I would like to ask which are the (mathematical) economics journals that publish papers about economic theory and that focus mainly on the mathematical aspects of it. Let me be more precise. If I have a refinement of a representation theorem for preference relation axiomatization, which journals are most suitable to get the paper accepted?
Of course, I mean a significant generalization of the theorem and, of course, I am not thinking about Econometrica or Journal of Economic Theory since I understand my question is about a refinement of a theorem, and not a completely original economic issue. Nevertheless, I think my generalization fills an important gap in the subject and I would like to ask for a list of economics journals (maybe listed by ranking of importance) that may be the right target for my result. Thank you in advance!