Table 4.

Cross-correlation exponents considering the sales in units and GDP per capita.

Method/time-series	Region I	Region II	Region III
DFA${}_1$/GDP	0.23 ± 0.01	0.049 ± 0.003	0.58 ± 0.02
DFA${}_1$/sales	0.300 ± 0.007	0.154 ± 0.005	0.49 ± 0.02
DFA${}_0$/GDP	0.292 ± 0.007	0.80 ± 0.01	0.999 ± 0.003
DFA${}_0$/sales	0.183 ± 0.009	0.308 ± 0.006	0.484 ± 0.004
DCCA${}_1$	0.292 ± 0.008	0.111 ± 0.004	0.49 ± 0.02
DCCA${}_0$	0.223 ± 0.009	0.556 ± 0.009	0.798 ± 0.002