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。     

论创造性思维的时效性

创造性思维的时效是指创造性思维在一定的时间内所取得的思维成果。在追求创造性思维科学性的同时 ,力求其高效率是创造性思维的目的。我们要运用先进的思维工具 ,采用科学的思维方法 ,尽量减少创造性思维中的挫折和曲折 ,力戒不必要思维时间的浪费 ,以提高创造性思维的效率     

高校学生思想政治教育实效性探索

针对当前高校学生思想出现多元性的特点,必须增强思想政治工作的实效性。为此,要坚持创新,在时代感和针对性上下功夫,从育人手段和思政教育的主体等方面入手,改革“两课”教学模式,营造适合学生特点与需要的校园文化环境,加强思政队伍建设,不断探索增强思想政治教育实效性的方法,努力把思想政治教育工作落到实处。     

网络教育的成本与效益分析

在分析网络教育的特点及发展趋势的基础上 ,对网络教育的成本与效益及相关性问题进行了探讨 ,并提出了网络教育成本分担 ,阐述了通过提高网络教育的利用效率与效益 ,降低网络教育直接成本 ,促进网络教育持续不断发展     

The impact of sales promotions on store performance: a structural vector autoregressive approach

The present paper analyses the impact of sales promotions on store performance, in the short and long term, from the retailer's point of view. Relationships among promoted and regular sales in the hypermarkets of a large-scale retail chain of national importance, are investigated by means of a structural vector autoregressive model (SVAR). Statistically significant effects of sales promotions in the heavy household section on store sales are found in the short-run; these promotions produce additional sales and thus act as an attractive factor. Promotions in textile category, on the contrary, produce an immediate negative effect on net sales. In the long run, negative statistically significant effects on regular sales are detected when promotions are repeatedly implemented within perishables category.     

无因管理问题的研究

无因管理作为民法法律之债的发生依据之一,应当根据社会的发展赋予其新的价值。本文试从无因管理的社会意义和法律性质、成立条件、效力、类型化及类型化无因管理的法律效果等方面就无因管理的有关问题进行了研究。     

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.     

国外社区矫正的理论基础及其发展评估

20世纪70年代以来,世界各国都在不断地进行刑罚制度的改革和创新,社区矫正就是在这样的背景下诞生的一种全新的行刑方式。社区矫正之所以能在现代社会被西方国家普遍接受和采纳,是因为其背后包含了若干深层合理的基础理论,蕴涵着人道和效益的价值理念。正如一个硬币的两面,社区矫正在发展进程中也面临着一些问题:社区矫正在减少再犯和疏减监狱拥挤压力方面成效并不显著;社区矫正的实施容易导致自由裁量权的滥用和社会控制网络的扩张。     

外语教学运行效能机制及其教学应对策略探析

探讨和揭示了外语教学运行中几个基本要素的关系及其运行过程中的教学效能机制,为教学实践提供理论依据。