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风险投资是高新科技项目的孵化器,与其他直接投资一样,成败的关键在于项目评估的准确程度。风险项目评估是微观经济和宏观经济理论在投资决策与管理领域的具体应用,评估方法合理化和科学化是投资决策的前提条件。本研究主要围绕风险投资项目财务评估方法的运用进行了回顾,并指出其不足,以期为后续研究提供参考。 相似文献
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简要回顾了国家自然科学基金委员会青年科学基金项目“发展我国风险投资业的法律保障问题研究”的立项背景,系统地介绍了该项目的研究框架与主要内容、取得的主要成果和提出的主要观点,扼要地阐述了研究的理论与实践意义,以及项目研究成果被引用的情况。 相似文献
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《管理评论》2012,(11):1
国家自然科学基金项目(70963002)项目负责人:张伟本项目负责人贵州大学管理学院张伟教授近年来主要从事产业经济学与环境经济学领域的研究工作,主要研究方向为产业的可持续发展。本项目主要内容包括:(1)从资源型产业链的形成与运行机制、资源型产业链升级的本质特征与外在表现、资源型产业升级与资源型产业链升级联系、资源型产业链升级与提高产业竞争力之间的关系等方面论述资源型产业链及其升级的基本理论。(2)分析资源型产业链的演进过程及其价值创造模式,以此为基础,提出影响资源型产业链升级的知识因素和资源型产业链知识创新的实现途径。(3)以瓮福和开磷两条磷化工产业链为案例,对贵州磷化工产业链的形成和运行机制、治理模式、技术链推动产业链升级、产业链演进过程、知识视角下产业链演进、产业链升级影响因素、产业链知识创新等方面进行研究。(4)从西部地区矿产资源的赋存情况、资源型 相似文献
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回顾了国家杰出青年基金资助项目"企业理论"(70525005)的研究情况,分析了该项目的研究背景及意义,介绍了该项目的主要研究内容与主要成果,列举了该项目的代表性论文和著作. 相似文献
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本研究指出了工程项目管理模式的分类是企业项目管理研究的前提,界定了工程项目管理的概念,研究给出了其分类原则,并提出了工程项目管理的系统模式,对企业项目管理实践具有指导意义。工程项目管理模式项目建设目标能否实现、与项目建成后的运行能否取得既定的社会效益和经济效益直接相关。因此,了解并选择恰当的工程项目管理模式意义重大。 相似文献
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社会网络嵌入对于绩效的影响并未得出一致结论,本研究在项目型组织的情境下,对其影响机制进行深入探讨。本研究利用我国2000—2015年电影产业数据,研究团队网络嵌入对于项目绩效的影响。研究表明,项目团队的网络中心度与项目绩效的关系呈倒U型曲线的关系。研究进一步发现,一个项目嵌入的两个不同的主体网络:专家网络(主创团队)与企业网络(制片公司和发行公司)存在替代效应,项目嵌入的企业网络中心度对于主效应的调节作用为负。项目本身属性(电影类型)的异质性有助于提高团队的网络中心度对项目绩效的提升。本文丰富了网络嵌入和项目型组织的文献,不仅对“嵌入性悖论”进行理论探讨,也从不同的行为主体出发研究双重网络嵌入对于绩效的影响,拓展了以往双重网络嵌入只聚焦于不同环境的分析框架,还通过对项目本身属性的探讨丰富了项目网络的理论边界,为项目型组织这一特殊的组织形式的绩效提升提供理论支撑与实践指导。 相似文献
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An Integrated Methodology for Assessment and Selection of the Project Risk Response Actions 总被引:1,自引:0,他引:1
In a systematic process of project risk management, after risk assessment is implemented, the risk analysts encounter the phase of assessment and selection of the project risk response actions (RA). As indicated by many researchers, there are less systematic and well-developed solutions in the area of risk response assessment and selection. The present article introduces a methodology including a modeling approach with the objective of selecting a set of RA that minimizes the undesirable deviation from achieving the project scope. The developed objective function comprises the three key success criteria of a project, namely, time, quality, and cost. Our model integrates overall project management into the project risk response planning (P2RP). Furthermore, the proposed model stresses on an equivalent importance for both "risk" and "response." We believe that applying the proposed model helps the project risk analyst in most effective and efficient manner dealing with his or her complicated RA selection problems. The application of the proposed model was implemented in projects in the construction industry in which it showed tremendous time, cost, and quality improvements. 相似文献
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本文针对考虑风险总关联的项目风险应对策略选择问题,首先结合MACBETH方法以及DEMATEL方法分析项目风险总关联;然后,在考虑项目管理者风险态度的基础上,以最大化项目管理者期望效用为目标构建考虑风险总关联的项目风险应对策略选择优化模型;最后,通过实际案例分析验证所提方法和模型的可行性与有效性,并比较分析了不同关联作用对风险应对决策的影响。结果表明:1)存在使项目管理者期望效用达到最大的最优项目风险应对预算;2)项目管理者的风险态度和对风险关联的关注程度对风险应对策略的选择和项目管理者的期望效用均有影响,在实际项目风险应对决策中均应予以考虑;3)在项目风险应对策略选择过程中,项目管理者不仅要考虑风险之间的直接关联还要重视风险之间的间接关联,而风险之间的积极关联则可以忽略。 相似文献
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Regina Thompson Paul H. Templet John K. Gamman Scott T. McCleary Margaret A. Reams 《Risk analysis》1994,14(5):857-861
The goal of Louisiana's 1990–1991 comparative risk project, also called the Louisiana Environmental Action Plan (LEAP), was to incorporate risk assessment into state environmental planning and policymaking. Scientists, government officials, and citizens were brought together to estimate the relative risk to human health, natural resources, and quality of life posed by 33 selected environmental issues. The issues were then ranked according to their relative estimated risks. It was hoped that this ranking of "comparative risks" would enable state policymakers to target the most important environmental problems and allocate scarce public resources more rationally and efficiently. As a result of the project, the governor issued an Executive Order forming a permanent Public Advisory Committee to continue this type of comparative risk assessment in Louisiana. 相似文献
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企业IT项目风险评估与规避策略研究 总被引:3,自引:0,他引:3
结合企业竞争性战略思想构建了一个企业IT项目风险评估与规避模型,建立了企业IT项目风险评估的指标体系,在对湖北省128家企业信息化项目与风险现状调查研究的基础上对风险因素进行了分类、测度和评估,得出了战略与风险的内在关系,并根据风险评估结果分析了企业战略执行的效果。最后,对高风险的企业IT项目提出了一套风险规避策略并进行应用。结果表明,计划与控制风险对各种企业IT项目执行的竞争性战略均有显著影响,采取不同战略的企业,影响其IT项目开发的风险各不相同,选择风险规避的策略与时机也存在差异。 相似文献
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Branden B. Johnson 《Risk analysis》2004,24(1):131-145
