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基于CGE的人民币升值影响测算模型研究 总被引:1,自引:0,他引:1
将可计算一般均衡模型(CGE)应用到人民币升值影响测算中,建立了基于CGE的人民币升值影响测算模型,该模型包含18个生产部门和4个国外账户.基于2007年数据,应用该模型模拟了人民币以5-40%不同幅度的升值情景,在其他因素或条件不变的情况下,静态地测算了人民币升值对我国对外贸易、产业发展以及社会福利等三个方面的影响.结果表明:在其他因素或条件不变的情况下,人民币升值将直接对我国的对外贸易造成极大的负面影响,进一步对我国的产业发展与社会福利造成灾难性影响.特别地,当升值幅度大于20%时,人民币升值将对我国造成严重的经济危机与社会不稳定. 相似文献
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矩阵方程X=Q+A*(ImX-C)^-1A的Hermitian正定解 总被引:1,自引:0,他引:1
研究了一类来源于插值理论的非线性矩阵方程.利用Kronecker积的性质以及Banach空间单调有界序列收敛原理证明了此类方程正定解的存在唯一性.另外也给出了此方程正定解的范围. 相似文献
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广义近似空间的拓扑结构 总被引:1,自引:0,他引:1
在本文中,我们引入了论域X上的自反关系θ的传递化表示θs的概念,研究了拓扑空间(X,тθ)的基本性质,得到了一些有较大价值的结果,这不仅有助于理解粗糙集理论中的一些基本概念及其性质,而且对拓扑学本身都有理论和实际意义. 相似文献
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Project portfolio selection is one of the most important decision-making problems for most organizations in project management and engineering management. Usually project portfolio decisions are very complicated when project interactions in terms of multiple selection criteria and preference information of decision makers (DMs) in terms of the criteria importance are taken into consideration simultaneously. In order to solve this complex decision-making problem, a multi-criteria project portfolio selection problem considering project interactions in terms of multiple selection criteria and DMs?? preferences is first formulated. Then a genetic algorithm (GA)-based nonlinear integer programming (NIP) approach is used to solve the multi-criteria project portfolio selection problem. Finally, two illustrative examples are presented for demonstration and verification purposes. Experimental results obtained indicate that the GA-based NIP approach can be used as a feasible and effective solution to multi-criteria project portfolio selection problems. 相似文献
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In this paper, the singular value decompositions of anti-symmetric matrices and anti-bisymmetric matrices are presented, and a class of parameterized inverse singular value problem for anti-bisymmetric matrices is solved. Numerical examples which confirm our theory are presented. 相似文献