计轴自动站间闭塞及调度集中设备的行车组织对策建议

介绍了计轴自动站间闭塞和调度集中设备概况,针对这些技术设备在青藏铁路哈尔盖—格尔木间的应用,论述了相应的行车组织对策,并根据目前的有关规章要求,对计轴自动站间闭塞方式和调度集中作业提出了应进一步研究和探讨的问题。     

左宗棠开发西北的思想和实践

晚清重臣左宗棠在经略西北期间，提出了一系列开发、建设西北的思想。他在因地制宜兴修水利，植树造林，农牧并举，发展少数民族地区经济和文化教育，推广近代工业和商业贸易等方面进行了积极实践。他的许多宝贵经验对我们今天的西部大开发仍具有启示作用。     

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     

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?     

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。