The Risk Evaluation of Agricultural High-tech Investment Project

The agricultural high-teeh investment project （AHIP） is eharaeterized by technology-intensive, high risk and great profit. This article analyzes essential factors of the risks of the agricultural high-tech investment projects and the traditional risk evaluation method of agrtcultral projects. We think that the applications of the sensitivity, analysis and probability ore defer. Therefore; this article introduces a structural model to evaluate the risks of the agricultural high-tech investment projects and the system of the concrete evaluation indexes.

Impacts of the Financial Factors on Schedule Delays Risk of the International Contracting Projects: Evidence from Highway BOT Pro-jects in Vietnam

Vietnam has become a major market for construction enterprises from East Asian countries, especially from China, to participate in international project contracting, but serious schedule delays have important adverse effects on local government and foreign investment companies. Based on international engineering contracting mode of Vietnam highway BOT construction projects, we discussed the drive financial factors of schedule delays, using the methods of exploratory factor analysis and questionnaire survey, and evaluated the effects of various factors which are through regression analysis. The empirical results show that the five categories of financial factors, including the policy change, slow payment, financial mismanagement, financial market changes and lack of fiscal, have significant effects on schedule delay. Furtherly, we suggested that strengthening policy research and improving financial management ability should be used to reduce the influence of relevant financial factors on schedule delay, to improve the profitability of international businesses and the motivation of foreign enterprises to participate in Vietnam highway project.

Estimation of Potential Risk of Reservoir-Induced Earthquake for the Proposed Hydroelectric Project on the Yangtze Gorges

The proposed hydroelectric project on the Yangtze Gorges will be one of the largest power stations in the world.The problem of induced seismicity to the project has attracted much attention throughout China and the world.A research program has been carried out by the State Seismological Bureau of China.Based on the size of the reservoir and the lithology,geological structure,permeability,stress state,and previous seismicity in the region,the potential risk of reservoir-induced seismicity has been estimated.The results suggest that,after impoundment in the reservoir area,the possibility of induced seismicity cannot be completely ruled out.The areas with potential risk may be in some gorges composed of karstified carbonate and plutonic granite around the dam site.However,the magnitude is expected to be limited owing to the small dimension of the induced seismogenic faults.

Research on Subcontractor Risk of EPC Hydropower Project in Vietnam

Engineering, procurement and construction (EPC) contracts are becoming the most popular form to undertake construction works on large-scale hydropower projects.?The EPC general contractors in Vietnam have been coped with lots of difficulties during the construction phase of hydropower projects, resulting in significant schedule delays and cost overrun. One of the reasons is poor Subcontractors capacity.?In order to overcome above, the current study attempts?to research on identification and control Subcontractors risks of delay process of EPC hydropower project in Vietnam.?Through summarizing international research achievements of previous researches relating on EPC hydropower projects combining with analysis characteristics of developing construction of EPC hydropower projects in Vietnam, the current study pointed out all kinds of subcontractor risk of delay process of EPC hydropower project in Vietnam;?a questionnaire with 18 risk elements was designed and then delivered to experts in EPC hydropower project management area. Based on the risk model, 11 main risk elements were identified which can be categorized into 3 groups.?Lastly, the current study proposed suggestions to reduce or avoid risks as well as approach to control risks.?Furthermore, the findings of this study can be a good managerial reference for project management teams who are working in other countries that have similar economic and investment environment to Vietnam to get their EPC construction project completed on schedule, thus ensuring the benefits to the government, the investor, the contractor, and the parties involved.

Research on Quality Risk of EPC Hydropower Projects in Vietnam

Engineering, procurement and construction (EPC) contracts are on the way to become the most usual form of contracting applied by the private sector to undertake construction works on large scale Hydropower projects. If EPC contract management is not implemented and controlled properly. Quality is the first important factor for any contractors who involve in the hydropower project execution. The purpose of this study is to investigate and evaluate risks causing not good quality of EPC hydropower projects in Vietnam. In addition, the study also provided the recommendations for project practitioners to mitigate the impacts of those identified risks. The findings of this study can be a good managerial reference for project management teams who are working in other countries that have similar economic and investment environments to Vietnam to get their EPC construction project completed on quality, thus will ensuring the benefits to the government, the investors, the contractors, and the parties involved.

