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研究中习惯用回报/盈余关系来表示会计盈余的信息含量。通过A股的实证结果发现,当时间窗口为公告日前后60关时,回报/盈余关系较显著;盈余的持续性越高,回报/盈余关系越显著;非线性的模型比线性模型的解释能力更强。但是模型总体的R2水平都较低,这可能是由于研究方法的缺陷、市场的非理性、盈余本身信息含量低等原因造成的。 相似文献
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Utilising the latest large-sample data from a survey conducted in 2015 in China, we empirically estimated the impact of return migration on the mental health of children. Our results show that the experience of return migration has a significant negative impact on children’s mental health as measured by depression risk, self-esteem and resilience. 相似文献
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Sophie Xuefei Wang 《Review of Development Economics》2019,23(2):727-744
This paper examines the relationship between the migration of men from rural China and the educational attainment of their left‐behind children. The importance of migratory timing and duration are addressed. Using survey data, the study found that compared with rural children of nonmigrant parents, rural children of migrant fathers have a lower probability of being enrolled in school. In addition, the relationship between migratory timing, duration, and school enrollment shows an interesting pattern; children whose fathers migrated when they were infants are more likely to be enrolled in school, but children whose fathers migrated before their birth or after they reached school age are less likely to be enrolled in school. Possible explanations for this pattern are provided. 相似文献
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High skills pay off: the changing wage structure during economic transition in Poland 总被引:5,自引:0,他引:5
Jan Rutkowski 《Economics of Transition》1996,4(1):89-112
Economic transition turns the inherited wage structure upside down. Changes are rapid and dramatic. The Polish example shows that even in the first year of market-oriented reforms, there was a marked increase in earnings inequality, a dramatic rise in the wage premium for white-collar skills, and a significant jump in the returns to education. In contrast, skills acquired under the old system lost their value. It is younger workers who are rewarded with higher wages. The changes are spearheaded by the private sector, where inequalities and the educational premium are higher than in the public sector. Privatization, thus, has its social aspects in that it strengthens the incentive for human capital investment. This paper documents these changes and sets out possible explanations. 相似文献
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Aleida Cobas-Valdés Javier Fernández-Macho Ana Fernández-Sainz 《Applied economics》2017,49(37):3685-3700
This article analyses the conditional earnings distribution for Cuban immigrants in the USA considering Buchinsky sample selection in a quantile regression model. The test proposed by Huber and Melly to test the independence between error terms and regressors (conditional on the selection probability) is also considered. This is the first attempt in the migration literature to use quantile regression with sample selection. The data used come from the US American Community Survey. The results show that the hypothesis of conditional independence is not rejected, and increments in earnings associated with the usual socioeconomic characteristics in labour studies vary between the cohorts considered. The main conclusions are that a decline in returns from education may be a sign that a high level of education no longer provides a competitive advantage and that being a black person is associated with substantially lower earnings regardless of the individuals’ position in the earnings distribution. This may explain why, historically, comparatively fewer black Cubans have made the decision to emigrate to the USA because of a lack of economic incentives. 相似文献
