iest: IEE estimates
[1] -0.668883799 -0.114290214  0.002178222  0.327053587  0.638420210

est.rho: CL1 estimates
[1] 0.1961806

est.rho: CL1 likelihood
[1] -576.3387
ws=parameter estimates
[1] -0.667616383 -0.113370705  0.002173311  0.325631500  0.638293701

acov: inverse Godambe matrix with W based on first-stage wt matrices
             [,1]          [,2]          [,3]          [,4]          [,5]
[1,]  0.358986754 -0.0735233603 -2.191246e-03 -0.0870383826 -1.386892e-02
[2,] -0.073523360  0.0330117934  3.418497e-04  0.0037146983  4.348861e-03
[3,] -0.002191246  0.0003418497  3.351194e-05  0.0002668299  3.243340e-06
[4,] -0.087038383  0.0037146983  2.668299e-04  0.0410950081  4.085999e-04
[5,] -0.013868920  0.0043488610  3.243340e-06  0.0004085999  2.547611e-02

se: robust standard errors
[1] 0.599155033 0.181691479 0.005788949 0.202719037 0.159612384

res: Weighted scores estimates and standard errors
               se
[1,] -0.668 0.599
[2,] -0.113 0.182
[3,]  0.002 0.006
[4,]  0.326 0.203
[5,]  0.638 0.160
