Category-specific differences. We estimated the model with (1) game apps and (2) other apps separately. We find significant differences in price sensitivities for games (-.283) versus other app categories (-.182) but do not find any significant difference for the app popularity effects of ratings volume and valence variables. With regard to the moderators, the effect of power distance on ratings volume sensitivity is not significant for games, while the effect of uncertainty avoidance on ratings volume sensitivity is not significant for nongame apps.