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Exploring the duality between a return to dollar definition of profit and the generalized distance function we establish the relationship between the Laspeyres, Paasche and Fisher productivity indexes and their alternative Malmquist indexes counterparts. By proceeding this way, we propose a consistent decomposition of these productivity indexes into two mutually exclusive components. A technical component represented by the Malmquist index and an economical component which can be identified with the contribution that allocative criteria make to productivity change. With regard to the Fisher index, we indicate how researchers can further decompose the Malmquist technical component rendering explicit the sources of productivity change. We also show how the proposed model can be implemented by means of Data Envelopment Analysis techniques, and illustrate the empirical process with an example data set. 相似文献
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汶川地震灾区多数处于我国偏远的高山峡谷区,按传统的原地安置不仅成本高、时间长、工程浩大,而且灾民生计难以解决,有可能更加贫困化。顺应当前城镇化浪潮,探索城镇化移民方式,依据主体功能区划理论推动科学重建,以移民工程为主,重建工程为辅,统筹谋划未来人口分布、经济布局、国土利用和城镇化格局,逐步形成人口、经济、资源、环境相协调的空间开发格局。 相似文献
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随着供应链集中度的不断提高,企业管理层实施盈余管理的动机逐渐增强,使盈余信息的真实性和全面性降低,最终导致盈余透明度降低.本文选用供应商集中度和客户集中度两个解释变量作为供应链集中度的替代变量,以盈余激进度、盈余平滑度和透明度综合指数3个指标衡量盈余透明度,利用沪深A股制造业上市公司2010-2017年6104个供应商集中度的数据和7654个客户集中度的数据进行实证检验,研究供应链集中度提高影响企业盈余透明度的作用机制和影响程度.结果 发现:①就供应链整体来看,供应链集中度较高的企业虚增盈余和平滑盈余的动机较强,从而对盈余透明度产生显著的负面影响,且其虚增盈余的动机要高于平滑盈余的动机;②具体来看,供应商集中度较高的企业虚增盈余和平滑盈余的动机较强,而客户集中度较高的企业则更多的采用虚增盈余进行盈余管理;③在区分产权性质后,前两条结论仍然成立,但在非国有企业中表现得更为显著.此外还发现企业的盈余透明度并不受其规模大小的影响,而较高的经营风险则会增强管理层虚增盈余和平滑盈余的动机使企业的盈余透明度降低. 相似文献
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证券分析师的盈利预测在我国资本市场中扮演着越来越重要的角色。本文以2004~2006年被分析师预测的A股上市公司为样本,在控制盈余特征、公司规模及性质、行业和年度等因素的基础上,实证检验了机构持股比例和盈余管理动机对证券分析师盈利预测准确度的影响。研究结果显示:被分析公司机构持股比例的提高,将带来盈利预测准确度的提高;而当公司存在巨亏或微利的盈余管理动机时,分析师预测的难度增加,预测准确度降低。此外,分析师关注度及盈余特征对盈利预测也会产生影响。对公司进行跟踪的分析师越多,盈利预测的准确性越高,当公司发生亏损或收益下滑时,盈利预测准确性较差。 相似文献
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Yun Wang Yu Zhai Sisira R. N. Colombage 《Technology Analysis & Strategic Management》2020,32(3):349-362
ABSTRACTAs R&D activities are involved in inherent uncertainty of large investment, high risk and long return periods, earnings, as the main source of internal financing, have been a significant factor of R&D decision in the firms. In contrast to the previous research, this study investigates the impacts of firm’s earnings on R&D decision, in which earnings are measured by the indicators of earnings level, earnings quality and earnings persistence, while separating firm R&D activity into two stages of (i) the decision to undertake R&D activity and (ii) the amount to be invested on innovation activities. We document that earnings level can increase the probability of undertaking R&D activity, but has no effect on R&D investment intensity. Earnings quality and earnings persistence have a promotional effect on both stages of R&D decision. The empirical evidence of the subsamples shows that the impacts of earnings are heterogeneous across different ownership and technology-intensity firms. 相似文献
