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Table 5 Estimation of productivity as measured by the number of KCI papers

From: The impact of graduate students on research productivity in Korea

Variable Total Humanities Social sciences Natural sciences Engineering
Number of Graduate Students 0.002** (0.0001) 0.002 (0.001) 0.004** (0.001) 0.002** (0.001) 0.003** (0.0001)
lncen 0.008** (0.001) 0.018** (0.002) 0.013** (0.001) 0.001 (0.001) 0.007** (0.001)
lnpri 0.007** (0.001) 0.013** (0.004) 0.009** (0.002) 0.015** (0.002) 0.005** (0.001)
lninner 0.026** (0.001) 0.036** (0.001) 0.027** (0.001) 0.016** (0.001) 0.019** (0.001)
Gender(1 = Male) −0.043** (0.007) −0.036** (0.011) −0.039** (0.012) −0.079** (0.019) −0.015 (0.025)
Age 0.081** (0.003) 0.088** (0.005) 0.079** (0.005) 0.066** (0.008) 0.066** (0.006)
Age2 −0.001** 0.000 −0.001** 0.000 −0.001** 0.000 −0.001** (0.0001) −0.001** (0.0001)
Nation(1 = Domestic Doctorates) 0.025** (0.005) 0.008** (0.011) 0.011 (0.009) 0.063** (0.013) 0.030** (0.010)
NU(1 = National/Public Universities) 0.075** (0.006) 0.075** (0.012) 0.071** (0.010) 0.059** (0.014) 0.070** (0.010)
Region (1 = capital Area) 0.001 (0.005) 0.005 (0.010) 0.030** (0.009) −0.045** (0.014) −0.017** (0.011)
Intercept −1.500** (0.072) −1.744** (0.119) −1.315** (0.133) −1.263** (0.205) −1.213** (0.153)
  1. * p <0.05
  2. ** p <0.01