Quality Contingent Pricing in Used Automobile Market

The problem concerning information asymmetry and quality uncertainty in the used automobile market of China has not been settled in a better way for years. Therefore, how to convey the signal of quality to the customers is of great value for used automobile dealers. On the basis of defining the probability of quality evaluation and for the purpose of achieving per expected revenue maximization, this paper builds a model of quality - contingent pricing and thus makes the optimal pricing and discount policy. In addition, this paper displays directly, through data analysis, the impact of the used automobiles pricing policy on the enterprise profits under the context of information asymmetry.     

Construction and Realization of Gradually Approaching Algorithm on Pricing American Put Options

The American put valuation problem is very important and complicated in the Option Pricing Theory (OPT), and so far the appropriate continuous-time pricing model and compact valuation formula for the American put option have not been found. On the basis of the research works of many scholars such as Black, scholes, Parkinson, Brennan, Schwartz, Rendleman, Bartter, Cox, Ross and Rubinstein etc., making use of the notion of limitation and the binomial approach, this paper constructs and realizes gradually approaching algorithm of pricing American put options. Its reasonability, convergence and validity are tested by computer programming. The results show that this algorithm can effectively resolve the American put valuation problem.     

农用地分等定级与估价信息系统（ALEIS）研制

根据农用地分等定级与估价的基本原理与方法 ,运用组件式地理信息系统 (GIS)和计算机技术 ,研制开发了适于中国国情的通用农地分等定级与估价信息系统 (AL EIS)雏型。该系统包括文件、视图、图层、对象、布局、数据库、分等定级与估价、窗口和帮助等 9大模块 ,具有属性数据库管理、空间数据库管理、农地分等定级与估价、以及成果输出等方面的功能 ,且界面友好 ,操作简便 ,可实现农用土地分等定级与估价自动化 ,为各级土地部门和政府部门提供界面友好和便捷适用的计算机业务管理工具。     

玉米秸秆圆捆打捆机的设计

设计一种玉米秸秆圆捆打捆机,介绍其整体结构与工作原理,详细说明打捆机构和下网机构的结构设计与工作过程。该打捆机具有下网、切网控制准确,包网质量好,可靠性高等特点,适宜进行推广应用。     

农产品价格波动成因与对策研究

从分析农民的生产行为入手,研究了农产品价格波动的原因,结果显示,农产品作为必需品本身的特性是农产品价格波动的根源,对农产品价格的预期,引起农民、消费者、投机者对农产品的储存和抛售行为加剧了农产品价格的波动,不合理的农产品储备制度会加剧农产品价格的波动,选择合适的收购或抛售时机并考虑这些行为对农户生产和对社会储存或抛售的影响,才能起到抑制农产品价格波动的作用,农业信息化能够提高农民预测的准确性和农民对其之间相互影响的认识,达到抑制农产品价格波动的目的。     

基于灵敏度分析方法的第三方物流最优定价模型

在分析第三方物流供需平衡的基础上,提出了第三方物流市场份额分配模型.并运用灵敏度分析方法重点分析价格因素对对物流市场份额的影响,得出最优定价的关系式.最后通过一算例来说明模型和算法的有效性.     

A New Pricing Contract of EPC General Contract： The Application of Target Contract

Due to very large scale of general contract projects, the scope of projects is always uncertain when the contractor bids and the difference between the planned and actual volumes of projects is very large. If a lump sum contract is used to establish the price, contractors thus must take high risks. The contract price is always high, and both owners and contractors show unwillingness to optimize technology under lump sum contract conditions. Owners are inclined to extend the norm and scope of projects. Such situations may result in additional costs. As a new pricing contract, a target contract fits the situation when project scope is not fully defined or the forecasting risks are high. Such a contract can bring both sides enthusiasm for technology optimization and substantially reduces project cost. Therefore, a target contract is suitable for EPC general contract pricing.     

Knight不确定下基于无穷纯跳Levy过程的一般风险资产的动态最小定价

研究了具有Knight不确定性的金融市场下的一般风险资产的动态最小定价,利用倒向随机微分方程(BSDE)理论以及时间-风险折现方法,推导出了基于无穷纯跳Levy过程的一般风险资产在实际概率测度下的动态定价公式及其在Knight不确定性控制集合上的动态最小定价.最后给出了一个欧式看涨期权动态最小定价的例子,并导出期权价格的显示表达式.在Knight不确定环境下, 引入Levy过程来描述股票价格的动态走势,更加符合实际市场,可广泛地应用于一般风险资产的定价过程,这为投资分析提供一定的理论依据．     

粮食价格形成和波动机制研究——文献综述与评析

2004年以来,"最低收购价政策"和"临时收储政策"在保护农民收益、提高农民种粮积极性,保障国家粮食安全等方面发挥了重要作用。随着政策的实施,粮食价格"天花板"封顶效应开始显现、成本"地板"抬升的挤压越来越明显。本研究从政策实施和政策变化角度出发,对我国粮食价格形成和波动机制的现有研究进行梳理和综述,发现现有文献存在缺乏对分品种粮食价格形成机制差异的研究,缺少对大豆价格形成机制进行政策实施前后对比的研究;对粮食价格调控目标和社会福利变动的研究和评价较少等问题。     

农民对农业水价承受能力研究

农民是农业水价承受的主体，其承受能力的大小决定着农业水价改革的力度和进程，通过对人民胜利渠道灌区农民对农业水价承受能力的调查:揭示了灌区的运行能力是随着农业水价的上调逐步增加的，而用水是逐步减少的;农民对农业水价改革的承受能力是非常有限的;当农业水费占到农民年收入的4%一6%(支出的6%一8%)、农业投入的10%-12%和产出的8%-10%时，农民普遍认为水价合理或者基本合理，表示可以接受、愿意缴纳，说明水费没有超出农民的经济和心理承受能力;提出了促进农业水价改革的综合对策。