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31.
This paper applies the conceptual framework of ‘unbundling’, proposed by Baldwin (2016), to assess the value chain connectivity in Indonesia. Indonesia is a geographically large country, and three different levels of unbundling co-exist. The first unbundling aligns with the industry-wise international division of labour in plantation agriculture, mining, and labour-intensive industries; the second aligns with where the task-wise international division of labour dominates mainly in machinery industries; and the third aligns with where face-to-face costs are reduced by the digital economy. We argue that the further upgrading of unbundling and the more effective use of advanced piecemeal technologies among different levels of unbundling will enable Indonesia to achieve rapid and equitable economic development. Overcoming distance is key for effectively using the mechanics of unbundling. We propose that three key elements are be promoted: enhancement of connectivity, development of the service sector, and improvement of the policy environment. 相似文献
32.
Central Bank Actions and Words: The Intraday Effects of FOMC Policy Communications on Individual Equity Volatility and Returns 下载免费PDF全文
We compare intraday impacts of the release of Federal Reserve decision announcements and of Federal Open Market Committee minutes between 2004 and 2015 on 1,997 equity return and volatility series. We find that returns are unresponsive to either news release, but conditional volatility increases for both, manifesting immediately after each information release, and persisting for 30 minutes post‐announcement. These effects are larger for decisions than for minutes. On stratifying firms by trading intensity, we find most “high trading intensity” firms respond to these announcements, while “low trading intensity” firms are less affected. Our results show that traders respond, albeit differently, to both sets of information releases. 相似文献
33.
一种特殊的码型对载波恢复环路性能影响的分析 总被引:19,自引:0,他引:19
本文从几个不同的角度对国际商务英语及其教学作一番思辨。作者就以下3个问题发表了自己的看法:(1)多角度地界定国际商务英语;(2)国际商务英语学习者群体的成份;(3)国际商务英语教学的主要特点和规律。 相似文献
34.
提出了一种适应于宽带扩频通信系统的数字中频调制的实现方案,它基于正交调制、DDS、数字上变频和数字内插等技术,采用通用硬件平台,可以生成多种中频调制信号,可广泛用于数字化扩频通信电台、宽带CDMA、软件无线电、遥控遥测等通信系统中。 相似文献
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计算不同调制方式下的信道容量对实际通信系统的信道编译码设计具有重要的理论意义。首先从Shannon信息论出发,介绍了平稳无记忆连续信道与加性白高斯噪声信道容量的定义。接着利用互信息与微分熵的相互关系,推导了几种常用的不同调制方式下高斯信道的容量,并给出了相应的信道容量闭合计算表达式。通过将电力卫星通信信道模拟为高斯信道,对采用无速率信道编码联合不同调制方式的卫星通信进行了数值仿真。仿真结果显示,通过推导得到的闭合表达式计算信道容量,能对实际卫星通信的编码速率、译码启动条件的确定起到很好的理论指导作用。 相似文献
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随着指挥信息系统在全军的广泛运用,指挥方式由传统的"树状"改变为"网状"、"扁平状"。然而现通信部队在开展指挥信息系统训练、应用上还存在一定的短板,在提高整个部队的指挥能力上无法提供高效支持,文章对通信部队的指挥信息系统在实际运用上进行了初步分析,并指出了目前存在的不足,对如何提高通信部队利用指挥信息系统提高整体作战能力提出了对策和建议,对提高指挥信息系统在实际中的应用具有积极意义。 相似文献
39.
Xavier Font James Higham Graham Miller Shahab Pourfakhimi 《Journal of Sustainable Tourism》2019,27(1):1-11
In this editorial, we reflect on how the Journal of Sustainable Tourism can contribute towards sustainable tourism researchers achieving more impact with their research. We propose some changes that can be tested in, and introduced gradually and collaboratively with, the community of the editorial board and authors. To support impactful mind sets, we will promote research that reflects diverse academic communities. To promote impactful research topics, we will encourage authors to frame their submitted articles against the Sustainable Development Goals, while research that is time sensitive will be fast tracked so it can contribute to current debates. To promote impactful methodologies, we shall favour articles that use mixed methods and action research, and those that conduct longitudinal, experimental, and evaluative research. To promote impactful partnerships, we will favour multidisciplinary approaches and research that has been co-created with stakeholders. To promote impactful communication and dissemination, we will continue to build an online community on social media for sustainable tourism researchers, we will promote articles in social media to raise their visibility, and we will provide free access to those articles that are deemed to have the greatest potential to impact positively on society. 相似文献
40.
Bloggers in the postmodern era can influence the behaviour of consumers and alter their perceptions. The current study looks at the blogger influence phenomenon from a different theoretical perspective than existing literature did. By combining information behaviour and communication theory, it proposes a new conceptual framework by relying on the characteristics of the blogger, the blog content, motivation, and goals of information seeker. In this model, information seekers’ objectives and issue the involvement are important drivers of blog selection and determinants of the blog's influence. The framework was empirically tested in a sample of American users of beauty blogs. The results provide a confirmation of the postulated relationships. Three types of blog visits are identified and their effects and their attributes that make a blog influential are examined. 相似文献