In the era of digital intelligence economy,privacy protection has become an important dimension for enterprises to gain competitive advantage.This paper constructs a multi-dimensional differentiated competition model of duopoly enterprises under the dominant position of...MORE In the era of digital intelligence economy,privacy protection has become an important dimension for enterprises to gain competitive advantage.This paper constructs a multi-dimensional differentiated competition model of duopoly enterprises under the dominant position of brand preference or privacy preference,and examines...