Research on Risk Evaluation Method for International Engineering Projects

Risk evaluation is one of the important elements of international engineering project management. The risk factors of international engineering projects are systematically analyzed from multiple dimension features of the projects. The muhilayer evaluation index system for the international engineering project risk assessment is proposed and constructed, which consists of 8 I-grade indexes and 24 II-grade indexes as policy risk, market risk, resource risk, and technical scheme risk, schedule risk, funding risk, personnel risk and management risk. And then the self-evaluation and benchmarking evaluation methods are applied to evaluate the international engineering project risk, and established the corresponding mathematical models. Finally, a project evaluation example is given to illustrate the applicability and effectiveness of the mathematical models.

Existing European Buildings and Cities： Economic Improvement and Evaluation of the Cost-Benefit Related to Lifecycle and Performance

In this study, the interdependency is presented between the characteristics of the buildings and the relative economic value, in order to plan economic policies and preconditions for improving the quality of the European buildings heritage through access, by an holistic approach, to the necessary f＇mancial resources. The economic value of a real estate asset is closely connected to the construction features and their performance over time （lifecycle）. Safer, more comfortable and productive buildings for inhabitants are at the same time more operationally efficient and economically convenient for the owners. Solidity characteristics and static resistance to earthquakes, eco-efficiency and other constructive qualities of the building will provide benefits in the long term, and they are directly related the LCC （life cycle cost） including specific construction and/or maintenance costs. Moreover, these characteristics have an impact on the ＂market value＂ and on the ＂mortgage lending value＂ of properties, as well as on the possibility of financing the purchase through access to more affordable mortgages, and to make really feasible conversions even in the absence of public financial resources. This study introduces a new approach for conversions involving whole buildings or city areas. This research identifies the economic sustainability of a project by combining principles and suitable methodologies, together with performance and other characteristics. These aspects constitute the essential prerequisite for obtaining mortgages from banks and/or financial resources from international investors.

Research on the risk-evaluation model of power transmission and transformation projects based on multilevel fuzzy-thought weighting for cloud-model improvement

The risk evaluation of power transmission and transformation projects is a complex and comprehensive evaluation process influenced by many factors and involves many indicators.In order to solve the uncertainty and fuzziness problems in the process of the multilevel fuzzy risk evaluation of power transmission and transformation projects,this paper introduces the cloud theory,which is specialized in the study of uncertainty problems and constructs the multilevel fuzzy comprehensive risk-evaluation model of power transmission and transformation projects based on the improved multilevel fuzzy-thought weighting based on the cloud model.Finally,the risk of the Beijing 220-kV Tangyu power transmission and transformation project is evaluated and the feasibility of the evaluation model is verified.The results of the evaluation and the evaluation layer cloud model are combined with MATLAB simulation to show that the risk level of the project is between large risk and general risk.

太原市垃圾处理PPP项目物有所值定量评价优化研究

以太原市垃圾处理PPP项目为研究对象,对物有所值定量评价方法进行优化。折现率方面,选择资本资产定价模型,计算体现行业特色的基础折现率,考虑通货膨胀因素,采用时间序列分析加以修正;风险分担方面,采用ANP——模糊综合评价法计算共担风险因素的政府和项目公司分担比例;风险量化方面,运用梯形模糊层次法确定风险损失权重,运用集值统计法确定风险发生概率。

基于改进FAHP的水利工程EPC总承包项目风险管理研究

结合水利工程EPC总承包项目的自身特点,建立改进FAHP的风险评判模型,最后,进行实证分析。结果表明,基于改进FAHP的水利工程EPC总承包项目风险评判模型具有一定的科学性和适用性,同时,研究结果对提高水利工程EPC总承包项目风险管理水平具有一定的参考意义。

