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Table 3 Production technology

From: Persistent and transient inefficiency in adult education

  Full sample Restricted sample
Variable Coefficient (SE) Coefficient (SE)
  (1) (2)
(Intercept) 0.180*** (0.018) 0.138*** (0.037)
log(y2/y1) 0.685*** (0.039) 0.769*** (0.049)
log(y3/y1) − 0.039*** (0.014) − 0.054*** (0.020)
log(x) 0.023** (0.012) 0.025* (0.014)
t − 0.000 (0.006) 0.010 (0.012)
\(\{ \log (y2/y1)\}^{2}\) 0.577*** (0.029) 0.574*** (0.037)
\(\{ \log (y2/y1)\}^{2}\) − 0.004 (0.003) − 0.000 (0.005)
\(\{ \log (x)\}^{2}\) − 0.006** (0.003) − 0.005*** (0.003)
\(t^{2}\) − 0.000 (0.001) − 0.001 (0.001)
log(y2/y1)*log(y3/y1) − 0.032** (0.013) − 0.023 (0.021)
log(y2/y1)*log(x) − 0.119*** (0.016) − 0.128*** (0.019)
log(y2/y1)*t − 0.002 (0.004) − 0.009*** (0.005)
log(y3/y1)*log(x) 0.011** (0.005) 0.013** (0.006)
log(y3/y1)*t 0.003*** (0.001) 0.004*** (0.002)
log(x)*t 0.001 (0.001) 0.001 (0.001)
  1. Notes ***Significance at the 1% level; **Significance at the 5% level; *Significance at the 10% level