Research On Investment Portfolio Of Personal Finance Product Based On Multi-attribute Decision Making Method

With the continuous increase of residents' income and the continuous improvement of people's living standards,personal finance investment has increasingly attracted people's attention.However,there exists a variety of existing personal finance products in the investment market.Different personal finance investors need to invest according to their own different investment conditions,which require investors to make multi-attribute decisions.In the decision-making process,the decision-makers often evaluate the investment products with linguistic values according to their experience,and the information is usually vague,so that the calculations will have a certain deviation from the precise values.In view of this situation,this paper studies the portfolio of personal financial products based on multi-attribute decision-making methods.The main research results are as follows:This article firstly carries out some theoretical studies of personal financial investment: research on the existing major financial products in the investment market,analysis of the status quo of personal financial investment behavior,and research on the influencing factors of decision-making behavior of personal financial investors.Secondly,aiming at the linguistic decision information,this paper proposes the linguistic lattice-valued preference relation,the linguistic lattice-valued 2-tuple model,and a consistency check method and adjustment algorithm for linguistic lattice-valued preference relation.Based on the above content,the linguistic analytic hierarchy process is proposed.Basing on the ambiguity of the attributes of each personal finance product,this paper proposes some intuitionistic fuzzy Markowitz portfolio models.These can reduce the shortage of information in the linguistic environment and fuzzy environment,so that we can obtain more reasonable and effective analysis results.Finally,the paper combines the above two parts and proposes a portfolio model of personal finance products based on multi-attribute decision-making method.We establish a subjective investment model based on investors' investment preferences,and establish an objective investment model based on the attributes of income and risk of the personal finance products.We combine the above two models and propose the portfolio model,which enable investors to obtain the maximum investment income under the minimum investment risk based on their investment preferences.