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Table 8 Production functions, cross-sectional and pooled estimates full sample dependent variable: log output per worker

From: Do high-skill immigrants raise productivity? Evidence from Israeli manufacturing firms, 1990-1999

  1993 1993 1997 1997 Pooled, 1993-1997 Pooled, 1993-1997
Share immigrants -0.044 (0.054) 0.022 (0.055) -0.034 (0.038) 0.008 (0.033) -0.034 (0.033) 0.022 (0.029)
Log capital per worker 0.165** (0.012) 0.242** (0.018) 0.201** (0.019) 0.278** (0.024) 0.182** (0.012) 0.245** (0.015)
Log materials per worker 0.517** (0.015) 0.465** (0.018) 0.472** (0.020) 0.424** (0.020) 0.497** (0.014) 0.453** (0.014)
Log employment 0.042** (0.008) 0.041** (0.007) 0.048** (0.009) 0.042** (0.008) 0.044** (0.006) 0.040** (0.006)
Log R&D expenditures 0.048** (0.009) 0.018** (0.009) 0.026 (0.026) 0.019 (0.025) 0.039** (0.011) 0.011 (0.010)
1 if no R&D -0.183** (0.028) -0.096** (0.028) -0.176** (0.052) -0.059 (0.063) -0.178** (0.027) -0.066** (0.031)
Region dummies Yes Yes Yes Yes Yes Yes
3-digit industry dummies No Yes No Yes No Yes
N 2087 2087 1421 1421 3508 3508
R2 0.863 0.895 0.850 0.890 0.855 0.887
Implied production function parameters
α 0.165** (0.012) 0.242** (0.018) 0.201** (0.019) 0.278** (0.024) 0.182** (0.012) 0.245** (0.015)
β 0.517** (0.015) 0.465** (0.018) 0.472** (0.020) 0.424** (0.020) 0.497** (0.014) 0.453** (0.014)
γ 0.359** (0.017) 0.334** (0.016) 0.374** (0.020) 0.340** (0.021) 0.365** (0.013) 0.341** (0.013)
μ -0.123 (0.150) 0.067 (0.164) -0.092 (0.102) 0.023 (0.097) -0.092 (0.089) 0.066 (0.086)
  1. Note: Entries in the table represent weighted least squares coefficients, where the weights are the CBS sampling weights. Robust standard errors in parentheses.
  2. *: Statistically different from 0 at the 10% level.
  3. **: Statistically different from 0 at the 5% level.