电子书店中的用户角色分配自动化

在大型电子商务系统中,从用户到角色进行人工分配代价巨大,且容易出现错误的角色分配,文章以一个电子书店中的用户角色分配为基础,详细介绍了基于属性与约束的用户角色自动分配的设计与开发实现过程。     

The linkage between the US and Korean stock markets: the case of NASDAQ, KOSDAQ, and the semiconductor stocks

This paper examines the interrelationship between stock prices in the US and Korea by applying the vector autoregression (VAR) model to the daily stock prices at three different level of aggregation – the national aggregate index level, the high-tech industry level and the semiconductor firm level – for the period of July 1996 through February 2001. The major findings of this study are as follows. First, the US stock market plays a leading role over the Korean market at every level of aggregation. The reverse direction of influence, from Korea to the US, was found to be minimal. Second, the evidence also suggests that the speed of transmission of innovation from the US to Korea is swift and finished for the most part within a 24-h period, although it takes three or four days to complete the whole process. Third, the influence of the US stock prices on Korean stock prices, which is measured by the innovation transmission using the impulse–response function (IRF) analysis, seems to be somewhat stronger in the composite national stock price indices and the tech-laden indices than high-tech firms. Fourth, at the firm level, the influence of Micron Technology on the leading semiconductor manufacturers in Korea is shown to be strong and persistent by passing about 34 percent of its innovations to the Korean firms within the three-day period. The impact of IBM and Intel on the Korean chip makers seems to be relatively smaller. Finally, stock prices in Korea, national stock price indices and individual high-tech stocks alike, have become much more responsive to innovations in the US stock prices after the 1997 financial crisis. The implications of the main findings in this paper are also discussed.     

再论耕地总量动态平衡

研究目的:分析中国耕地保护政策和未来发展的极限状态,提出中国耕地保护新的思维框架,为国家制定相关政策提供参考.研究方法:反演思维法.研究结果:当中国人口达到16亿时,全国用于建设占用耕地的极限值大约在3.39×106ha～3.73×106ha左右.耕地总量到2020年将达到极限水平.到2030年人口高峰来临,尚有一定的耕地缺口.研究结论:变"耕地总量动态平衡"为"农用地总量动态平衡",变"粮食安全"为"食物安全",建立农用地总量动态平衡与食物安全监测与预警制度,从提高复种指数、增加草食养殖等途经保证食物安全.做到:总体控制,动态监测,提前预警,分区管理,统筹兼顾,逐步实施,整体发展.     

CEPA框架下港、深、穗的合作与分工——兼谈深圳在区域经济中的角色与定位

2003年6月29日和10月17日，香港、澳门先后与内地签署“关于建立更紧密经贸关系安排”协议（简称CEPA）。就性质而言，CEPA相当于国际上通行的自由贸易区，但是，CEPA与自由贸易区也有重要区别。一般自由贸易区协议通常是一次定型，一经签署就不能随意更改，且往往是适用于国家与国家之间的协议；而CEPA则遵循”先易后难、逐步推进”的原则不断扩充，逐步深化，并且将更能体现在WTO总体框架下港澳与内地之间一个国家内部几个独立关税区之间的特殊关系和客观现实。在CEPA下，香港、澳门与内地，主要是与广东的经济一体化进程无疑将会进一步加快，其最终目标，至少发展至“共同市场”的阶段，达致区域内人流、物流、资金流和信息流能畅通地双向自由流动，实现区域内生产要素和社会资源的较优配置。     

论中小股东权益之法律保护

中小投资者是证券市场发展的根本。但由于大股东在公司中的地位,使得中小股东权益一直没有得到充分的尊重和保护。文章从中小股东权益保护必要性分析入手,立足我国中小股东权益保护的现状分析,着重论述完善中小股东权益保护机制的建议和意见。     

How Can We Better Understand Current and Future Workforce Values in the Global Business Environment?

Our study tested the predictive power of socioeconomic development theory and age differences theory to explain work values across cultures and across age groups. We compared the values orientations of future managers, business students under the age of 25, with those of current managers and professionals, who we split into three decade groups (30 to 39, 40 to 49, and 50 to 59). Our respondents (n = 1,518) come from six diverse societies: Brazil, Germany, Indonesia, Russia, the United States, and Vietnam. Our findings indicate that both theories contribute to our understanding of work values and behaviors. One implication is that while socioeconomic development theory makes an important contribution, it is clearly not sufficient by itself to explain work values/behavior differences in the global context. The study findings and the discussion of them will hopefully provide multinational managers with a clearer assessment of current and future workforce values/behavior. © 2012 Wiley Periodicals, Inc.     

When impediments make you jump rather than stumble: Regulatory nonfit, implementation intentions, and goal attainment

This paper examines the relative effectiveness of forming implementation intentions (i.e., making specific plans regarding how to go about achieving a goal) for increasing goal attainment under regulatory fit vs. nonfit. We discuss and empirically test the proposition that regulatory nonfit increases the effectiveness of implementation intentions. Extant research contrasts goals of differing difficulty (e.g., buying a textbook vs. finding an apartment) in order to test the relative effectiveness of implementation intentions. In contrast, the present study focuses on identifying the change in implementation intention effectiveness for the same goal (i.e., collecting and turning in receipts for a reward) under conditions of fit vs. nonfit. We empirically demonstrate that when faced with the same goal, people who experience regulatory nonfit perceive the task to be more difficult to complete than people who experience regulatory fit. In turn, when the task is perceived as being more difficult, implementation intentions prove more effective to enhance goal attainment. Our study provides insight into the interaction between regulatory fit and implementation intentions and subsequent effects on goal attainment.     

Global market shocks and poverty in Vietnam: the case of rice

World food prices have experienced dramatic increases in recent years. These “shocks” affect food importers and exporters alike. Vietnam is a major exporter of rice, and rice is also a key item in domestic production, employment, and consumption. Accordingly, rice price shocks from the world market have general equilibrium impacts and as such, their implications for household welfare are not known ex ante. In this article, we present a framework for understanding the direct and indirect welfare effects of a global market shock of this kind. We quantify transmission of the shock from global indicator prices to domestic markets. Then we use an applied general equilibrium model to simulate the economic effects of the price changes. A recursive mapping to a nationally representative household living standards survey permits us to identify in detail the ceteris paribus effects of the shock on household incomes and welfare. In this analysis, interregional and intersectoral labor market adjustments emerge as key channels transmitting the effects of global price shocks across sectors and among households.     

Advertising Benefits from Ethical Artificial Intelligence Algorithmic Purchase Decision Pathways

Journal of Business Ethics - Artificial intelligence (AI) has dramatically changed the way organizations communicate, understand, and interact with their potential consumers. In the context of this...