古典框架下的交易网络形成与发展分析

网络因利益而产生，也因参与主体的利益追逐而发展，利益是网络发展的激励因素。本从网络发展的动态性出发，在古典经济学的分析框架内，运用博弈论，从供需角度来对网络的形成和发展进行分析，得出网络是自发动态发展的，网络参与为了获得利益而相互竞争推动创新和分工的细化以及网络的更新发展的结论，最后提炼出网络的本质特点。     

外推型预期公式的检验与评价

经济学中的很多变量需要预测,其中的一个方法是运用外推型预期公式。由于外推型预期公式有 其自身特点和规律,即趋势值的选择是影响预测效果的一个主要变量,因此使用该公式进行经济预测时, 短期预测应选择较小的趋势值,长期预测应选取中间的趋势值。     

The complex integration strategies of multinationals and cross country dependencies in the structure of foreign direct investment

The behavior of many multinational enterprises is not well described by existing models of foreign direct investment (FDI). Firms often follow strategies that involve vertical integration in some countries and horizontal integration in others, a strategy known as complex integration. This paper presents a three-country model that is used to analyze why firms might follow a strategy of complex integration. My analysis reveals that complex integration strategies create complementarities between potential host countries that have important implications for the structure of FDI. The analysis also shows that falling transport cost between countries may increase the importance of complex integration strategies.     

当前我国中西部地区民间投资状况的透视与思考——以山东西部城市菏泽为例

经过20余年的经济发展,在东部沿海的私营经济发展如火如荼的同时,我国中西部地区的民间投资也日趋活跃,本文试图以山东西部城市菏泽为例,对目前我国中西部地区的民间投资状况予以透视与思考。     

重构企业R＆D项目战略投资决策方法体系

传统的投资决策方法是一种建立在广泛应用的以货币的时间价值为基础的投资决策方法,它已越来越不能适应当今充满不确定性和竞争性的市场需要.实物期权方法比传统的折现现金流法（DCF）更适合来分析不确定条件下的投资决策问题,但仅凭实物期权方法还不能对不完全竞争环境下的企业R＆D项目战略投资问题进行准确分析和估价,而引入期权博弈理论恰好能克服这些缺陷.文章从理论上阐述了重构企业R＆D项目投资决策方法体系的可能性和必要性,并由此提出了研究的基本框架.     

实物期权在房地产投资估价中的应用

与传统的投资决策方法相比,实物期权方法不仅考虑到房地产投资的不确定性带来的风险,还体现了其柔性管理和战略投资的价值。介绍了实物期权理论的概念与分类,将实物期权理论引入房地产投资估价中,并通过等待期权实例分析说明了其在实际中的应用。     

R&D项目投资评估的实物期权方法初探

本文分析了传统的NPV法在R&D项目投资评估中的缺陷,指出R&D项目投资本质上所具有的期权特性。在此基础上引入了实物期权方法,包括Black-Scholes期权定价方法和Geske期权定价模型。     

Probability theory in fuzzy sample spaces

This paper tries to develop a neat and comprehensive probability theory for sample spaces where the events are fuzzy subsets of The investigations are focussed on the discussion how to equip those sample spaces with suitable -algebras and metrics. In the end we can point out a unified concept of random elements in the sample spaces under consideration which is linked with compatible metrics to express random errors. The result is supported by presenting a strong law of large numbers, a central limit theorem and a Glivenko-Cantelli theorem for these kinds of random elements, formulated simultaneously w.r.t. the selected metrics. As a by-product the line of reasoning, which is followed within the paper, enables us to generalize as well as to bring together already known results and concepts from literature.Acknowledgement. The author would like to thank the participants of the 23rd Linz Seminar on Fuzzy Set Theory for the intensive discussion of the paper. Especially he is indebted to Professors Diamond and Höhle whose remarks have helped to get deeper insights into the subject. Additionally, the author is grateful to one anonymous referee for careful reading and valuable proposals which have led to an improvement of the first draft.This paper was presented at the 23rd Linz Seminar on Fuzzy Set Theory, Linz, Austria, February 5–9, 2002.     

三维激光扫描仪在地形测量中的应用

文章从三维激光扫描仪在测量中的作用入手,详细介绍了三维激光扫描仪的工作原理和三维激光扫描系统,并说明了三维激光扫描仪配套三维数据处理软件的功能,着重介绍了三维数据的处理方法:点云的连接、特征线的提取、对地物的三维建模(TIN建模),在TIN建模中,介绍了狄洛尼三角网的构网方法。     

我国房地产投资基金的发展研究

首先揭示我国发展房地产投资基金(REITs)的意义所在,然后深入分析我国在发展REITs过程中所遇到的问题和障碍,并提出若干政策和建议。