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151.
本文综述了政策与我国证券产业结构、行为和绩效作用路径方面的研究成果,将货币政策按照作用对象的不同分为两类,对这两类货币政策与证券业结构、行为和绩效进行格兰杰因果检验,进而提出了货币政策对我国证券业产业结构、行为和绩效的作用主辅线。 相似文献
152.
黑龙江省的城镇经济发展取得长足进步,深入分析促进经济增长的各变量贡献值有助于促进城镇经济更好更快地发展。本文在对黑龙江省1992~2013年统计数据处理的基础上,采用柯布-道格拉斯函数和索洛余值法对黑龙江省城镇经济发展中的技术进步贡献率进行测定,再结合着现实经济发展中存在的若干问题,给出实现黑龙江省城镇经济发展的若干建议。 相似文献
153.
现代化港口型城区的性质、特点及功能 总被引:1,自引:0,他引:1
港口型城区是近年来随着我国港口大规模建设和发展而日益兴盛的一种城市形态.由于大多数港口的刚性扩张,新港口、新港区建设方兴未艾,带动了港口后方的工业、商业和人口的集聚,由此形成了港口型城区,典型的如营口的鲅鱼圈、日照的石臼、上海的临港新城等. 相似文献
154.
一、品牌生命体假设品牌延伸就是为了增强市场的竞争力,提升品牌的价值力。要做到这一点,就必须充分考虑到品牌延伸对消费者心理认知的影响。只有了解了这一点,才能促成符合消费者意愿的良性购买行为,才能达到不断提升品牌。探讨品牌延伸对消费者心理认知的影响,我们首先把品牌 相似文献
155.
ARIMA计量技术下河南省农民增收的预测模型研究 总被引:1,自引:0,他引:1
笔者根据河南省1978年~2005年的农民人均纯收入统计数据,将这些数据进行平稳化、零均值化处理,并利用时间序列的自相关函数,偏自相关函数的性质,确认数据所适合的模型.通过对样本数据所做的回归拟合模型定量分析,从而为河南省"十一·五"规划提供量化指标依据. 相似文献
156.
推进我国科技产业发展,必须着力解决科技产业的融资问题.在增加各级财政投入、扩大企业自筹资金的基础上,采取各种方式,完善、扩展科技产业融资渠道.建立风险补偿机制,完善各项政策,加强法律法规建设,从而营造科技产业融资的良好环境. 相似文献
157.
为了建立基于饮片特征图谱预测瞿麦(石竹)配方颗粒质量指标的方法,探究瞿麦(石竹)配方颗粒质量与饮片特征图谱的相关性。利用特征图谱对瞿麦(石竹)原料中不同药用部位的化学成分进行表征,明确差异峰,统计15批饮片特征图谱中差异峰占总特征峰的峰面积比值(α值);同时依据国药瞿麦(石竹)配方颗粒标准对制备的15批饮片瞿麦(石竹)配方颗粒总黄酮含量、出膏率、浸出物含量等指标进行测定;采用Pearson相关性分析方法对饮片特征图谱中的α值与配方颗粒的总黄酮含量、出膏率、浸出物含量进行相关性分析,建立回归模型,并采用具有生产规模的6批瞿麦(石竹)原料、配方颗粒质量参数进行验证。结果表明:王不留行黄酮苷峰和皂草苷峰在饮片中不同药用部位的特征图谱存在相对峰面积差异,15批饮片中二者峰面积总和的α值为0.45~0.83;通过Pearson相关性分析发现,瞿麦(石竹)配方颗粒的总黄酮含量、出膏率、浸出物含量与α值呈显著正相关(P<0.01),总黄酮含量与α值极强相关,出膏率、浸出物含量与α值强相关;依据相关性建立的3个回归模型,所得R2均大于0.7,模型拟合度较高,通过6批数据的验证发现预测值和实测值的相对标准偏差均小于15%,说明模型有较好的准确性。研究利用原料特征图谱中的α值能够初步预测所得瞿麦(石竹)配方颗粒的各指标范围,并可实现源头控制瞿麦(石竹)配方颗粒质量,保证所得配方颗粒质量的可控性。 相似文献
158.
Jongmoo Jay Choi Connie X. Mao Arun D. Upadhyay 《Journal of Business Finance & Accounting》2013,40(1-2):239-271
This paper examines the financial and operational hedging activities of US pharmaceutical and biotech firms that are subject to a high level of information asymmetry stemming from R&D investments during 2001–2006. We find evidence in support of the information asymmetry hypothesis à la Froot, Scharfstein and Stein (1993) that hedging helps mitigate the under‐investment problem. Specifically, we find that the use of financial derivatives is associated with greater firm value and that the value enhancement is larger for firms subject to greater information asymmetry and better growth opportunities. There is a synergy between financial hedging and operational hedging where the latter is used to counter product development risk. The results are robust with respect to alternative performance measures, industry‐specific growth measures, and the endogeneity problem. Our work is differentiated from existing studies that examined commodity‐based industries without addressing information asymmetry. 相似文献
159.
针对油田在用井下采油筛管防砂过程中出现的砂堵等问题,依据能量转换原理,研制出一种辗辊式井下采油筛管。辗辊式筛管既防砂又不发生砂堵,还具有穿透性和节能效果明显等特点,不仅可用于一般的采油井、含砂量大和压裂的井,还可用于污水泵的保护。 相似文献
160.
These are testing times for labour-market policies in Indonesia. The country faces two major challenges in an unpredictable international and domestic environment: providing people with better, more secure jobs and raising productivity to help raise living standards and reduce poverty. Over the past several months, new global and domestic threats to economic growth have emerged and may hinder progress in jobs and productivity. In the longer term, the government is searching for new strategies to increase productivity, with a focus on supply-side investments in skills and training. In relation to events abroad, uncertainty has increased over the early initiatives taken by the new US president and his nationalist administration, such as the scuttling of the Trans-Pacific Partnership trade deal. At home, likely to be of some significance for economic policy are mass actions that were levelled against Jakarta’s governor but de facto also directed against the government. In the medium term, our assessment of the record of the Joko Widodo (Jokowi) government on the labour market is mixed. Over the past two years, growth has been slower than under the previous administration and hence job creation has also been muted. The experience of a handful of countries in Asia suggests that the government might have done more to stimulate economic growth and create jobs. The disappointing performance of manufacturing stands out. Yet inflation has fallen and the slide in the value of international trade—both exports and imports—has reversed in recent months. Improved fiscal management and a generally successful tax amnesty are other pluses. There was also an unexpected but considerable fall in unemployment in 2015–16, according to labour-force statistics. Some policies, such as the new approach to minimum wages, seem to have had beneficial effects for both business and the economy, and Indonesia has done well in some international rankings, such as the World Bank’s Ease of Doing Business index. However, the picture for the medium to longer term seems less bright for the labour market. There has been much talk about raising productivity by improving skills through government support for investment in training and apprenticeships, as well as by expanding vocational training along the lines of the German model. Expanding tourism is seen as one solution to the lack of employment for young secondary- and tertiary-educated jobseekers. But we have an impression of policy-making on the run; often, the argument for government intervention has not been made clearly enough. We argue that Indonesia still lacks a coherent, well-thought-out plan to increase jobs and productivity. 相似文献