Using the following command, no F-statistic is calculated since there are too many predictors compared to the number of clusters.
Since I have serial correlation, I need to use -robust-. Hence, I was advised to use the -bootstrap- command but I cannot seem to get the right command (see below). Can somebody, please help me with the command?
Code:
xtset country year, yearly
panel variable: country (strongly balanced)
time variable: year, 1995 to 2016
delta: 1 year
Code:
xtreg lnPATR1 l.lnPATR1 preelection lninflation lnunemployment lngdp lnurbanisation left right l
> ndependency lndependencyold lndependencyyoung lnpopbelow14 lnpop1564 lnpop65andabove eurozone eu
> lngovtexp lnwage plurality proportional lnpit lncorporate i.year, fe robust
note: lnpopbelow14 omitted because of collinearity
note: lnpop1564 omitted because of collinearity
note: plurality omitted because of collinearity
note: proportional omitted because of collinearity
Fixed-effects (within) regression Number of obs = 284
Group variable: country Number of groups = 19
R-sq: within = 0.6444 Obs per group: min = 11
between = 0.9165 avg = 14.9
overall = 0.8741 max = 18
F(19,18) = .
corr(u_i, Xb) = 0.6805 Prob > F = .
(Std. Err. adjusted for 19 clusters in country)
-----------------------------------------------------------------------------------
| Robust
lnPATR1 | Coef. Std. Err. t P>|t| [95% Conf. Interval]
------------------+----------------------------------------------------------------
lnPATR1 |
L1. | .6470617 .1161222 5.57 0.000 .403098 .8910255
|
preelection | -.0260988 .0140799 -1.85 0.080 -.0556796 .0034821
lninflation | -.0303619 .0132712 -2.29 0.034 -.0582436 -.0024802
lnunemployment | .0136915 .0240381 0.57 0.576 -.0368108 .0641938
lngdp | -.0012205 .0055211 -0.22 0.828 -.0128199 .0103789
lnurbanisation | .2404204 .3315709 0.73 0.478 -.4561843 .937025
left | .0379542 .0141276 2.69 0.015 .0082732 .0676352
right | .0174313 .0167837 1.04 0.313 -.01783 .0526925
lndependency | 1.085823 1.611522 0.67 0.509 -2.29986 4.471505
lndependencyold | -1.355576 3.590554 -0.38 0.710 -8.89905 6.187899
lndependencyyoung | -.5218162 .5123527 -1.02 0.322 -1.598229 .5545969
lnpopbelow14 | 0 (omitted)
lnpop1564 | 0 (omitted)
lnpop65andabove | .9734676 3.28618 0.30 0.770 -5.930541 7.877476
eurozone | .0104596 .0196805 0.53 0.602 -.0308877 .0518069
eu | .0068003 .0245451 0.28 0.785 -.044767 .0583676
lngovtexp | .0489781 .113025 0.43 0.670 -.1884787 .2864348
lnwage | -.0455026 .0575385 -0.79 0.439 -.1663865 .0753812
plurality | 0 (omitted)
proportional | 0 (omitted)
lnpit | -.0948315 .0984233 -0.96 0.348 -.3016111 .1119482
lncorporate | .0656962 .0402131 1.63 0.120 -.0187885 .1501808
|
year |
1998 | -.0192213 .0110746 -1.74 0.100 -.0424881 .0040456
1999 | .0022892 .0562731 0.04 0.968 -.1159361 .1205146
2000 | .054805 .0289899 1.89 0.075 -.0061005 .1157106
2001 | .0031405 .0342666 0.09 0.928 -.0688509 .075132
2002 | .0136341 .031938 0.43 0.675 -.0534653 .0807334
2003 | .0077036 .0366404 0.21 0.836 -.069275 .0846823
2004 | .0190082 .0449129 0.42 0.677 -.0753503 .1133666
2005 | .0163769 .0509766 0.32 0.752 -.0907209 .1234748
2006 | .019386 .0563142 0.34 0.735 -.0989257 .1376976
2007 | .03761 .0687671 0.55 0.591 -.1068642 .1820843
2008 | .0476016 .0761327 0.63 0.540 -.1123472 .2075504
2009 | .0077298 .0654582 0.12 0.907 -.1297928 .1452525
2010 | .0203046 .0678281 0.30 0.768 -.122197 .1628062
2011 | .0471105 .0738262 0.64 0.531 -.1079926 .2022136
2012 | .0290656 .0767886 0.38 0.709 -.1322613 .1903926
2013 | .0300476 .0759578 0.40 0.697 -.1295338 .1896291
2014 | .0041205 .0781119 0.05 0.959 -.1599866 .1682276
2015 | -.0090127 .0744997 -0.12 0.905 -.1655308 .1475053
|
_cons | -.9338671 2.828782 -0.33 0.745 -6.876917 5.009183
------------------+----------------------------------------------------------------
sigma_u | .12299845
sigma_e | .06524682
rho | .78039831 (fraction of variance due to u_i)
-----------------------------------------------------------------------------------
Code:
xtreg lnPATR1 l.lnPATR1 preelection lninflation lnunemployment lngdp lnurbanisation left right l > ndependency lndependencyold lndependencyyoung lnpopbelow14 lnpop1564 lnpop65andabove eurozone eu > lngovtexp lnwage plurality proportional lnpit lncorporate i.year, fe vce(bootstrap) cluster(cou > ntry) note: lnpop1564 omitted because of collinearity note: lnpop65andabove omitted because of collinearity (running xtreg on estimation sample) Bootstrap replications (50) ----+--- 1 ---+--- 2 ---+--- 3 ---+--- 4 ---+--- 5 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 50 insufficient observations to compute bootstrap standard errors no results will be saved r(2000);
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