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This note contains a short biography of Professor Henri Theil and a brief sketch of his contributions to econometrics and related fields. Professor Theil is known as the author of the Principles of Econometrics , one of the most cited advanced textbooks of econometrics, and in particular made a large number of contributions including two and three stage least squares, the inequality coefficient, the Rotterdam model of consumer demand and the entropy based measure for income inequality.  相似文献   

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Abstract

The return accumulation approach used in studies on accounting-related anomalies cannot be replicated in a practical context because the number and identity of individual observations within a portfolio are assigned within a research context before the accounting information of all firms in the portfolio would actually be available in real time. We explore this issue by re-examining the results in Piotroski (2000) [Value investing: the use of historical financial statement information to separate winners from losers, Journal of Accounting Research, 38(supplement), 1?44]. We find that the relationship between Piotroski's fundamental signals and subsequent returns is partly driven by the choice of return accumulation periods. Because the method used in Piotroski is typical of those often employed in the accounting literature, this study suggests that evidence of profitable trading strategies and market inefficiency in the literature is likely to be overstated.  相似文献   

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中国转型期货币需求模型:1978—2000   总被引:1,自引:0,他引:1  
在理性经济人与货币市场均衡的假设前提下,本文将经济制度的转型予以定量化并纳入货币需求模型,运用岭回归方法进行参数估计。并且从货币流通速度来看,我们发现存在“超额货币”现象,本文对这一现象从制度转型的角度作了简要解释。  相似文献   

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We employ the original Card and Krueger (American Economic Review 1994; 84: 772–793) and Neumark and Wascher (American Economic Review 2000; 90: 1362–1396) data together with the changes‐in‐changes estimator to re‐examine the evidence for the effect of minimum wages on employment. Our study reconciles the controversial positive average employment effect reported by the former study and the negative average employment effect reported by the latter study. Our main finding, which is supported by both datasets, is that the controversial result remains valid only for small fast‐food restaurants. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   

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根据我国10个城市的中房指数推算各城市2000年-2008年期间的房价,利用国家城调队的城镇居民家庭收入和消费数据,计算各城市的房价收入比、住房可支付性指数、月供收入比,提出月供消费结余作为辅助判断指标,在此基础上分析各城市居民的住房支付能力,结果发现所有样本城市的房价收入比普遍较高,其中南京、武汉、深圳、成都和重庆五城市居民的住房支付能力比其他5个城市强,最后提出了相应的政策建议.  相似文献   

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2000版的标准发布实施,使得质量管理体系进一步发展。文章论述了实施ISO9001标准的关键,以及如何运用ISO9004标准保证企业质量管理体系的有效实施。  相似文献   

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裘敏达  于鑫州  张春牛 《价值工程》2010,29(31):261-262
报道了本文报道了1-(4-硝基苯基)-3-(4-硝基-噻唑)-三氮烯(NPNTT)的合成及其与铜的显色反应。在TritonX-100存在下,pH11.0的Na2B4O7-NaOH缓冲溶液中,该试剂能与铜发生显色反应,铜与NPNTT形成摩尔比为1:2型的配合物,在460nm处有一最大正吸收,在540nm处有一最大负吸收。以460nm为参比波长,540nm为测量波长进行双波长测定,表观摩尔吸光系数为2.68×105L·mol-1·cm-1,铜的浓度在0~480μg/L范围内符合比尔定律。用拟定方法测定人发中的微量铜,结果满意。  相似文献   

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ABSTRACT George R. Geiger, professor of Philosophy at Antioch College for fifty years, died March 19, 1998. He was a founding member of the editorial council of the American Journal of Economics and Sociology (1941-1998) and of the Antioch Review (1941-1998). He was also an advisor to and consulting editor of the Humanist (1955–59). He was the son of the founder of the Henry George School of Social Science of New York City and John Dewey's last doctoral student at Columbia University. Early on in his career he took up his father's cause, that of land value taxation; later he took up a defense of the contributions of his mentor, Dewey, and became in his own words a journalist of philosophy.  相似文献   

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中国2000~2010年金融体系脆弱性的分析与测度   总被引:1,自引:0,他引:1  
基于国家金融信息平台"新华08"2000~2010年中国金融监管当局和统计部门的数据,结合十年来中国实际经济运行状况和全球经济形势,在前人研究的基础上,本文对影响中国金融体系脆弱性水平的指标进行了选择,并且采用因子分析法做出了定量的测度.结果表明,十年中,中国金融体系脆弱性水平有了长足的改善,其中流动性风险逐渐减少,信用风险和外汇风险不断波动.基于此,本文给出了相应的政策建议.  相似文献   

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《Economic Outlook》1984,8(5):14-17
In this section we compare our forecast for the economy for the period 1984-7 with the outturn for 1980-3. Although 1983 was a year of low inflation and recovery of output, the last four years, which constitute the basis for the comparison, include the rapid inflation of 1979-80 and the very severe recession of 1980-1. It is not therefore surprising that, in the assumed absence of shocks, we expect the economy to perform better on virtually all counts in the next four years than it did in the last four.  相似文献   

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