季度现金流量的信息含量研究

本文选择沪深两市共85家在2004年4月28日公布季度报表的A股上市公司为样本,采用事件法检验累计报酬率与非预期现金流量的关系。结果发现,我国的证券市场对于季度现金流量信息反应较弱,投资者基本上不关注季度现金流量信息。根据未预期盈余对样本进行分组,重新检验了市场对于不同盈余公司的现金流信息的市场反应,发现市场对于好消息公司的现金流信息的反应比坏消息公司更为敏感。     

Structural Change And Innovation In U.S. Telecommunications

This paper reexamines broadly. from the standpoint of innovation, the arguments for vertical integration in the U.S. telecommunications industry in light of structural change since the breakup of the Bell System. While basic and applied research became the casualty of the 1984 breakup and the 1995 AT&T split, there is no evidence that the pace of innovative activity and productivity has slowed. Evidence from R&D and patent data suggests some acceleration of innovative activity. However. the service segment of the industry ceased to be the center of technological innovation. The source of future innovation seems to lie in the telecommunications and Internet equipment firms and independent software firms. The emergence of the competitive stand-alone software industry, combined with a trend towards open operating systems and customer demand for greater flexibility, and growing substitution of technology alliances for in-house R&D appear to have undermined the case for vertical integration in the telecommunications industry. From the standpoint of business strategy, the question of whether a firm like AT&T, notwithstanding its huge investments in cable facilities, can develop distinctive and sustainable capabilities through horizontal expansion and ubiquity and one-stopshopping marketing alone remains open.     

Caste,Kinship, and Life Course: Rethinking Women's Work and Agency in Rural South India

This paper reexamines the linkages between women's work, agency, and well-being based on a household survey and in-depth interviews conducted in rural Tamil Nadu in 2009 and questions the prioritization of workforce participation as a path to gender equality. It emphasizes the need to unpack the nature of work performed by and available to women and its social valuation, as well as women's agency, particularly its implications for decision making around financial and nonfinancial household resources in contexts of socioeconomic change. The effects of work participation on agency are mediated by factors like age and stage in the life cycle, reproductive success, and social location – especially of caste – from which women enter the workforce.     

治理“地沟油”问题研究进展及评述

我国餐厨垃圾资源化行业正处于起步阶段,餐厨垃圾中的废油即俗称的"地沟油"流回餐桌的现象屡禁不止,与法律法规及行业标准欠缺、分段监管体制弊端等问题相关,也与正常的产业链通路还未成形有重要的联系。要从源头上切断"地沟油"黑色产业链,推动餐厨垃圾资源化产业的健康发展,需要国家对餐厨垃圾资源化产业进行长远规划,完善相关法律法规,理顺行业管理体制,制定行业发展政策,疏通餐厨垃圾资源化产业链通路,让"地沟油"有合理的出路。     

环境风险规制政策选择及其对我国的启示

环境规制是控制全球环境问题的重要手段之一.文章从环境风险规制研究现状出发,通过对环境博弈主体的分析,探讨环境规制政策工具的选择,并在对我国环境规制现状分析的基础上,总结对我国环境风险规制的启示.     

企业持续发展的绩效管理探讨

绩效管理注重组织目标和个人目标的一致性,通过提升个人绩效实现组织绩效的提高,对企业可持续发展具有重要意义。工作分析是绩效管理的基础,工作分析结果是实施绩效管理的依据;绩效考核是绩效管理的一个环节,科学的绩效考核是企业先进管理的重要手段;人力资源是企业持续发展的重要资源,有效的绩效管理可避免人才过度流失。     

基于AHP的逆向物流评价指标排序

在考虑多方面的因素基础上建立了逆向物流评价指标,通过层次分析方法对每个指标进行权重排序,可以方便地进行逆向物流项目的评价,对发现逆向物流项目所存在的问题有很重要的现实意义。     

我国金融发展促进FDI的出口增长效应实证研究

运用我国1991至2010年商品出口额、金融发展和FDI相关的时间序列数据,考察我国金融发展对FDI的出口增长效应的促进作用。实证结果表明：我国金融市场规模的扩大未能促进FDI的出口增长效应,而金融市场效率的提高能促进企业对FDI技术溢出的吸收能力,进而促进出口的增长。建议我国加快提高金融市场的效率,努力发挥政策性金融支持出口的作用。     

Impact of exchange rate regime reform on asset returns in China

Employing monthly data over the period 1999–2010, this paper examines the impact of China's exchange rate regime reform in July 2005 on three major asset markets: house, land, and stocks. We test whether the reform, which switches from a fixed exchange rate regime to a managed floating one, has brought forward structural changes to asset return dynamics. The results suggest that the exchange rate regime switch exerted the most significant impact on house and land returns at the national level, in terms of both returns and their volatilities. In contrast, its impact on China's stock market was moderate, with no structural change being detected in its returns and only weak structural change being found in the dynamics of its volatility. We also find that in comparison with other popular explanatory variables, broad money supply and inflation have the largest explanatory power on housing and land returns in China after the policy reform.     

Some generalized distributions based on Stacy's generalized gamma distribution

Abstract

The generalized gamma distribution having the density function was introduced by Stacy (1962), who studied some of its properties. As observed by Stacy, many standard distributions are special cases of (1). For example d=p=1 gives the exponential, p=1 gives the gamma p=1 and d=n/2 (n is a positive integer) gives the chi-squared, and d=p gives the Weibull distribution. Furthermore, certain functions of a normal variable— viz., its positive even powers, its modulus, and all positive powers of its modulus, have Stacy's gamma form.