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关键词： 同事   学习   现值  

摘要： 你是不是工作认真踏实，却没有得到足够的赏识？你是不是很看不起那些没有你踏实，却比你会表现的“马屁精”、“坏同事”？其实，这些“坏同事”身上也有许多表现值得我们学习。

关键词： ARIMA(p,d,q)模型   企业生存年金   精算现值  

摘要： 把精算实务中利息力的随机性用ARIMA(p,d,q)随机过程来表示,并利用矩阵代数理论将其转换成较简单的矩阵形式,然后以此为基础探讨了企业生存年金的精算现值问题.

关键词： 投资   融资   收益率   净现值  

摘要： 本文从影响投资市场需求、投资者风险类型、外部环境和财务指标等外部和内部条件以及影响融资的融资成本、融资风险等宏观与微观一般性因素出发,结合港口项目投资的规模大、排他性强等特点和性质,对港口项目融资进行进一步探讨。

关键词： Cash flow weight   net   present value   project scheduling   shifting procedure  

摘要： The problem of scheduling project with resource constrained to maximise their Net Present Value (NPV) is studied in this paper. The performance of Cash Flow Weight (CFW) scheduling heuristics is evaluated. This heuristics procedure has been used to improve the NPV of the project activity. Despite their inherent simplicity, this approach performs well at improving project NPV in some certain cash flow patterns. Subsequent application of the shifting also performs well to improved activities assignment and help to increase project NPV over the initial solution obtained

关键词： Project scheduling   Net present value  

摘要： We consider a project scheduling problem with permitted tardiness and discrete time/resource trade-offs under maximum net present value objective. In this problem, a project consists of a set of sequential phases such that each phase contains one or more sub- projects including activities interrelated by finish-start-type precedence relations with a time lag of zero, which require one or more renewable resources. There is also a set of unconstrained renewable resources. For each activity, instead of a fixed duration and known resource requirements, a total work content respect to each renewable resource is given which essentially indicates how much work has to be performed on it. This work content can be performed in different modes, i. e. with different durations and resource requirements as long as the required work content is met. Based on the cost of resources units and resource requirements of each activity, there is a corresponding cash flow for the activity. Each phase is ended with a milestone that corresponds to the phase income. We prove that the mode corresponding to the minimum possible duration of each activity is the optimal mode in this problem. We also present a simple optima scheduling procedure to determine the finish time of each activity.

关键词： Economic Efficiency   Low External Input Technology   High External Input Technology   Macroeconomic Environment.  

摘要： The study compared economic efficiency among smallholder farmers who practiced low external input technology [LEIT] and high external input technology [HEIT] agriculture in a harsh macroeconomic environment typified by inadequate fertilizer subsidy in Imo State, Nigeria. Cross sectional data generated from 160 smallholder farmers randomly selected from 2 out of the 3 agricultural zones in Imo State were used. Profit function was used in analyzing the data. Results showed that the LEIT farmers achieved higher level of economic effi- ciency relative to their HEIT counterparts, although the difference is statistically non significant. It is therefore recom- mended that in the face of escalating costs of fertilizer, organic manure could be used. Appropriate policies should be put in place by the government to encourage livestock rearing so as to effectively utilize their bye product-organic manure. Household refuse or bio-degradable from the cities could be channeled to farms to serve as organic manure.

关键词： Net present value   NPV maximization   project scheduling  

摘要： The vast majority of the project scheduling methodologies presented in the literature has been developed with the objective of minimizing the project duration. In doing so, the financial aspects of project management are largely ignored. If financial aspects taken into consideration of particular interest to project management, the maximization of project net present value (NPV) then decided as the more appropriate objective. Since the amount of literature related to the project scheduling problem is enormous, this paper addresses only the literature related to the project NPV maximization problem. In this paper we review the fundamental approaches for maximizing NPV project scheduling problem as well as to summarize and categorize the model that have been proposed and presented in the literature. We found out that metaheuristics strategy such as Genetic Algorithms and Tabu search have recently attracted more intention and been the most popular strategies for solving the project scheduling problem with objective of maximizing NPV

关键词： STOCK exchanges   MATRICES   GLOBALIZATION   EIGENVALUES   EIGENVECTORS  

摘要： We investigate the daily correlation present among market indices of stock exchanges located all over the world in the time period January 1996 to July 2009. We discover that the correlation among market indices presents both a fast and a slow dynamics. The slow dynamics reflects the development and consolidation of globalization. The fast dynamics is associated with critical events that originate in a specific country or region of the world and rapidly affect the global system. We provide evidence that the short term time scale of correlation among market indices is less than 3 trading months (about 60 trading days). The average values of the nondiagonal elements of the correlation matrix, correlation-based graphs, and the spectral properties of the largest eigenvalues and eigenvectors of the correlation matrix are carrying information about the fast and slow dynamics of the correlation of market indices. We introduce a measure of mutual information based on link co-occurrence in networks in order to detect the fast dynamics of successive changes of correlation-based graphs in a quantitative way.

关键词： 货币时间价值   教育投资   投资收益   内含报酬率  

摘要： 在大学学费高涨、就业压力剧增的背景下,"读书无用论"又"卷土重来"。在新形势下,以初中毕业生选择报读电大"2+2"大专为例,应用财务管理中的货币时间价值观念,对教育投资的收益进行估算,结果表明:除了教育的信号功能依然有效外,教育投资依然是一项十分值得的投资,当然要特别注意教育投资的时效性问题,同时能力是关键,学习要以社会需求为导向。

关键词： 自行车行业   经济运行分析   电动自行车   中国   宏观经济环境   国际市场需求   自行车出口   经济复苏  

摘要： 2010年,是国内外宏观经济环境极为复杂的一年,特别是世界主要国家经济复苏的进程和内涵极不平衡,因此恢复和调整成为全年行业经济运行的基本特征。一方面,随着国际市场需求的回升,自行车、电动自行车出口迅速恢复到危机前的水平,另一方面,国内自行车、电动自行车市场结构继续深入调整,同时新兴出口市场持续快速发展。