农业高科技企业成长机会价值量化模型构建及其应用

农业高科技企业成长机会包括农业高新技术研发和市场推广,是一个系列递进买方期权。其价值是农业高科技企业价值的核心部分。本文利用二项式分布模型构建了时间和概率因素下成长机会的期权形式价值量化模型,总结了农业高科技企业的期权性质及其特点,并以此为基础,进一步讨论了成长机会价值量化模型在农业高科技企业价值评估中的应用。     

Valuation of childhood risk reduction: the importance of age, risk preferences, and perspective.

This article explores two problems analysts face in determining how to estimate values for children's health and safety risk reductions. The first addresses the question: Do willingness‐to‐pay estimates for health risk changes differ across children and adults and, if so, how? To answer this question, the article first examines the potential effects of age and risk preferences on willingness to pay. A summary of the literature reporting empirical evidence of differences between willingness to pay for adult health and safety risk reductions and willingness to pay for health and safety risk reductions in children is also provided. The second dimension of the problem is a more fundamental issue: Whose perspective is relevant when valuing children's health effects—society's, children's, adults‐as‐children, or parents'? Each perspective is considered, followed ultimately by the conclusion that adopting a parental perspective through an intrahousehold allocation model seems closest to meeting the needs of the estimation problem at hand. A policy example in which the choice of perspective affects the outcome of a regulatory benefit‐cost analysis rounds out the article and emphasizes the importance of perspective.     

基于利润的股票定价模型研究

股息现值模型 (Gordon model)、税后利润再投资有限增长模型 (Gordon and Gordon m odel)以及简化后的税后利润再投资有限增长模型 (Morris m odel)都无法为亏损公司的股票定价。根据弱有效市场假设 ,提出基于净利润的股票定价模型。该模型允许公司未来几年把全部或部分利润投资于盈利项目。利用该模型投资者可以计算不同类型上市公司股票的投资价值     

资产收益估价思想的历史考察

收益还原估价法是现代资产估价理论三大基本估价方法之一,古典经济学家配第提出了资产收益估价的思想萌芽,新古典经济学家马歇尔发展了资产收益估价思想,提出了系统的资产收益估价理论与基本模型,为资产收益估价理论的形成做出了重要贡献,他们的价值思想和资产估价思想至今仍为经济界和资产评估界广为使用,并形成了现代资产收益估价体系的理论基石,对现代资产估价理论产生了重大影响。     

生产者货币计价决定因素的实证研究

利用12个发达国家和发展中国家的非平衡面板样本数据,对微观、宏观和其他因素对生产者货币计价(PCP)的影响进行实证研究,指出经济规模、市场份额、金融市场的发达程度、币值的对内稳定性和产品差异化程度是最主要的影响因素,而出口商的谈判能力、币值的对外稳定性等因素也对PCP的选择有一定影响。根据实证检验结果,对人民币作为贸易计价货币的条件进行评估,发现其优势在于我国的经济规模、出口商的市场份额及其谈判能力以及人民币汇率的相对稳定性; 劣势在于相对落后的金融市场、不可预期性较大的通货膨胀水平以及产品的差异化程度。     

Contribution analysis to analyze the effects of the health impact assessment at the local level: A case of urban revitalization

The health impact assessment (HIA) is a tool used to estimate the potential impact on health of non-health-related proposals prior to implementation. While it is increasingly used in Quebec, Canada, studies have not analyzed its medium-term impacts and potential long-term impacts. We conducted a contribution analysis using in-depth interviews with key stakeholders, as well as documents, observation and images related to HIA in order to analyze its impacts on the revitalization of road infrastructure, parks and green spaces, and residential housing. Our analysis not only reflects on the decision-making process through the adoption and implementation of HIA recommendations, but also on the link between actions implemented in the field and health outcomes.     

论传统定额计价如何向工程量清单计价转变

本文从价格理论、计价模式、招投标效果等方面与传统定额计价的区别作了论述,以更好的促进工程量清单计价模式的推广。     

概率算子“可能”的核心情态语义及其概率赋值手段

"可能"是一个概率模态算子,其核心情态语义特征为[+概率可能]。按照概率模态"概率值的连续标度法","可能"的赋值范围为"0相似文献   

对中国消费者非转基因菜油支付意愿的研究

有关中国消费者关于转基因食品接受度的资料非常有限.本文则首次尝试对中国消费者关于非转基因(non-GM)食用油的支付意愿(WTP)问题进行评估.通过对北京的671个消费者进行调查采访,运用假设评价方法(contingent valuation),可推导出消费者对非转基因菜油的支付意愿.为避免调查者无响应引起的偏差,运用了双变量概率选择模式对调查数据进行分析.研究结果表明,消费者对非转基因菜油的支付意愿受到了许多因素的影响,比如价格、风险意识、受教育程度和知识水平等等.计算所得的WTP显示,平均而言,被调查者愿意支付33%的额外费用来消费非转基因菜油.这一结果表明,中国消费者对转基因油持有相当怀疑的态度.