药品购买行为探讨

医药行业是正在发展的朝阳行业,医药企业竞争激烈.本文深入分析药品购买的影响因素及购买过程,对企业的生产销售活动具有重要的意义.     

苏南丘陵地区实施富山富民工程的调查与思考

无锡市滨湖区地处太湖之滨，依山傍水，农林资源丰富。全区山地总面积10．4万亩，生态公益林面积7．9万亩，经济林面积3．6万亩。多年来，全区各级党委、政府不断总结富山富民工程的成功经验，科学规划和指导全区生态林和经济林的综合开发，区域特色更趋明显，名品精品规模扩大，果农协会作用突出，生态园区     

Long Standing Friendship Continuous Cooperation

This year we celebrate the 55th anniversary of the establishment of dipomatic relations between China and Romania. As a friendly country, having long-term relations with China, what kind of economic cooperation exists between the two nations? What are the incentives that made the trade volume highly rated in the recent years, particularly this year? Which are the perspectives of the Sino-Romanian relationship? With those questions, the reporters have interviewed H.E. Ambassador Viorel Isticioaia-Budura, Ambassador of Romania to China.     

An empirical analysis of the relationship between the hedge ratio and hedging horizon: A simultaneous estimation of the short‐ and long‐run hedge ratios

This article analyzes the effects of the length of hedging horizon on the optimal hedge ratio and hedging effectiveness using 9 different hedging horizons and 25 different commodities. We discuss the concept of short‐ and long‐run hedge ratios and propose a technique to simultaneously estimate them. The empirical results indicate that the short‐run hedge ratios are significantly less than 1 and increase with the length of hedging horizon. We also find that hedging effectiveness increases with the length of hedging horizon. However, the long‐run hedge ratio is found to be close to the naïve hedge ratio of unity. This implies that, if the hedging horizon is long, then the naïve hedge ratio is close to the optimum hedge ratio. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:359–386, 2004     

QUADRATIC TERM STRUCTURE MODELS FOR RISK-FREE AND DEFAULTABLE RATES

In this paper, quadratic term structure models (QTSMs) are analyzed and characterized in a general Markovian setting. The primary motivation for this work is to find a useful extension of the traditional QTSM, which is based on an Ornstein–Uhlenbeck (OU) state process, while maintaining the analytical tractability of the model. To accomplish this, the class of quadratic processes, consisting of those Markov state processes that yield QTSM, is introduced. The main result states that OU processes are the only conservative quadratic processes. In general, however, a quadratic potential can be added to allow QTSMs to model default risk. It is further shown that the exponent functions that are inherent in the definition of the quadratic property can be determined by a system of Riccati equations with a unique admissible parameter set. The implications of these results for modeling the term structure of risk-free and defaultable rates are discussed.     

China and Egypt:More Cooperation Brings Prosperous Future--Interview with H.E.Ali El-Hefny,Ambassador of Egypt to China

Q:With long history and outstanding cultural achievements, China and Egypt have good cooperation in politics,economy, tourism, and education. Focusing on economy, what complementarities do you think our two countries have? What kind of potentials could be discovered and in which aspects could we enhance economic and trade cooperation?     

中国企业到美国跨国并购的方法与技巧(上)

中国企业到美国跨国并购成了国际媒体热门话题。但怎样并购、如何规避并购风险等问题，中国企业却心中无数。如何提高跨国并购的成功率，是摆在中国企业面前的一道难题。本文主要论述中国企业到美国跨国并购的具体操作方法和技巧。     

公司治理结构中经营者盈余管理的博弈分析

本文从经营者与监督者之间的博弈模型入手,讨论了公司治理结构对盈余管理的影响,并在分析了我国目前的公司治理结构存在的问题后,提出了一些措施,最后给出了研究建议。     

纽约股票市场对中国A股市场的影响

首先，本文考察了纽约股市波动对中国A股市场的影响。一般认为，中国的A股市场由于严格的资本控制而免受外国影响。但是，通过月度、每周、每日的样本数据（1992年到2004年），经过季节性调整和汇率变动调整后，我们发现上海和深圳A股市场的变动与美国股票价格指数变动相一致。其次，我们考察国家贝塔值（country beta）在马尔可夫转换误差修正模型中的动态关系。对中国市场来说，国家贝塔值和错误纠正项的重要性紧密相连。在东亚金融危机之前，美国市场对中国A股市场的影响普遍存在，而东亚金融危机产生后，则是通过国家贝塔值来影响中国股市的收益。     

衍生品保证金计算的国际经验比较

随着国内金融衍生品市场的逐渐兴起，投资机构、交易所和证券监管部门等将面临越来越复杂投资组合的风险管理问题。目前国际上各交易所广泛使用的两大保证金系统是SPAN系统和TIMS系统。本文对这两大系统的计算原理进行了归纳和梳理，并就各自的优缺点进行了比较，以期对国内金融衍生品的保证金设计和风险管理提供借鉴。