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Dependent-Chance Programming Models for Capital Budgeting in Fuzzy Environments 被引量:2
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作者 梁锐 高金伍 《Tsinghua Science and Technology》 SCIE EI CAS 2008年第1期117-120,共4页
Capital budgeting is concerned with maximizing the total net profit subject to budget constraints by selecting an appropriate combination of projects. This paper presents chance maximizing models for capital budgeting... Capital budgeting is concerned with maximizing the total net profit subject to budget constraints by selecting an appropriate combination of projects. This paper presents chance maximizing models for capital budgeting with fuzzy input data and multiple conflicting objectives. When the decision maker sets a prospective profit level and wants to maximize the chances of the total profit achieving the prospective profit level, a fuzzy dependent-chance programming model, a fuzzy multi-objective dependent-chance programming model, and a fuzzy goal dependent-chance programming model are used to formulate the fuzzy capital budgeting problem. A fuzzy simulation based genetic algorithm is used to solve these models. Numerical examples are provided to illustrate the effectiveness of the simulation-based genetic algorithm and the potential applications of these models. 展开更多
关键词 fuzzy variable capital budgeting dependent-chance programming genetic algorithm
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An improved portfolio optimization model for oil and gas investment selection 被引量:1
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作者 Xue Qing Wang Zhen +1 位作者 Liu Sijing Zhao Dong 《Petroleum Science》 SCIE CAS CSCD 2014年第1期181-188,共8页
For oil company decision-makers,the principal concern is how to allocate their limited resources into the most valuable opportunities.Recently a new management philosophy,"Beyond NPV",has received more and more inte... For oil company decision-makers,the principal concern is how to allocate their limited resources into the most valuable opportunities.Recently a new management philosophy,"Beyond NPV",has received more and more international attention.Economists and senior executives are seeking effective alternative analysis approaches for traditional technical and economic evaluation methods.The improved portfolio optimization model presented in this article represents an applicable technique beyond NPV for doing capital budgeting.In this proposed model,not only can oil company executives achieve trade-offs between returns and risks to their risk tolerance,but they can also employ an "operational premium" to distinguish their ability to improve the performance of the underlying projects.A simulation study based on 19 overseas upstream assets owned by a large oil company in China is conducted to compare optimized utility with non-optimized utility.The simulation results show that the petroleum optimization model including "operational premium" is more in line with the rational investors' demand. 展开更多
关键词 Portfolio optimization capital budgeting operational premium utility theory risk tolerance
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