. 2024 Sep 15;14(9):823. doi: 10.3390/bs14090823

Table 2.

Primary variables.

Variables	Descriptions
Dependent variable
$s a l e s$	Sales ranking of focal product (range: 0+)
Independent variables
$s e n t i m e n t_f o c a l$	Mean sentiment score of focal product’s online reviews (range: 0–1)
$s e n t i m e n t_c o m p$	Mean sentiment score of competitive products’ online reviews (range: 0–1)
$r a t i n g_f o c a l$	Mean rating of focal product (range: 0–5)
$r a t i n g_c o m p$	Mean rating of competitive products (range: 0–5)
$O R P_c o m p$	Mean number of photos from competitive products’ online reviews (range: 0+)
$P A_c o m p$	Mean product polarity attribute difference from competitive products’ online reviews (range: 0–5)
$O R U_c o m p$	Mean number of useful votes from competitive products’ online reviews (range: 0+)
Control variables
$v o l u m e$	Mean volume of focal product’s online reviews (range: 0+)
$p r o m o t i o n$	Whether a product is under promotion (unit: 0, 1)
$b r a n d$	Mean number of brand votes of focal product (range: 0+)