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91.
刘爱英 《广西经济管理干部学院学报》2012,(4):104-108
对广西63家用人单位进行高职高专毕业生就业情况跟踪调查的结果表明:用人单位在对高职高专毕业生的职场表现给予肯定的同时,也指出高职高专毕业生存在的种种不足。在对调查资料进行分析的基础上,文章针对高职高专毕业生就业状况反映出来的问题提出改进意见,其目的是提高高职高专毕业生的就业质量。 相似文献
92.
In this study we investigate the external validity of the food insecurity and insufficiency measures—specifically, how these measures correlate with food expenditures—using the December 2003 Food Security Supplement of the Current Population Survey. We focus on a special segment of the population—households with low incomes and low food expenditures. If reports of food problems are based on a lack of food, reports should be nearly ubiquitous at the bottom of the expenditure distribution. We find, however, that this is not the case. We define and scale food expenditures several different ways and find that the reported incidence of food insecurity never rises above one‐half anywhere along the corresponding expenditure distributions, leading to concerns about the external validity of the measure. 相似文献
93.
《International Journal of Forecasting》2020,36(2):607-627
We analyze the relationship between forecaster disagreement and macroeconomic uncertainty in the Euro area using data from the European Central Bank’s Survey of Professional Forecasters for the period 1999Q1–2018Q4 and find that disagreement is generally a poor proxy for uncertainty. However, the strength of this link varies with the dispersion statistic employed, the choice of either the point forecasts or the histogram means for calculating disagreement, the outcome variable considered and the forecast horizon. In contrast, distributional assumptions do not appear to be very influential. The relationship is weaker in subsamples before and after the outbreak of the Great Recession. Accounting for the forecasters’ entry to and exit from the survey has little impact on the results. We also show that survey-based uncertainty is associated with overall policy uncertainty, whereas forecaster disagreement is related more closely to the expected fluctuations on financial markets. 相似文献
94.
介绍一种采用B/S与C/S相结合实现教务管理系统的方案,用面相对象设计和可跨平台、跨系统调用的WebService来架构该系统。 相似文献
95.
The effects of unit non-response on survey errors are of great concern to researchers.However, direct assessment of non-response bias in survey estimates is rarely possible.Attempts are often made to adjust for the effects of non-response by weighting, but thisusually relies on the use of frame data or external population data, which are at bestmodestly correlated with the survey variables. This paper reports the development ofa method to collect limited survey data from non-respondents to personal interviewsurveys and a large-scale field test of the method on the British Crime Survey (BCS).The method is shown to be acceptable and low cost, to provide valid data, and to haveno detrimental effect on the main survey. The use of the resultant data to estimatenon-response bias is illustrated and some substantive conclusions are drawn for the BCS. 相似文献
96.
程洁 《山西经济管理干部学院学报》2011,19(2):24-26
密切联系群众是我们党的最大优势。做好群众工作是构建社会主义和谐社会的需要。新的历史时期如何做好群众工作需要既注重解决好涉及群众利益的突出问题,又着力在建立健全群众工作的领导体制与工作机制上下工夫。 相似文献
97.
H. Young Baek 《Global Economic Review》2016,45(1):42-62
The economic theory of small firms often requires a reasoning process distinct from those typically used for large multinational enterprises (MNEs), since small firms typically do not possess the resources MNEs commonly employ to outperform similar domestic firms. In the current analysis, we argue that new small firms with international sales can better predict their revenue stream than can comparably aged firms with only domestic sales, and, as a result, international selling firms have higher levels of technical productive efficiency. We employ 7829 firm-year observations from the 2007 to 2011 years of the Kauffman Firm Survey microdata sample in our analysis. A stochastic frontier model empirically supports the result that technical productive efficiency is positively related to the foreign sales ratio. These results hold after controlling for multiple relevant owner and firm characteristics, as well as accounting for potential endogeneity concerns. 相似文献
98.
基于web的基因检测服务现状分析 总被引:1,自引:0,他引:1
芯片技术把数以万计的寡核苷酸以点阵的方式排列在固体介质表面, 实现了基因(组)的快速、高能量、敏 感和高效率检测。基因检测在一定程 度上可以预测疾病风险及个 体特性, 而将基因检测服务和无处不在的网络 平台相结合,则真正实现了个人遗传 信息(personal genetic information, PGI)快捷可读,实现了预防医学、IT 科技和商业的完美结合。通过互联网 进行基因检测服务销售与广告,将加 快实现基因检测服务商业化进程和推 动其快速发展。从而将基因革命和基 因检测服务推到一个全新的平台,即 基因检测服务电子商务化。这将在临 床疾病检测和健康监测等领域掀起一 股高科技消费热潮。 相似文献
99.
从2001年4月20日开始,中央电视台<中国证券>栏目每天早晨报道我国70家大券商关于当天股票市场涨跌情况的预测.通过对这些预测的研究,本文发现中国机构投资者的预测能力不强.他们的预测大都基于市场前一天的盈亏,近乎于正反馈反应.此外,本文还发现股市下跌对机构投资者的预测的影响比股市上涨大.本文认为,中国机构投资者预测能力不强的主要原因可能是缺乏经验. 相似文献
100.
基于Web的餐饮连锁经营管理信息系统的开发 总被引:1,自引:0,他引:1
餐饮连锁经营企业为参与世界范围内商业的竞争 ,必须通过计算机广域网连接分布在全国各地的连锁机构 ,以提高企业经营管理水平。基于Web的餐饮连锁经营管理信息系统的系统分析和系统设计 ,采用B/S结构和先进的开发工具对系统进行了开发 ,实践证明 ,系统具有一定的先进性、实用性、可靠性和安全性。 相似文献