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計(jì)量經(jīng)濟(jì)管理學(xué)及財(cái)務(wù)知識(shí)課程案例分析(完整版)

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【正文】 Log likelihoodDurbinWatson statProb(Fstatistic)Dependent Variable: WJMethod: Least SquaresDate: 01/06/10 Time: 21:49Sample: 1953 2006Included observations: 54VariableCoefficientStd. ErrortStatisticProb.也就是說財(cái)政支出與文教支出的增量間不存在長(zhǎng)期均衡關(guān)系。Mean dependent varAdjusted RsquaredAkaike info criterionSum squared residHannanQuinn criter.FstatisticProb.*Augmented DickeyFuller test statisticTrace test indicates 2 cointegrating eqn(s) at the level* denotes rejection of the hypothesis at the level52這兩個(gè)因素對(duì)文教支出增長(zhǎng)率的作用都是正向的。而且,它們的影響大小基本相等。52GDP does not Granger Cause WJ我們可以初步推斷出文教支出必然會(huì)隨著國(guó)內(nèi)生產(chǎn)總值的增加而增加。At most 2**MacKinnonHaugMichelis (1999) pvaluesUnrestricted Cointegration Rank Test (Maximum Eigenvalue)HypothesizedMaxEigenNo. of CE(s)EigenvalueStatisticCritical ValueProb.**None *得到結(jié)果如下:表12:Johanson檢驗(yàn)結(jié)果在EVIEWS中的表達(dá):Date: 01/06/10 Time: 22:03Sample (adjusted): 1955 2006Included observations: 52 after adjustmentsTrend assumption: No deterministic trendSeries: WJ GDP CZZC殘差序列平穩(wěn)。HannanQuinn criter.FstatisticAkaike info criterionSum squared residMean dependent varAdjusted Rsquared建立含常數(shù)項(xiàng)的協(xié)整回歸模型:得到如下結(jié)果:表10:d_gdp與d_wj以及d_czzc協(xié)整回歸結(jié)果Dependent Variable: WJMethod: Least SquaresDate: 01/06/10 Time: 21:56Sample: 1953 2006Included observations: 54VariableCoefficientStd. ErrortStatisticProb.DurbinWatson statProb(Fstatistic) 求出其殘差序列,并對(duì)其進(jìn)行ADF檢驗(yàn),檢驗(yàn)采用含常數(shù)項(xiàng)的10階之后的ADF模型建立如下:零假設(shè)為,結(jié)果如下表所示:表9:d_gdp與d_wj協(xié)整殘差序列的單位根檢驗(yàn)Null Hypothesis: RESID02 has a unit rootExogenous: Constant, Linear TrendLag Length: 1 (Automatic based on SIC, MAXLAG=10)tStatisticSchwarz criterionLog likelihood. dependent var. of regressionCCZZCRsquared這意味著序列g(shù)dp與wj存在協(xié)整關(guān)系。 接受H0,不平穩(wěn)d_wj (2 dif) 接受H0,不平穩(wěn)d_czzc (level) 接受H0,不平穩(wěn)d_czzc (1 dif) 接受H0,不平穩(wěn)d_czzc (2 dif) 拒絕H 1,平穩(wěn)可見,d_gdp(國(guó)內(nèi)生產(chǎn)總值)與d_czzc(財(cái)政支出)都是二階差分平穩(wěn)變量,而d_wj(文教支出)的二階差分仍然未平穩(wěn),但結(jié)果接近。Test critical values:1% level5% level10% level表5: 2 differences條件下gdp單位根檢驗(yàn):tStatisticHannanQuinn criter.FstatisticAkaike info criterionSum squared resid+08Mean dependent varAdjusted RsquaredProb.*Augmented DickeyFuller test statistic圖15 文教支出的Q檢驗(yàn)顯然文教支出(wj)的自相關(guān)函數(shù)帶有拖尾性質(zhì),而偏相關(guān)函數(shù)具有截尾性質(zhì),我們可以斷定該支出是非平穩(wěn)序列,顯然P這里等于2或3,為此,我們對(duì)A(P)模型進(jìn)行一階差分,另外從實(shí)證來看,方程系數(shù)的T檢驗(yàn)除了常數(shù)外,其他效果良好,因此我們考慮放棄常數(shù),得到新方程:圖16 文教支出一階差分b此時(shí),我們觀察該方程的殘差,發(fā)現(xiàn)其還比較平穩(wěn),見下
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