Investment decision using D numbers

Investment decision is a complex problem influenced by many factors such as investment value, cost, sales, etc. One critical issue of investment decision is the representation of uncertain information. Many theories can deal with uncertain information. However, more or less deficiencies of these methods are revealed. Recently, D numbers, a new method to represent uncertain and incomplete information, has been widely applied in dealing with uncertain information. In this paper, D numbers is applied to investment decision problem. Investment value, cost, sales, proportion of national income and the extent of environmental pollution are represented by D numbers and the algorithm of maximizing deviations is used to calculate the weight of different factors. An illustrative case is given to show the effectiveness of the new method.