排序方式: 共有65条查询结果,搜索用时 171 毫秒
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基于IPAT模型的长株潭城市群经济增长与能源消耗的实证研究 总被引:5,自引:0,他引:5
基于IPAT方程,通过设定不同的情景来分析长株潭城市群2008年-2013年期间经济增长与资源消耗之间的定量关系.实证结果表明:GDP年增长率为12%,单位GDP能耗年下降4%这种组合是合理和适当的。符合长株潭城市群能源消耗的实际.以此为目标,能平稳推进长株潭城市群资源节约型社会建设进程,保持国民经济快速、健康、稳定的发展. 相似文献
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Utility based pricing and exercising of real options under geometric mean reversion and risk aversion toward idiosyncratic risk 总被引:3,自引:0,他引:3
We study the classical real option problem in which an agent faces the decision if and when to invest optimally into a project.
The investment is assumed to be irreversible. This problem has been studied by Myers and Majd (Adv Futures Options Res 4:1–21,
1990) for the case of a complete market, in which the risk can be perfectly hedged with an appropriate spanning asset, by
McDonald and Siegel (Q J Econ, 101:707–727, 1986), who include the incomplete case but assume that the agent is risk neutral
toward idiosyncratic risk, and later by Henderson (Valuing the option to invest in an incomplete market, , 2006) who studies the incomplete case with risk aversion toward idiosyncratic risk under the assumption that the project
value follows a geometric Brownian motion. We take up Henderson’s utility based approach but assume as suggested by Dixit
and Pindyck (Investment under uncertainty, Princeton University Press, Princeton, 1994) as well as others, that the project
value follows a geometric mean reverting process. The mean reverting structure of the project value process makes our model
richer and economically more meaningful. By using techniques from optimal control theory we derive analytic expressions for
the value and the optimal exercise time of the option to invest.
相似文献
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燃油税改革的动态一般均衡分析 总被引:2,自引:0,他引:2
建立了燃油税的动态可计算一般均衡模型,设计金融海啸后的预测模拟场景,综合分析和评价燃油税的征税效果。研究结果表明,燃油税改革实现了“费改税”,但由于纳税群体的扩大,尽管产生了显著的节能减排效果,但不利于经济增长。相比其他产业,交通运输部门,特别是航空运输部门受损较小。长期而言,劳动密集型行业将受损有所减缓。但资本密集型行业将受损更为严重。 相似文献
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基于需求和生产成本偏差的Cournot竞争供应链协调 总被引:1,自引:0,他引:1
分析一个供应商和两个Cournot竞争零售商组成的供应链系统的协调问题.首先证明收益共享合约在稳定条件下能实现该供应链协调;当突发事件导致零售商面临的需求规模和供应商的生产成本同时与其预测值发生偏差时,为使供应链收益最大,提出了调整生产计划和零售价格的协调策略,进一步证明了改进的收益共享合约可协调需求和成本偏差的分权供应链;最后进行了数值实验. 相似文献
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A hybrid differential evolution algorithm to vehicle routing problem with fuzzy demands 总被引:1,自引:0,他引:1
In this paper, the vehicle routing problem with fuzzy demands (VRPFD) is considered, and a fuzzy chance constrained program model is designed, based on fuzzy credibility theory. Then stochastic simulation and differential evolution algorithm are integrated to design a hybrid intelligent algorithm to solve the fuzzy chance constrained program model. Moreover, the influence of the dispatcher preference index on the final objective of the problem is discussed using stochastic simulation, and the best value of the dispatcher preference index is obtained. 相似文献
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基于动态CGE的铁矿砂价格冲击经济效应研究 总被引:1,自引:0,他引:1
利用湖南大学—莫纳什大学合作开发的中国动态可计算一般均衡模型—MCHUGE模型,对国际铁矿砂价格冲击的宏观经济影响进行动态的量化分析。模拟结果显示:澳大利亚农业研究署所预测的未来铁矿砂价格年均增长率对中国经济的影响较小,相比于基线预测值,短期里通过增加社会岗位,长期里通过提高资本存量,从而减少了中国经济所受影响的幅度。 相似文献
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