In the research object of love, the particularity of the research object lies in that every participant is a supplier and consumer of the market. According to the principle of scarcity of resources and the actual situation of universities, we assume that college girls are the supply side (S) and college boys are the demand side (D)[ Note: this study does not include abnormal teacher-student love and other categories, and is limited to ordinary male and female students with equal status in the market].

It is obvious here that S<d, according to the general actual situation of universities, has fewer female students than male students, and has a wider range of coverage. There are some exceptions, such as some foreign language colleges and normal colleges and professional women's colleges, but it does not affect the overall performance. In addition, both parties in love can be regarded as market subjects, coexisting with individual and other lovers. Due to the complexity of sociology and the limitation of personal learning ability, we can't simplify all the processes and participants clearly put forward simplified models for the time being, just like in general economic analysis, there is only one buyer and one seller.

Although our research belongs to economic analysis, it cannot be limited to economic analysis. College students have begun to set foot in society, and their choice of love is bound to be influenced by society. Therefore, these factors are regarded as weighted average index in the analysis.

Most college students still rely on family support economically and cannot achieve economic autonomy by self-sufficiency.

For some people, even the supplier assumed in this paper, love is not as effective as students' main business study. As a demander, love is a luxury.