Causal Relations Among Stock Returns,Interest Rates,Real Activity,and Inflation

Using a multivariate vector-autoregression (VAR) approach, this paper investigates causal relations and dynamic interactions among asset returns, real activity, and inflation in the postwar United States. Major findings are (1) stock returns appear Granger-causally prior and help explain real activity, (2) with interest rates in the VAR, stock returns explain little variation in inflation, although interest rates explain a substantial fraction of the variation in inflation, and (3) inflation explains little variation in real activity. These findings seem more compatible with Fama (1981) than with Geske and Roll (1983) or with Ram and Spencer (1983) .     

Do Firms Knowingly Sell Overvalued Equity?

This article examines the relation between top executives' trading and the long-run stock returns of seasoned equity issuing firms. Primary issuers, who sell mostly newly-issued primary shares, significantly underperform their benchmarks, regardless of the top executives' prior trading pattern. However, top executives' trading is reliably associated with the stock returns of secondary issuers, who sell mostly secondary shares previously held by existing shareholders. On average, secondary issuers do not underperform their benchmarks. The results suggest that increased free cash flow problems after issue play an important role in explaining the underperformance of issuing firms.     

RFID技术在集装箱运输管理中的应用

本文主要结合近些年来RFID技术的发展的特点，简要介绍了集装箱运输管理中RFID的应用。作为新的技术，RFID技术有其显著的优势，但其在广泛应用之前仍面临着很大的困难。在集装箱运输上，RFID显著地提高了运输过程的透明度和安全性，使得供应链管理的思想得到进一步地推广。     

供应链上非营利组织的整合营销传播组织模式研究

介绍了非营利组织与整合营销传播理论及供应链上非营利组织整合营销传播的特性,最后详细论述了供应链上非营利组织整合营销传播组织模式的设计思路。     

从全面优惠到行业优惠——我国对外商直接投资企业税收优惠政策的调整思路

以所得税减免为主体的我国对外商直接投资企业的税收优惠政策，对我国利用外资规模的不断扩大起到了积极作用，但是这一政策在实施过程中也产生了一些问题。随着我国利用外资工作的不断深入，通过调整外资政策，实现提高我国利用外资水平、减少税负不公等负面影响，是目前我国利用外资工作的一项重要任务。从目前我国利用外商直接投资的实际情况看，对外商投资企业从全面优惠到行业优惠的政策调整，既考虑到了税收优惠对吸引外资的作用，又兼顾到市场公平竞争的需要，有利于解决我国利用外资中出现的一些问题，应该是现阶段我国利用外商直接投资优惠政策的合理选择。     

基于时间驱动作业成本法下的物流成本核算

传统的作业成本法在核算物流成本过程中显得特别繁琐,很难推广开来。时间驱动作业成本克服了核算程序上繁琐的问题,它将资源动因和作业动因过程融合在一起,使物流成本的计算过程更简单,这种方法也更容易推广。本文将介绍时间驱动作业成本法的核算步骤、时间驱动作业成本法与传统作业成本的区别、时间作业成本法在物流成本核算中具体应用等相关内容。     

云南主要生态环境问题及其人口因素与对策

本文阐述了云南省的主要生态环境问题，如耕地质量下降、水土流失严重、生物多样性锐减、农村生态环境恶化等简述了产生生态问题的人口因素，包括人口的不断增长、人口的贫困、人口的教育问题。根据云南50年来的人口统计数据论了云南总人口增长的未来趋势。最后对云南省的生态问题进行了人口因素分析，提出了缓解生态压力的相应措施。     

Investment Horizon and Composition of Optimal Portofolio: International Evidence

Little attention has been paid in the literature to the impact of different investment horizons on the portfolio compositiondespite its importance to portfolio managers. One exception isthe study by Gunthorpe and Levy (1994) on the U.S. stock market.Our paper extends the same study to the stock markets of Japan,Hong Kong and Korea. Using 40 individual stocks in each market,our results support those of Gunthorpe and Levy (1994) in thatthe composition of an optimal portfolio depends heavily on theinvestment horizon. When the investment horizon lengthens, theproportion of defensive stocks becomes larger while that ofaggressive stocks becomes smaller.     

浅谈石油化工施工企业工程项目成本管理与控制

对于任何企业来讲,成本对利润起着非常重要的影响,施工企业同样如此。目前我国有很多建筑企业存在着对工程成本的管理不是很重视或者管理不到位的现象。本文对石油化工施工企业的工程项目成本的管理与控制进行探讨和分析。