Li, Ting; Zhang, Weiguo; Xu, Weijun - In: Economic Modelling 31 (2013) C, pp. 12-17
We propose a possibilistic portfolio model with VaR constraint and risk-free investment based on the possibilistic mean … proposed a theorem as the solution, and derive a crisp equivalent form of the possibilistic portfolio under constraints of VaR … Stock Exchange. A conclusion is reached that the investors are able to choose a portfolio more suitable to them under the …