Research Article
An Empirical Test of Alternative Theories of Educational Inequality
Table 2
Estimates of fixed effects models of productivity using Cobb-Douglas function.
| | | Fixed effects models | | | Model 1 | Model 2 | Model 3 | Model 4 |
| | Real capital | 0.1781*** (0.0269) | 0.1701*** (0.0268) | 0.1652*** (0.0268) | 0.1612*** (0.0269) | | Employment | 0.8959*** (0.0231) | 0.9095*** (0.0233) | 0.9077*** (0.0231) | 0.9027*** (0.0233) | | Year | 0.0134*** (0.0007) | 0.0100*** (0.0010) | 0.0131*** (0.0008) | 0.0169*** (0.0026) | | Years of schooling | | 0.6583*** (0.1697) | | −0.8463 (0.5562) | | Relative schooling | | | 0.2315*** (0.0507) | 0.4728** (0.1665) | | Experience | | 0.0060 (0.0566) | −0.0382 (0.0533) | −0.1033 (0.0683) | | Female (%) | | 0.0034 (0.0053) | 0.0032 (0.0053) | 0.0023 (0.0053) | | Black (%) | | −0.0001 (0.0016) | −0.0001 (0.0016) | −0.0001 (0.0016) | | Hispanic (%) | | 0.0006 (0.0012) | 0.0007 (0.0012) | 0.0006 (0.0012) | | Other race (%) | | −0.0001 (0.0008) | −0.0002 (0.0008) | −0.0002 (0.0008) | | Metro (%) | | 0.0758** (0.0282) | 0.0705* (0.0282) | 0.0680* (0.0282) | | Constant | 3.3039*** (0.1996) | 1.7077** (0.5518) | 3.7017*** (0.2583) | 6.2405*** (1.6882) | | R-squared | .988 | .989 | .989 | .989 | | Sigma u | .4023 | .3735 | .3733 | .3777 | | Sigma e | .1034 | .1025 | .1022 | .1022 | | Bic | −2193.908 | −2174.008 | −2180.135 | −2175.471 | | N | 1262 | 1262 | 1262 | 1262 |
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The year variable is linear and increments by one annually beginning in 1979.
*
P < 0.05, **P < 0.01, ***P < 0.001 (two tailed tests).
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