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

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