Step 2:进行二次回归 . poisson patcw Lc Lc_2 $Xex Poisson regression Number of obs = 354 LR chi2(39) = 2804.51 Prob > chi2 = 0.0000 Log likelihood = -734.48398 Pseudo R2 = 0.6563 --- patcw | Coefficient Std. err. z P>|z| [95% conf. interval] ---+---...
yend = x[:,1]yend.shape = (len(hr90),1) fp89 = db.by_col("FP89")q = array(fp89)q.shape = (len(fp89),1) #Error Hom model with endogeneity - defaultreg2 = ps.spreg.GM_Endog_Error_Hom(y,xex,yend,q,w,name_y="HR90",name_x=["RD90"],name_yend=["UE90"],name_...
yend = x[:,1]yend.shape = (len(hr90),1) fp89 = db.by_col("FP89")q = array(fp89)q.shape = (len(fp89),1) #Error Hom model with endogeneity - defaultreg2 = ps.spreg.GM_Endog_Error_Hom(y,xex,yend,q,w,name_y="HR90",name_x=["RD90"],name_yend=["UE90"],name_...
这一步,我们可以通过画出 与水平线 的图像,来更加形象化的看到 [外链图片转存中…(img-Xexfgs3V-1640317583287)] 值在什么水平范围之内。 当[外链图片转存中…(img-1I6jQ18R-1640317583288)] 取值分别为10%、5%与1%时,对应的值分别为:6.53、7.35和10.59。 双门限面板模型 Step 1: Estimate single threshold ...
Jondrow,Materov,Lovell,andSchmidt(1982)provideonemeasureTEi=1一7篇:灯Xexpei+处吃),whereq=Inyi工角areinlogformand=(7(17)Z;V2兀2.wheres+1foraproductionfrontierands=1foracostfrontierfrontieryxlx2x3,cost.InSTATA:frontieryxlx 17、2x3TheNormal-Exponentialmodel(visNormal,uisExponential):InC=、Jln...
reg lnusq edu exp expsq 1 h lnzwageh 1 1xh 2 xeduh 3 xexph 4 xexpsqh 1234 ,x x x x Stata软件操作实例软件操作实例 即即 (6) 式式 (注意:这是一个过原点回归注意:这是一个过原点回归)。 (同方差模型同方差模型) gen z=lnwage/sqrt(h) gen x1=1/sqrt(h) gen x2=ed 47、u/...