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高中数学科学建模的策略研究 被引量:1
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作者 郝英俊 《数学之友》 2024年第5期43-46,共4页
文章旨在研究高中数学科学建模策略,主要采用要素取向建模和行为取向建模的方法构建解题思维模型,在解题思维模型的基础上构建破模要素,并运用构建的思维模型解决高考真题,以期提升学生的综合思维水平,提高学生的学科关键能力.
关键词 科学建模 要素取向 行为取向 破模构建 高考真题
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Simulation Analysis of Macroeconomic Policy Orientations' Effects on the Industrial Economy——Based on Dynamic CGE Model
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作者 原磊 王秀丽 《China Economist》 2014年第2期100-112,共13页
There are three different orientations of the macroeconomic policies,namely,factor-expansion,prudent-continuation and structural-adjustment.The paper uses the dynamic CGE model to simulate the effects of the three dif... There are three different orientations of the macroeconomic policies,namely,factor-expansion,prudent-continuation and structural-adjustment.The paper uses the dynamic CGE model to simulate the effects of the three different orientations on the economy,and arrives at the following conclusions:while the factor-expansion policies can lead to growth of economic output,they also result in the further imbalance in the industrial structure and the "crowding-out effect" on the private investment.In addition,such growth is unsustainable in the long run;the growth of the industrial economy will decline rapidly to a lower level after reaching a certain high level.The prudent-continuation policies refer to the continuation of the current policies that sustain the current trends of the industrial economy,and such policies reduce the growth of the industrial economy to a lower level in the long run.The structural-adjustment policies reduce the economic output at the current stage;however,it can bring a gradual improvement of industrial structure and a balance of the supply and demand.In the long run,the optimized structure will improve the total factor productivity(TFP) and the production-possibility frontier,and thereby realize a longterm steady and rapid growth of the industrial economy.Four policy recommendations are proposed based on the simulation of the models,including taking the structural adjustment as the fundamental orientation of macroeconomic policies,lowering the "floor level" of economic growth with macro regulation,giving play to the fundamental role of market mechanism in structural adjustment and increasing the role of TFP in the growth of the industrial economy. 展开更多
关键词 dynamic CGE model factor-expansion policies prudent-continuationpolicies structural-adjustment policies
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