Publications and Preprints

Work on obtaining optimal main effect plans in non-orthogonal blocks was initiated recently by Mukerjee, Dey \& Chatterjee (2002), who gave a set of sufficient conditions for a main effect plan to be universally optimal under possibly non-orthogonal blocking and also suggested a construction procedure for obtaining such block designs. Their method is however, not applicable for all factorials. In this paper, a new construction procedure is given for situations where the procedure of Mukerjee et al. (2002) is inapplicable.