TY  - JOUR
PY  - 1993//
TI  - Optimal estimation under biased allocation of treatments
JO  - Biometrika
A1  - Godambe, V. P.
A1  - Kunte, S.
SP  - 797
EP  - 806
VL  - 80
IS  - 4
N2  - SUMMARY This paper provides a semi-parametric solution to a problem proposed by Robbins & Zhang (1991). The solution is obtained utilizing the theory of optimum estimating functions (Godambe & Thompson, 1989). Our solution coincides with maximum likelihood estimation for the parametric model suggested by Robbins & Zhang (1991). Even for alternative models investigated in this paper, the efficiency of our estimation appears very close to that of maximum likelihood estimation.<p /> 
LA  - 
SN  - 0006-3444
UR  - http://dx.doi.org/10.1093/biomet/80.4.797
ID  - ref1
ER  -