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This paper gives a new portfolio optimization model based on dual expected utility. In the model, considering that the transaction number is integer and short sale is not allowed in China's Stock Market at present, we introduce the constraints of minimal transaction unit and upper bound of investing in each asset in the friction market and we regard the utility risk as the risk under the non-conventional...
To improve returned logistics management performance, an appropriate design approach for returned logistics network structures and operation schedules are proposed. Synthetically taking into account the location problem and inventory relationships of inter-related nodes, a nonlinear integer programming (NLIP) model is developed. With the help of the model, the following items can be computed, such...
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