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首页> 外文期刊>Journal of Infrastructure Systems >Generalized Economic Modeling for Infrastructure and Capital Investment Projects
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Generalized Economic Modeling for Infrastructure and Capital Investment Projects

机译：基础设施和资本投资项目的通用经济模型

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Economic modeling and risk analysis are important processes for the appraisal of infrastructure and revenue-generating projects such as build-operate-transfer (BOT) projects. These processes have been commonly implemented using spreadsheets in which the analyst would build several models to analyze a project under varying conditions and risk assumptions. For better efficiencies in building economic structures and evaluation of projects, the current paper defines "classifications" of estimating and cash flow methods, and develops a generalized model. A classification represents a particular domain—construction, revenues, financing, operation and maintenance, or risk analysis, for example—and holds the estimating methods of that domain. The basic building block behind the model structure is a work package/stream that would have its own properties and estimating methods by direct selection from the relevant classification. By integrating the building blocks together a project economic structure is built and various performance measures are formulated. The model was implemented in a prototype software system called Evaluator. A BOT highway project is used to show an application of the concepts and the generalized model.
机译：经济建模和风险分析是评估基础架构和创收项目（例如，建设-运营-转让（BOT）项目）的重要过程。这些过程通常使用电子表格来实现，在该电子表格中，分析师将建立几种模型，以在变化的条件和风险假设下分析项目。为了更好地建立经济结构和评估项目，本论文定义了估计和现金流量方法的“分类”，并开发了一个通用模型。分类代表一个特定领域，例如建筑，收入，融资，运营和维护或风险分析，并具有该领域的估算方法。模型结构背后的基本构建块是工作包/工作流，通过直接从相关分类中进行选择，该工作包/工作流将具有自己的属性和估计方法。通过将各个组成部分整合在一起，可以构建项目经济结构并制定各种绩效指标。该模型是在名为Evaluator的原型软件系统中实现的。一个BOT高速公路项目用于展示概念和广义模型的应用。

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