151	0.012	−0.115	0.018	0.055	0.043
	0.016	0.007	0.007	0.108	0.055	0.010	0.032	0.011	−0.035	0.013
CONS	64.35	317.34	87.979	199.128	−274	46	544	42.14	126.3	57.0
	0.118	0.037	0.148	0.1008	0.054	0.043	0.145	0.050	11.627	0.131
	0.424	0.007	0.784		0.971	0.002	0.947	0.015	0.933	0.001