价值型投资在中国证券市场上的有力证据

本文给出了1994年至2005年间价值型投资在中国A股市场中的有力证据。Fama—MacBeth回归表明在中国A股市场中存在着显著的市盈率和市净率溢价，1994年至2005年中牛市和熊市的滚动策略显示了我国A股市场中的价值效应，并且风险和收益之间基本上呈现出收益大、风险大的特征。本文的实证研究结果将有助于中小投资者以及机构投资者的长期投资决策。     

长三角地区经济增长与环境污染再研究——基于分位数回归方法

运用刻画不同区段边际变化影响的分位数回归方法,对长三角地区经济增长与废水排放关系进行实证检验,得出以下结论:1)长三角地区废水染排放与经济发展呈现同步递增关系,环境库兹涅茨倒U关系在长三角地区并不成立;2)分位数回归分析表明,高收入水平对应相对低的边际排放,随着收入增加长三角地区废水排放增速放缓;3)产业结构、城市化、技术水平等对废水排放的影响随分位点增加呈现递减趋向。     

GOVERNMENT SIZE AND GROWTH: A REJOINDER

In our 2011 survey of the literature in the Journal of Economic Surveys on the effect of government size on economic growth in wealthy countries we find a relatively consistent pattern: An increase in government size by 10 percentage points is associated with a 0.5–1 percentage point lower annual growth rate. This conclusion is questioned by Colombier. In this rejoinder we present a rebuttal of Colombier's argument based on a detailed scrutiny of his own statistical evidence and regression results. Furthermore, we note that several new papers that have appeared since our original paper was published give support to our main conclusion.     

The effect of education on the minimum wage

This research shows for the first time that the level of education has a causal, negative effect on the minimum wage. I use 2SLS, with historical educational data as an instrument for the level of education in 2010, and I find that across the US states a one percentage point greater proportion of college graduates is associated with a real minimum wage that is lower by 1.5%–1.6%. Also, in order to control for state-level omitted variables, I regress the change in the minimum wage on the change in education and I find again a negative, and significantly at the 1% level, effect. Minimum wage is a policy that is chosen by governments according to voters’ preferences. The results of this research imply that when the level of education increases voters prefer a lower minimum wage.     

Trade credit in SMEs: a quantile regression approach

This article analyses the determinants of the trade credit in Spanish manufacturing small and medium-sized enterprises (SMEs) from a new perspective. Specifically, we focus on the relationship between trade credit and other relevance financial resources: bank credit and self-financing. For the first time in the literature, a quantile regression approach is used, which takes into account the heterogeneity of firms in different quantiles of trade credit distribution. Our results show that the relationship between trade credit and other financial sources presents dissimilarities, including differences in sign, on SMEs with different degrees of trade credit. Our findings help to clarify the confusing results achieved in previous research on this topic.     

开放式基金"赎回之谜"的实证检验

我国开放式基金是否存在"赎回之谜"以及存在的条件和范围尚无明确的结论.运用多元线性回归模型、面板数据模型和分位数回归模型三种方法对我国开放式基金"赎回之谜"进行检验,结果显示:分位数模型能够捕捉基金业绩对基金净申购率的非对称性影响,这是多元线性回归模型和面板数据模型无法实现的.通过将分位数模型和对应分析方法结合使用,发...     

Testing hysteresis effect in U.S. state unemployment: new evidence using a nonlinear quantile unit root test

We revisit hysteresis effect in the unemployment rate of each of the 52 states of the United States using nonlinear quantile unit root test over the period 1976M1–2016M7. Our results indicate that unemployment rate of the U.S. economy as a whole displays hysteresis effect over recessionary periods. Nineteen out of 52 states display hysteresis behaviour over the period 1976–2016. For the remaining 33 states, we find four types of behaviours. Some states display stationarity behaviour almost in all quantiles. Some display hysteresis over recessionary periods and in contrast some display hysteresis over expansion period.     

Re-testing Prebisch–Singer hypothesis: new evidence using Fourier quantile unit root test

The Prebisch–Singer hypothesis in economics asserts that over time the relative price of primary goods relative to manufactured goods should experience a downward trend. To test the hypothesis, we must first establish the unit root properties of the relative price term and then regress the stationary series on a trend term. We use the quantile unit root test which allows for both smooth unknown numbers and the form of breaks in the trend function through a Fourier function to show that the relative price of 23 out of 24 primary goods is stationary. However, the Prebisch–Singer hypothesis is supported only in half of the primary commodities.     

服务业发展与人均收入的关系:基于分位数回归的实证研究

利用118个国家和地区1980-2005年服务业发展和人均收入的非平衡面板数据,采用分量回归的方法,在Fuchs的基础上对两者的关系进行研究。结果发现,服务业就业比重和人均GDP之间存在着显著并且稳定的正相关关系,服务业就业比重随着人均GDP的增加逐渐提高,这与Fuchs研究结论相同;与Fuchs不同的是,本文通过分位数回归还可以看出人均GDP的需求效应在服务业发展的不同阶段的影响程度的变化。在服务业发展的较低阶段,人均GDP的需求效应对服务业发展的作用较大;在服务业发展的较高阶段,人均GDP的需求效应对服务业发展的作用相对较小。