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. 2014 May 5;111(20):7242–7247. doi: 10.1073/pnas.1317967111

Table 2.

Regression results for models 4–6

Variables Model 4 (GOV = PA) Model 5 (GOV = ESI) Model 6 (GOV = EPI)
Log(AOHA) −0.709§ (0.154) −1.780§ (0.309) −1.308§ (0.192)
Log2(AOHA) 0.070§ (0.016) 0.246§ (0.047) 0.168§ (0.025)
Log(POP) 0.339 (0.410) 0.276 (0.426) 0.198 (0.400)
Log2(POP) 0.036 (0.016) −0.009 (0.015) 0.026* (0.015)
Log(GDPC) 42.825§ (7.139) 47.461§ (7.172) 38.492§ (7.062)
Log2(GDPC) −5.680§ (0.941) −6.314§ (0.944) −5.115§ (0.931)
Log3(GDPC) 0.249§ (0.041) 0.278§ (0.041) 0.225§ (0.041)
Log(EX) 0.082* (0.042) 0.069 (0.043) 0.083 (0.040)
Log2(EX) −0.005 (0.006) −0.004 (0.006) −0.006 (0.006)
Log(PEDS) −0.123 (0.060) −0.050 (0.060) −0.100* (0.058)
Log2(PEDS) 0.006 (0.015) −0.002 (0.015) 0.006 (0.014)
Log(AVA) −0.020 (0.046) −0.009 (0.047) −0.029 (0.044)
Log(PEDS) × log(AVA) 0.052 (0.017) 0.034 (0.017) 0.044 (0.016)
GOV × AOHA −0.00003§ (0.000005) −0.00009§ (0.00002) 0.00006§ (0.000008)
Constant −110.699§ (17.961) −111.576§ (18.824) −93.523§ (18.159)
Adjusted R2 0.997 0.997 0.997
Log-likelihood 390.926 384.92 397.418
Pr > F 0.000 0.000 0.000
Hausmann 86.55§ 75.11§ 97.26§
LM 159.76§ 165.85§ 54.32§
AIC −3.106 −3.050 −3.167
Preferred model Two-way FE Two-way FE Two-way FE

Dependent variable: log(AL); *10% s.l.; 5% s.l.; 1% s.l.; §0.1% s.l. s.l., significance level.