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861.
主要论述为某银联分公司所构建的面向清算主题的数据仓库的方法与具体实施过程,该数据仓库已投入使用并取得良好的效果。 相似文献
862.
Using a panel dataset for 28 sub-industries from 5 Chinese industries from 1995 to 2006, this paper examines the impact of human capital, R&D expenditure and FD1 spillover on the productivity improvement of Chinese high-technology industries. The whole industry sample results suggest that human capital promotes total factor productivity, technical change and technical efficiency change, but that FDI lowers all of these factors in Chinese high-technology industry. When we distinguish between types of ownership structure in the industries, we find that human capital improves technical change but lowers technical efficiency change, whereas FDI only improves technical efficiency change in state-owned and state-controlled enterprises but reduces technical change in state-owned and state-controlled enterprises and joint ventures. 相似文献
863.
864.
在由城乡二元经济向城乡一体的一元经济转型过程中,中国城乡隐性失业的剩余劳动力显性化为流动劳动力.因此,要了解和把握中国的整体失业率,其关键是弄清楚在转型期中历年城乡剩余劳动力的规模.本文从人口流动的角度考察隐性失业(剩余劳动力)显性化(流动劳动力)与中国整体失业率,并利用DEA(数据包络分析)对1978-2007年的中国整体失业率进行估计.估算结果表明:中国30年来的整体失业率为6%~10%,且失业与增长的关系与Okun定律相吻合.其中,第一条包络线是剩余劳动力的最大供给曲线,该曲线将所有流动劳动力高峰值包络在内;第二条包络线是城镇常住劳动力供给曲线,该曲线将所有流动劳动力的低谷值包络在内. 相似文献
865.
866.
Yi‐De Liu 《International Journal of Tourism Research》2008,10(3):283-288
Traditionally, financial ratios were used for profitability measurement. This research attempts to apply data envelopment analysis (DEA) to aggregate various financial ratios into a composite profitability index. The research sample includes 13 parks managed by 10 leading theme park operators in the UK. The result first reveals that multi‐site operators are significantly more profitable than their single‐site rivals. Furthermore, the consistency between DEA and ratio analysis indicates that DEA can be used as a good proxy of ratio analysis. It is hoped that this approach can provide new insights about financial measurement not available to managers through ratio analysis. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献
867.
Shahriar Akter Samuel Fosso Wamba Mary Barrett Kumar Biswas 《Journal of Strategic Marketing》2019,27(6):521-539
We know very little about how big data-driven service analytics capabilities (SAC) are built in data-driven service organizations and the potential role of talent capability in facilitating overall SAC and the impact of both on firm performance (FPER). Drawing on the dynamic capabilities (DC) approach, this study investigates the link between SAC and FPER examining the mediating role of talent capability and the moderating influence of a firm’s strategic alignment. On the basis of two Delphi studies and survey data from 267 service analysts in the US and France, the findings show that even though SAC are built on technology, talent and information capabilities, their overall impact on firm performance is mediated by the level of talent capability of service analytics managers. The findings also confirm the critical moderating impact of strategic alignment between dynamic talent capability and firm performance in the big data environment. 相似文献
868.
A sales channel serves two primary functions: delivering information and products to customers. Omnichannel retailing allows for the decoupling of these two functions as consumers can learn about products through channels that differ from those used to purchase them. This separation requires a sophisticated inventory and supply chain operation, as well as integration of all customer touchpoints, in order to match fast-moving supply and demand. The Internet of Things (IoT) can play a fundamental role in channel integration because it allows companies to rebalance supply and demand. We classify IoT initiatives on an opportunity map, presenting a strategic framework that distinguishes initiatives by the value they create and by their major area of impact. We justify the adoption of IoT in terms of its enabling capabilities—those immediately realized by deploying IoT sensor data—but its true potential resides in its enhancing capabilities—unanticipated benefits following IoT adoption—at the intersection of supply and demand. 相似文献
869.
Bertrand Blancheton Dina Chhorn 《The journal of international trade & economic development》2019,28(2):189-229
This paper examines the dynamic effect of globalization at the disaggregated level of sectoral export diversification and manufacturing specialization on income inequality using a panel data set of 52 Asian and Western countries from 1988 to 2014. The paper uses dynamic panel data models applying the System Generalized Method of Moments (GMM) estimations that provide more accurate and better results than those obtained with static panel data models. The results suggest that there is no statistically significant relationship between manufacturing specialization and inequality while sectoral export diversification has been the driving force of inequality. For sub-groups of countries, higher sectoral export diversification increases inequality and higher manufacturing specialization decreases inequality in high-income Asian countries and European Union (EU) member states. Moreover, the study finds insignificant effects in low-income Asian countries and Anglo-Saxon countries. 相似文献
870.
空中异构战术无线网络由多种不同类型的无线数据链网络构成,IP通信技术可有效解决空中平台异构无线网络的互联互通问题。给出了空中异构战术无线网络模型,并根据不同类型的无线数据链网络特点,分析了端到端通信协议栈关系以及不同无线数据链网络间协议转换与适配方式。探讨了网络静态和动态IP地址分配方法以及网络的路由架构与寻址方式,提出了不同无线数据链网络间IP报文传输的打包方式。对传输的开销性能仿真对比分析表明,基于通用成帧协议的打包方式的协议开销性能较优。 相似文献