The Official Journal of the Pan-Pacific Association of Input-Output Studies (PAPAIOS)
Variable | Parameter | Ordinary least squares | Maximum likelihood estimate | ||
---|---|---|---|---|---|
Coefficient | t-ratio | Coefficient | t-ratio | ||
Intercept | \( \beta_{0} \) | 6.85 | 8.43*** | 13.21 | 72.79*** |
LnArea | \( \beta_{1} \) | 0.17 | 1.64 | 0.05 | 0.36 |
LnDAP | \( \beta_{2} \) | 0.14 | 1.01 | 0.13 | 2.62** |
LnUREA | \( \beta_{3} \) | 0.05 | 0.42 | − 0.05 | − 0.72 |
LnODE | \( \beta_{4} \) | 0.19 | 2.93*** | 0.16 | 3.54*** |
LnMDE | \( \beta_{5} \) | − 0.08 | − 1.26 | − 0.038 | − 3.11*** |
LnSD | \( \beta_{6} \) | 0.18 | 2.04** | − 0.515 | − 5.97*** |
Inefficiency effect model | |||||
Constant | 18.29 | 8.28*** | |||
Age | − 8.32 | − 7.21*** | |||
Educ | 0.05 | 0.23 | |||
HHsze | − 0.06 | − 0.27 | |||
Variety | − 0.28 | − 1.67* | |||
DAPtime | − 0.33 | − 1.45 | |||
Ureatime | 0.07 | 0.27 | |||
SDtime | − 0.06 | − 0.305 | |||
Soilcsn | − 0.14 | − 0.66 | |||
Freqcnt | 0.06 | 0.53 | |||
Trngprdn | 0.19 | 1.13 | |||
Trngmkt | − 0.099 | − 0.38 | |||
Credit | 0.075 | 0.41 | |||
Dismkt | 0.54 | 3.26*** | |||
TLU | 0.12 | 0.81 | |||
Off | 0.12 | 0.59 | |||
Variance parameters | |||||
Sigma-squared | \( \sigma^{2} \) | 0.37 | 6.51*** | ||
Gamma | \( \varGamma \) | 0.99 | 59,138,266*** | ||
Log likelihood function | − 121.34498 | − 91.273621 | |||
LR | 60.142728 | ||||
Return to scale | − 0.263 | ||||
Total sample size | \( N \) | 150 | 150 |