Based on Wilcoxon rank sum test,variance ratio test and Fama-MacBeth regression method,this study finds that Chinese listed companies tend to issue new equity after information disclosure.
基于Wilcoxon秩和检验、方差比检验以及Fama-MacBeth回归方法的实证结果表明:我国上市公司倾向于在信息披露之后公告新股发行;我国上市公司发行公告前后两个定期报告皆具有信息含量,但发行公告之前的定期报告没有向市场传递更好的信息。
Using variance ratio test,this study examines the weak form efficiency hypotheses for China s commodity futures markets during 1999-2004.
随机游动模型的方差比率检验方法可以被用于检验中国商品期货市场的有效性程度。
A GENERALIZED VARIANCE-RATIO TEST FOR A HETEROSKEDASTIC REGRESSION;
异方差回归中的广义方差比检验(英文)
Wild Bootstrap Variance Ratio Test of Validity of Chinese Stock Market;
我国证券市场有效性的Wild Bootstrap方差比检验
A Variance Ratio Test on Chinese Stock Monthly Indixes;
沪深股市月股价指数变动的方差比检验分析
An Improved Sequential Probability Ratio Test Method for Residual Test
序贯概率比检验用于残差检测的一种改进方法
Variance Ratio Test for the Efficiency in China s Commodity Futures Markets;
中国商品期货市场有效性的方差比率检验
Differential Item Functioning: A Comparison of Methods Based on CFA and IRT;
检验项目功能差异的两类方法—CFA和IRT的比较
A SIMULATED COMPARATIVE STUDY OF SIGNIFICANCE T-TEST AND META-ANALYSIS;
差数显著性t检验与元分析方法的模拟对比
The Best Likelihood Ratio Test for Ratio of Variances from Two Independent Normal Populations
两正态总体方差的最佳双边似然比检验
alternate test for variance heterogeneity
非齐性方差的替换检验
A Modified Likelihood Ratio Test for Homogeneity in Normal Mixtures of Two Samples with an Unknown Variance
方差未知时两样本正态混合模型齐一性的修正似然比检验(英文)
Testing Serial Correlation and Heteroscedasticity in Partial Linear Models;
部分线性模型的序列相关检验与异方差检验
Testing of Variance Component in Two-nested Random Effect Model under Heteroscedasticity;
异方差的两级套模型的方差分量的检验
The simple factor analysis of variance and further statistical method of multiple comparison and independent exponent t-test were used.
运用单因子方差分析及进一步的多重比较、立样本t检验的统计方法。
The Estimators and Tests of Variance Components in Longitudinal Data Model;
纵向数据模型方差分量的估计和检验
Realizing the Test of Bartlett Homogeneity of Variance for N Population Variance in Excel;
在EXCEL中实现多总体方差的Bartlett齐性检验
Testing for Heteroscedasticity and Two-Step Estimation Based on Grouped Data;
基于分组的异方差检验和两阶段估计
Testing Heteroscedasticity by Wavelets in a Nonparametric Autoregressive Model
非参数自回归模型异方差的小波检验
The Research of Null Test of Conformal Windows
共形窗口像差特性与检验方法的研究