Market Structure, International Competitiveness, and Price Formation of Hainan’s Fruit Exports

Table 6

Descriptive analysis and unit root test of variables. ER: exchange rate; CP: competition price.

Variable	Mean	SD	Minimum	Maximum	Result of unit root test (ADF) on log variables
Price	24	3.89	1.02	8.46	Stationary
Cost	0.69	0.22	0.37	1.64	Stationary
Quality	0	0.83	−1.72	2.54	Stationary
ER	3.04	0.53	0.73	5.36	Stationary
CP	0.49	0.28	0.23	1.97	Stationary