Competition Equilibrium Analysis of China’s Luxury Car Market Based on Three-Dimensional Grey Lotka–Volterra Model

Table 4

Grey transformation error (MAPE).

Enterprise	X^(S) (k) (%)	X^(1) (k) (%)	X^(CG) (k) (%)	ARMA(1, 1) (%)
BMW	14.970	7.647	5.786	25.933
Benz	12.908	10.586	6.629	20.720
Audi	17.627	11.735	8.400	30.735