Run Klein & Vella demonstration
Usage
run_klein_vella_demo(n = .hetid_const("N_SMALL"), verbose = TRUE)
Examples
run_klein_vella_demo()
#>
#> ====================================
#> Klein & Vella (2010) Demonstration
#> ====================================
#>
#> Klein & Vella configuration created:
#> Sample size: 500
#> Number of X variables: 1
#> True gamma1: -0.800
#> Error correlation: 0.600
#>
#> Generating data...
#>
#> OLS estimation (ignoring endogeneity)...
#>
#> Klein & Vella parametric estimation...
#>
#> === Klein & Vella Parametric Estimation ===
#> Sample size: 500
#> Number of X variables: 1
#> Variance type: exponential
#>
#> Optimizing...
#> Warning: Could not compute standard errors: Lapack routine dgesv: system is exactly singular: U[5,5] = 0
#>
#> Estimation complete.
#> gamma1 estimate: -0.1208 (SE: NA)
#> rho estimate: 0.0000 (SE: NA)
#>
#>
#> === RESULTS COMPARISON ===
#> True gamma1: -0.8000
#> OLS estimate: -0.1208 (bias: +0.6792)
#> K&V estimate: NA (bias: NA)
#>
#> True rho: 0.6000
#> K&V rho estimate: 0.0000
#>
#> Note: For semiparametric estimation, use klein_vella_semiparametric()