Table 1 Simulation Mean Square Errors (SMSEs) and Efficiencies (SEFFs) of Estimating Q_y(τ|x),m=100,n=100,N=6.

SMSE(Q_R(τ|x))

22.091

26.632

28.982

42.725

73.340

SMSE(Q_LP(τ|x))

8.160

9.667

11.074

15.080

23.734

SMSE(Q_D(τ|x))

5.161

6.630

6.552

8.850

11.596

Efficiency

SEFF(Q_LP(τ|x))

2.7072

2.7449

2.6171

2.8332

3.0901

SEFF(Q_D(τ|x))

4.2804

4.0169

4.4234

4.8278

6.3246