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信息技术投资对我国商业银行绩效的影响——从ATM的角度分析 总被引:1,自引:0,他引:1
回顾了国内外有关商业银行IT投资对其绩效影响的研究,在传统共谋假说验证模型的基础上,加入IT投资变量,并应用ATM安装数量作为IT投资的衡量变量,对我国银行业中有代表性的14家商业银行1995~2002年期间的数据进行了实证分析.结果表明,除了其它股份制商业银行ROA外,ATM投资对四大国有商业银行ROA、ROE以及其它股份制商业银行ROE都具有正面的影响,但在具体的影响程度上却存在着显著的差异.通过分析,本文认为,伴随着四大国有商业银行ATM投资进入平稳期,其对绩效的影响也会趋于平稳,而其它股份制商业银行随后将会加大ATM投资力度,其投资收益必然会不断增长,最终也趋于平稳. 相似文献
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A股上市公司的综合资本成本与投资回报--从内部报酬率的视角观察 总被引:9,自引:0,他引:9
本文根据中国股票市场的特点对Fama和French( 1 999)方法进行了适当调整 ,通过估计 1 990— 2 0 0 1年沪深A股非金融行业上市公司整体以及各行业的价值内部报酬率和成本内部报酬率 ,为市场整体及行业的资本成本与投资回报率水平提供了一种度量。本文发现相对于高速的经济增长 ,中国上市公司的价值内部报酬率偏低 ,该证据与中国股票二级市场的价格被严重高估以及上市公司的过度融资动机相关。制度环境是造成二级市场股价过高的主要原因 ,而二元股权结构使上市公司具有内生的过度融资动机。本文还总结了 1 990— 2 0 0 1期间上市公司融资决策和资本结构的若干特征 相似文献
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市场择时理论的中国适用性--基于1998~2003年上市公司的实证分析 总被引:9,自引:0,他引:9
自2002年Baker和Murgler明确提出市场择时理论以来,传统资本结构理论的解释力度受到一定程度的质疑,国外学者围绕这一新兴的资本结构理论展开激烈的争论.文章运用1998年1月1日~2003年12月31日间中国沪深两市IPO公司财务数据试图第一次较为全面地检验市场择时理论在中国的适用性.实证结果表明在样本期内中国上市公司确实存在着股票融资和债务融资的市场择时行为;债务融资的市场择时行为并不显著影响中国上市公司的资本结构,而股票融资的市场择时行为短期内显著影响公司的资本结构;股票融资的市场择时行为不具有持久影响资本结构的效应,总的说来,市场择时理论并不适用于中国的上市公司. 相似文献
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This paper presents results from a study of sexual prejudice and differentials in labor market outcomes due to sexual orientation. It uses data from a nationwide Swedish survey on public attitudes toward homosexuals, conducted in 1999, and combines them with register data for 2007, which include information about sexual orientation, employment status, and yearly earnings for the total population in Sweden. It finds that prejudice against homosexuals negatively affects the relative employment and relative earnings of gay men. Lesbians are affected negatively by prejudice against homosexuals in terms of employment, but the relationship is less clear in regard to earnings. Discrimination against homosexuals, as well as social norms, occupational sorting and self-selection in, geographic mobility are presented as explanations for the results. 相似文献
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长记忆性研究一直是金融实证研究的一个热点,但过去多数研究主要集中于资本市场。汇率收益率的长记忆性将影响外汇市场的有效性,汇率收益波动率的长记忆性则可能对汇率风险及汇率未来变化产生作用。基于此,本文选择人民币兑美元汇率、欧元兑美元汇率作为研究对象,运用经典重标极差分析法、重标方差分析法及小波方差分析法分别考察它们的收益率和收益波动率序列的长记忆性。研究结果表明:人民币汇率收益率存在长记忆性,而欧元汇率收益率不存在长记忆性;两种汇率收益波动率都存在显著的长记忆性特征,但人民币汇率收益波动率的非周期循环天数长于欧元汇率收益波动率。结论说明了欧元汇率发展的成熟以及人民币汇率形成机制的相对低效,并为追踪汇市行为特征及制定外汇政策提供了新的视角。 相似文献
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本文通过对新会计准则实施前后非金融类上市公司的盈余管理行为进行研究后发现,在新会计准则实施后,企业的盈余平滑行为增加了,并且更多地表现出为负的较小盈余通过一些利润操纵手段变成正的较小盈余的倾向。在用应计项进行盈余管理方面,企业在新会计准则实施后的平均可操纵性应计利润的绝对值明显大于新会计准则实施前。上述指标表明,新会计准则实施后,上市公司的盈余管理行为并没有减少,反而有所增加。本文期望通过这一结论为后续的会计准则改革和上市公司监管政策的制定提供一些参考。 相似文献
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In this paper, we estimate the threat effect of active labour market programmes (ALMPs) for a sample of unemployed men in Denmark. Threat effects of such programmes capture the impacts of a system of ALMPs prior to actual participation. Rational economic agents make search decisions based on the expected discounted value of unemployment, and the perceived risk of future participation in programmes may affect job‐search behaviour early in the unemployment spell. We find a strong and significant threat effect, which is shown to reduce average unemployment duration by two and a half weeks. 相似文献