煤矿智能化项目风险评价云模型及其应用

为解决煤矿智能化项目风险评价过程中,指标量化困难和评价系统难以兼顾随机性和模糊性的问题,采用云模型理论,对系统进行定量综合评价。首先,基于煤矿智能化系统建设项目进行多维度分析,建立项目风险多指标多维度的评价体系;然后,运用层次分析法(AHP)确定主观权重,CRITIC法确定客观权重,通过组合赋权方式确定指标权重矩阵;采用云模型实现指标定量与定性之间的转换,完成煤矿智能化项目的风险评价,并根据评价结果提出针对性的政策建议,最大程度降低项目现有风险;最后,以国家能源集团某煤矿为例,开展煤矿智能化项目建设和实施过程的风险评价,验证文中所提方法的科学性和有效性。结果表明:云模型可定量评价煤矿智能化项目风险,评价结果有助于化解现场风险隐患,提高风险管控能力,且具有一定的科学性和有效性。

水电工程定量综合风险评价方法优化研究及应用

针对目前水电工程定量综合风险评价方法存在的主观性缺陷问题,建立了定量综合风险评价方法计算的模型,通过构建模糊关系矩阵和风险互判矩阵,从而定量求得综合风险值及等级,结合建立的综合风险等级与安全评价结论之间的判定准则,得到工程整体风险等级及评价结论。以新疆若羌抽水蓄能电站工程安全预评价为例,对定量综合风险评价方法进行了验证,结果表明,评价结论符合工程实际,水电工程定量综合风险评价优化方法可应用于工程安全预评价和安全验收评价。

供给主体视角下红树林碳汇项目全生命周期风险测度与评价研究——以湛江红树林造林项目为例

发展海洋碳汇对于建设人与自然和谐共生的美好世界具有重要意义,红树林作为海洋碳汇的重要来源,拥有强大的固碳和储碳能力,具有较高的生态价值和经济价值,因此,加快开发红树林碳汇是应对气候变化的重要战略选择。本文基于三角模糊数和结构方程构建红树林碳汇项目风险测度模型,选取湛江红树林造林项目这一我国的代表性项目,采用净现值方法和肯定当量法对其进行实证对比分析,测度风险因素对项目价值及其投资决策的影响,从而助力红树林碳汇的高质量发展。结果表明:(1)红树林碳汇项目的开发存在一定的风险,各阶段风险按照影响由高到低,依次为核查备案阶段、决策阶段、施工阶段、运营维护阶段和设计阶段,核查备案阶段的技术风险、决策阶段的政策风险、施工阶段的市场风险、运营维护阶段的市场风险和设计阶段的人类行为风险是各阶段中影响较大的风险种类;(2)风险的发生会使红树林碳汇项目的价值降低,相比传统净现值法,肯定当量法更符合红树林碳汇项目的开发和运行情况。

Fuzzy Set-Based Risk Evaluation Model for Real Estate Projects

With the rapid development of residential real estate market, risk evaluation has been an important task in the process of project. This paper describes a risk evaluation method for residential real estate projects based on fuzzy set theory which uses linguistic variables and respective fuzzy numbers to evaluate the factors. The primary weights of factors and evaluation of alternatives are determined by applying linguistic variables and fuzzy numbers. The notion of Shapley value is used to determine the global value of each factor in accomplishing the overall objective of the risk evaluation process, so the primary weights are revised, thus the importance of factors can be reflected more precisely. A major advantage of the method is that it allows experts and engineers to express their opinions on project risk evaluation in linguistic variables rather than crisp values. An illustration is presented to demonstrate the application of the method in risk evaluation. The results are consistent with the results calculated by conventional risk evaluation method. The research demonstrates that the method is objective and accurate, and is of an application value in the risk evaluation for residential real estate project.

基于风险规避视角的PPP项目特许权抵押值评估——以凌海市城区净水厂项目为例

基于金融机构存在风险规避特征,本文研究PPP项目特许权抵押值评估问题。首先从项目投融资角度,剖析PPP项目特许权抵押运作机理,引出金融机构风险规避度与特许权抵押率的定量关系。然后在此基础上,通过构建项目特许权抵押风险评估模型给出风险规避度的测算方法,并运用收益贴现法给出特许权价值估算方法,进而构建出PPP项目特许权抵押值评估模型。最后将所构建模型应用于凌海净水厂项目的特许权抵押值评估,进行案例研究。结果表明,基于风险规避度的PPP项目特许权抵押值评估模型不仅为金融机构的贷款决策提供了一种实务操作方法,而且从敏感性机理上揭示了金融机构风险规避度存在影响项目债务融资可行性的变化区间,对提高PPP项目投资决策水平具有重要的实际意义。

