Quoted in the article:

Middle-income Canadians (who have individual salaries roughly in the $40,000-to-$70,000 range) have about an even chance of seeing their children slide down or up the income scale – it is hard to predict how the kids will turn out, and that anxiety is central to the middle-class experience. Low-income Canadians (earning $23,000 or less) are somewhat more likely to see their kids stay in poverty. But the top 1 per cent really stand out: They are subject to what Dr. [Miles] Corak calls the “intergenerational cycle of privilege” – they have a greater chance than any other Canadian group, better than 50 per cent (and probably much higher), of seeing their kids end up in the same income category.