Affiliation: | 1 Business Survey Methods Division, Statistics Canada, Ottawa, Ontario, K1A 0T6, Canada emmanuel.benhin{at}statcan.ca, 2 School of Mathematics and Statistics, Carleton University, Ottawa, Ontario, K1S 5B6, Canada jrao{at}math.carleton.ca, 3 Department of Statistics, University of Auckland, Auckland, New Zealand scott{at}stat.auckland.ac.nz |