上证综指对数收益率月度数据的特征分析
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上证综指对数收益率月度数据的特征分析
()1991.1-2014.9
目录
数据处理:收益率对数化 1.
数据导入:2.
对数收益率特征分析 3.
()简单描述性统计1
()平稳性检验2
()自相关性分析3
()损益的不对称性4
()分布的尖峰厚尾分析5
()波动聚集效应检验6
对数收益率可预测性分析 4.
()短期1
()中期2
()长期3
一、数据处理
Lnrt=ln(1+rt*)
其中为普通收益率rt*
二、数据导入
File—new—workfile
Dated-regular frequency; monthly
Object—new object—group—g1
三、对数收益率特征分析
()简单描述性统计 1 table or stats&—histogram stats statisticslnrt窗口--view—descriptive&tests80
LNRT Series:702014M091991M01Sample285Observations600.010218Mean50 0.006760Median 1.019664Maximum40-0.373282Minimum0.130937Dev.Std.30
2.438914Skewness21.00333Kurtosis204131.466Jarque-Bera100.000000Probability0
1.00.80.60.40.20.0-0.2-0.4.
0.01021Mean0.00676Median1.01966Maximum
-0.37328Minimum0.13093StdDev.2.43891Skewness
21.0033Kurtosis4131.46Jarque-Bera
0.00000Probability 2.91221Sum4.86901DevSuSq.28Observations gragh--line作图:view—LNRT1.2
1.00.80.60.40.20.0-0.2-0.4140002109804089294069612
)平稳性检验(ADF-test 2nonelevel—View—unit root test—
root unit LNRT Hypothesis:has aNull None Exogenous:maxlag=15)on SIC,basedLength:Lag0 (Automatic-
Prob.*t-Statistic-17.52336statisticDickey-Fuller0.0000testAugmented levelTest1%-2.573130criticalvalues:level5%-1.941945
level-1.61595310%
p-values*MacKinnoone-side(1996
EquatioTesAugmenteDickey-Fuller
D(LNRTVariableDependentSquareLeasMethod01:3TimeDate09/29/1
2014M01991M0Sampl(adjusted)adjustmentafteobservations28Include Errot-StatistiVariablCoefficienStdProb.
0.05941-1.04108-17.52330.000LNRT(-1)
va0.00013MeaR-squaredependen0.520394va0.18981dependen0.52039S.DAdjusteR-squared
criterioinfregressioAkaik0.13145S.Eo-1.216828criteriosquareresi4.89016-1.20398SchwarSumcriter-1.21167Lolikeliho o173.789Hannan-Quinn
1.99262Durbin-Watsostat
)自相关性分析:(ACF&PACF
336—level—correlogram—View
()损益不对称4作出分布图:view—gragh—distribution
偏度:见() 1 LNRT80
706050
yc n40eu qe30rF20100 1.2-0.20.00.8-0.40.20.41.00.6()尖峰厚尾5见分布特征、偏度、峰度、及检验结果J-B
()波动率聚集6Genr vt=lnrt^2
检验序列的自相关:ACF vt
相关系数检验
VT 1.2
1.0
0.8
0.6
0.4
0.2
0.0149206949610980800120204
相关系数
VT3VTVT2VT1 1.0000000.064741VT0.0498720.054298
0.0647410.049843VT11.0000000.0646720.0498720.064714VT21.0000000.064672
0.054298VT31.0000000.0647140.049843.
收益率可预测性分析
短期:、、、4
132 ar(4)ar(3)ar(2)ls lnrt c ar(1)是一样的lnrt(-4)lnrt(-3)lnrt c lnrt(-1)与lslnrt(-2)
LNRDependenVariable:
SquareLeasMethod:01:5Date09/29/1Time2014M01991M0Sampl(adjusted):
adjustmentobservations28afteInclude
iterationConvergencachieveafter ProbErroStdt-StatistiCoefficienVariable
0.1720.010181.369380.0074370.427AR(1-0.047300.05949-0.795159vadependenR-square0.00223Mea0.01019 vadependen0.13116-0.00130S.DAdjusteR-square
criterioAkaik0.13125S.Eo-1.21637regressioinf criterio-1.19067SusquareresiSchwar4.858053