Despite many claims for and against the use of risk comparisons in risk communication, few empirical studies have explored their effect. Even fewer have examined the public's relative preferences among different kinds of risk comparisons. Two studies, published in this journal in 1990 and 2003, used seven measures of "acceptability" to examine public reaction to 14 examples of risk comparisons, as used by a hypothetical factory manager to explain risks of his ethylene oxide plant. This study examined the effect on preferences of scenarios involving low or high conflict between the factory manager and residents of the hypothetical town (as had the 2003 study), and inclusion of a claim that the comparison demonstrated the risks' acceptability. It also tested the Finucane et al. (2000) affect hypothesis that information emphasizing low risks-as in these risk comparisons-would raise benefits estimates without changing risk estimates. Using similar but revised scenarios, risk comparison examples (10 instead of 14), and evaluation measures, an opportunity sample of 303 New Jersey residents rated the comparisons, and the risks and benefits of the factory. On average, all comparisons received positive ratings on all evaluation measures in all conditions. Direct and indirect measures showed that the conflict manipulation worked; overall, No-Conflict and Conflict scenarios evoked scores that were not significantly different. The attachment to each risk comparison of a risk acceptability claim ("So our factory's risks should be acceptable to you.") did not worsen ratings relative to conditions lacking this claim. Readers who did or did not see this claim were equally likely to infer an attempt to persuade them to accept the risk from the comparison. As in the 2003 article, there was great individual variability in inferred rankings of the risk comparisons. However, exposure to the risk comparisons did not reduce risk estimates significantly (while raising benefit estimates), and Conflict-Claim respondents found the risk of the hypothetical factory less acceptable than No-Conflict respondents. Results suggest that neither risk comparisons nor risk acceptability claims are automatically anathema to audiences, but they may have tiny or unintended effects on audience judgments about risky situations. 相似文献
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Efforts to explain risk magnitude often rely on a "risk ladder" in which exposure levels and associated risk estimates are arrayed with low levels at the bottom and high ones at the top. Two experiments were conducted to test the hypothesis that perceived threat and intended mitigation vary with the location of the subject's assigned level on the risk ladder. Subjects were New Jersey homeowners, asked to assume a particular level of radon or asbestos contamination in their homes, to read a brochure explaining the risk, and then to complete a questionnaire. Both studies found that the difference between an assigned level one-quarter of the way up the ladder and the same level three-quarters of the way up the ladder significantly affected threat perception; the effect on mitigation intentions was significant in only one of the studies. Variations in assigned risk also affected threat perception and mitigation intentions. Variations in test magnitude (e.g., 15 fibers per liter vs. 450 fibers per cubic foot, roughly equivalent risks) had no effect, nor did the distinction between radon and asbestos affect the dependent variables. These findings suggest that communicators can design risk ladders to emphasize particular risk characteristics. 相似文献
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Risk characterization in a study population relies on cases of disease or death that are causally related to the exposure under study. The number of such cases, so-called "excess" cases, is not just an indicator of the impact of the risk factor in the study population, but also an important determinant of statistical power for assessing aspects of risk such as age-time trends and susceptible subgroups. In determining how large a population to study and/or how long to follow a study population to accumulate sufficient excess cases, it is necessary to predict future risk. In this study, focusing on models involving excess risk with possible effect modification, we describe a method for predicting the expected magnitude of numbers of excess cases and assess the uncertainty in those predictions. We do this by extending Bayesian APC models for rate projection to include exposure-related excess risk with possible effect modification by, e.g., age at exposure and attained age. The method is illustrated using the follow-up study of Japanese Atomic-Bomb Survivors, one of the primary bases for determining long-term health effects of radiation exposure and assessment of risk for radiation protection purposes. Using models selected by a predictive-performance measure obtained on test data reserved for cross-validation, we project excess counts due to radiation exposure and lifetime risk measures (risk of exposure-induced deaths (REID) and loss of life expectancy (LLE)) associated with cancer and noncancer disease deaths in the A-Bomb survivor cohort. 相似文献