Stock Investment Value Analysis Model Based on AHP and Gray Relational Degree

The article presents a method for stock selection from the view of investors who contemplate stocks of a new investment. The AHP (Analytic Hierarchy Process) and Grey Relational Analysis are used as two integral parts of the method. By distilling information from the Judgment matrix, the AHP-GRA method provides a framework to assist investors in analyzing various investment factors, evaluating stock investment alternatives, and making final investment selections. The primary principle of the method is to match decision-makers’ preferences with stock characteristics. The model requires that a number of potential stocks have been proposed. Alternatives are then evaluated and compared under various factors. It allows investor to incorporate personal preference and judgement in the solution process. An example of evaluating eight listed companies in the steel industry of China is showed to illustrate the solution process, the results of which are promising.Key words: Stock Investment Decision; Judgment Matrix; AHP; Grey Relational Analysis