基于模糊层次分析法的高校基建项目风险综合评价

随着高等教育大众化时代的到来,高校基础建设项目增多,基建项目管理风险相应增大。文中首先对高校基建项目风险进行定性分析,构建了风险评价体系;随后运用层次分析法进行定量分析,确定各评价指标的权重,并采用模糊综合评价法对风险进行评估;最后将AHP-模糊综合评价法应用到具体实例中,验证了该模型的可行性和合理性。

Detection of schedule delay risk of empirical construction projects

In Ethiopian construction projects, schedule delay risk is a predominant issue because it is not properly addressed. Although several studies have been focused on the various effects of risk in construction projects, limited efforts have been made to investigate the typical and the overall schedule delay risk. In this study, our aim is to detect the typical and overall schedule delay risk throughout the construction project lifecycle, which consists of the pre-construction, construction, and post-construction stages, and compare the stages with each other. Common criteria, sub-criteria, and attributes were developed for all alternatives for the purpose of making a risk decision. The methodology that was followed integrated the multiplecriteria decision-making(MCDM) model of fuzzy analytic hierarchy process comprehensive evaluation(FAHPCE)and the relative important index(RII). Data were collected from 77 participants, who were selected through purposive sampling from different contracting organizations in Ethiopian construction projects by means of questionnaires that were distributed to experienced experts. The findings showed that there is a typical delay risk either in the type or in the level of the different construction activities.Consequently, the most influenced alternative is the construction stage because of the high-risk responsibility,resource, and contract condition related criteria. The postconstruction stage was the second most influenced stage because of the high-risk responsibility-related criteria. The pre-constructed stage was the least influenced stage that consist high-risk criteria of responsibility, resource, and contract condition related. These differences provided noteworthy information about risk mitigation in construction projects by identifying the exact risk level on specific activity to make appropriate decision.

建筑改造工程施工延期风险评价指标分析

改造工程项目在现场作业中投资大,施工时间长,受自然因素的影响,因此在项目施工前期必须做好工程延期风险评价,从而确保工期的准确。采用文献研究法对改造工程项目研究现状进行分析,得出包含管理、安全、环境、质量4大因素的评价指标及11个不同类型的二级延期风险评价指标,采用层次分析法建立了改造工程延期风险评价模型。以A小区改造项目为例,对其进行风险评价。结果表明该项目在技术措施、安全措施风险及人员管理方面有着很大的风险,极可能在施工过程中影响工期,需对其进行针对性改进。

大型工程项目风险管理与应对策略

为保障大型工程项目建设的安全性,本文研究了大型工程项目风险管理与应对策略。为此,本文以风险管理流程体系为核心构建大型工程项目风险管理体系架构,分析大型工程项目开展过程中存在的各种风险因素;以风险因素分析结果为大型工程项目风险评价指标,采用模糊层次分析法对大型工程项目风险进行评价;基于风险评价结果,从优化全面风险管理环境和强化全方位的全面风险管理理念两方面提出风险应对策略,结合风险监控形成一个全面、动态、完善、循环的风险管理流程。实验结果显示:通过该研究能够显著降低大型工程项目风险,保障大型工程项目建设安全性。

企业项目评估视角下选煤厂工程建设项目可行性研究报告的问题诊断与优化建议

为了提升选煤厂工程建设项目可行性研究报告编写的质量,确保企业在投资决策阶段能够获得科学、准确的评估依据,从而增强决策的成功率并降低因论证不充分而带来的投资风险,研究从企业项目评估的视角出发,采用系统分析与案例研究相结合的方法,通过对多个选煤厂项目的可行性研究报告在煤质分析、可选性试验资料选取、产品方案确定、选煤方法对比、成本和收益预测、节能减排指标评价等方面存在的问题进行分析和诊断,并针对存在的问题提出相应的优化策略建议。通过实施这些优化措施,可以有效提升可行性研究报告的准确性和实用性,为企业投资决策提供更为科学的依据。该研究不仅为选煤厂工程建设项目可行性研究报告编制质量的提高提供了参考和借鉴,也为其他工程建设项目的风险评估和管理提供了有益的参考。