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121.
城市在区域间的竞争有重要的作用,无论是城市品牌的建立还是城市营销的开展,都以城市的核心竞争力为基础。文章以北京为例,对城市核心竞争力的特点以及如何培育核心竞争力进行研究。 相似文献
122.
123.
Petre Caraiani 《Empirica》2018,45(4):707-745
It is well known that southeast Europe is the least developed area in Europe. Using a methodology based on the idea of heterogeneous firms, this paper studies the degree to which firm heterogeneity and resource misallocation can explain the lower TFP in southeast Europe. The results show a significant degree of heterogeneity and resource misallocation, although the results are sensitive to the calibration used. There is evidence that firm-level productivity depends on firm size, while taxation negatively influences it. There is also some evidence that foreign-owned firms are more competitive, as are exporting firms. Results are generally robust across the various specifications used, but less so relative to the measure of productivity used. Additional evidence suggests that infrastructure-related obstacles as well as institutional instability drive the output distortion, while no factor is underlined as a significant driver of capital distortions, suggesting the need for better data sources for the latter. 相似文献
124.
The Baltimore Gas and Electric Company (BGE) undertook a dynamic pricing experiment to test customer price responsiveness
to different dynamic pricing options. The pilot ran during the summers of 2008 and 2009 and was called the Smart Energy Pricing (SEP) Pilot. In 2008, it tested two types of dynamic pricing tariffs: critical peak pricing (CPP) and peak time rebate (PTR) tariffs.
About a thousand customers were randomly placed on these tariffs and some of them were paired with one of two enabling technologies,
a device known as the Energy Orb and a switch for cycling central air conditioners. The usage of a randomly chosen control
group of customers was also monitored during the same time period. In 2009, BGE repeated the pilot program with the same customers
who participated in the 2008 pilot, but this time it only tested the PTR tariff. In this paper, we estimate a constant elasticity
of substitution (CES) model on the SEP pilot’s hourly consumption, pricing and weather data. We derive substitution and daily
price elasticities and predictive equations for estimating the magnitude of demand response under a variety of dynamic prices.
We also test for the persistence of impacts across the two summers. In addition, we report average peak demand reduction for
each of the treatment cells in the SEP pilot and compare the findings with those reported from earlier pilots. These results
show conclusively that it is possible to incentivize customers to reduce their peak period loads using price signals. More
importantly, these reductions do not wear off when the pricing plans are implemented over two consecutive summers. Our analyses
reveal that SEP participants reduced their peak usages in the range of 18 to 33% in the first summer of the SEP pilot and
continued these reductions in the second summer. 相似文献
125.
This paper takes up an argument from Ronald Rogowski about the “natural affinity” between trade and an electoral system with proportional representation. We draw on literature on the historical determinants of electoral system choice to advance the general argument that trade integration and PR are related because the adoption of PR helps to secure gains from trade. Our specific model of electoral rule changes in the age of globalization predicts that the likelihood of electoral rule change towards more proportionality increases with levels of trade integration in the world economy. The theoretical model draws on a micro model of the distributive effects of increased economic integration. Because more proportional systems are more credibly able to commit to compensate the losers of globalization processes, there will be increased demand to change the electoral system towards more proportionality under economic circumstances that increase the costs of maintaining a closed economy. In accordance with our model, our empirical tests find a positive association between (a) trade integration and the proportionality of the electoral system, (b) proportionality and social spending, and (c) global integration levels and the probability of electoral rules changes that render voting rules more proportional. 相似文献
126.
工序能力指数的新定义及其应用 总被引:1,自引:0,他引:1
于善奇 《世界标准化与质量管理》2007,(1):53-54
本文简述工序能力指数的传统定义及其不合理性,其根源是偏移系数的定义有缺陷。改进偏移系数的定义后,将使工序能力指数的定义更加科学、合理,进而给出不合格品率p与C_p、k之间的计算公式和常用数值表,供企业应用时选用。 相似文献
127.
依据决策过程理论,将业务外包划分为业务规划与选择、合同形成与签订、合同执行、外包结果评价四大阶段,并研究得出业务外包各阶段风险影响因素。基于四阶段决策过程,建立包含自律、合作和评判三大机制的分阶段风险规避模型,探讨涵括业务外包四阶段的全过程风险规避方法、步骤、措施、对策等。并从风险应对输入、风险应对控制及风险应对输出3个方面探讨了业务外包开发分阶段风险应对模型,为业务外包分阶段风险控制体系提供了重要补充。 相似文献
128.
由于在产品不同生命周期阶段市场竞争具有不同的特征,因此企业采取的市场战略也有较大的差别。应用物流系统的动态评价方法,研究了有效支撑企业产品市场竞争战略的物流系统应该具有的关键性特征,并在此基础上分析了如何组织企业内外部的物流资源,使得物流系统成本最小化的动态规划问题。 相似文献
129.
基于Web Services的企业应用集成技术研究 总被引:2,自引:0,他引:2
WebServices是一种面向服务的体系结构,它使用标准的XML协议,使得WebServices平台、语言和发布者能够互相独立,这是应用集成解决方案的一个理想的候选者。文章在分析了WebServices的体系结构和关键技术后,提出了一个基于WebServices的EAI集成框架,并对框架的工作原理进行了研究,该框架可以方便地用于各种已有的异构系统以及新开发的WebServices应用的集成。 相似文献
130.