The quandary is thus: How can a trained economist who learned (presumably) about proper statistical methodology, specifically the danger of biased sampling, move to make the national census a biased and thus useless dataset?
The answer: Stephen Harper is destroying the sample set because he is an economist. Good data most often refutes his ideology and the ideology of his base. Therefore the best way for Harper and his neoconservatives to retain power over the longterm is to destroy the dataset. As an economist, he knows exactly the best way to destroy the data. He’s probably been planning to destroy the census since his earliest days in the so-called National Citizen’s Coalition (which, once again, is none of the three).