Table 4.

Regression models of the relationship between web-retail and economic development in Russian Federation (with the gradual introduction of dummy variables)

Factor	Model 1	Model 2	Model 3	Model 4
Intercept	36.49 ***	36.29 ***	34.82 ***	34.15 ***
	(0.54)	(0.53)	(0.55)	(0.57)
SWS	3.57 ***	3.06 ***	2.05 ***	2.51 ***
	(0.58)	(0.59)	(0.58)	(0.59)
SO	6.61 ***	6.41 ***	5.39 ***	5.68 ***
	(0.56)	(0.55)	(0.55)	(0.54)
SP	4.15 ***	4.02 ***	4.13 ***	3.25 ***
	(0.58)	(0.57)	(0.54)	(0.58)
d1		15.04 **	20.96 ***	21.27 ***
		(4.94)	(4.76)	(4.68)
d2			10.71 ***	10.36 ***
			(1.63)	(1.61)
d3				6.56 ***
				(1.75)
N	370	370	370	370
R2	0.70	0.71	0.76	0.78

Note: all continuous predictors are mean-centered and scaled by 1 standard deviation. *** p < 0.001; ** p < 0.01; * p < 0.05

Source: Formed by the authors