Let’s see; the US has an Ethnic Fractionalization score of 0.490100, a Linguistic Fractionalization score of 0.564700, and a Religious Fractionalization score of 0.824100. Cite
Canada has an Ethnic Fractionalization score of 0.712400, a Linguistic Fractionalization score of 0.577200, and a Religious Fractionalization score of 0.695800. Cite
So, you claim that the United States is more diverse than Canada, but that seems to be wrong. Whoops.
OK, let me provide that evidence. Here’s evidence that social mobility has decreased in the US. And here’s evidence that social mobility is lower in the US than in other countries. Since social mobility is the statistical measure of “opportunity,” I think we’re done here, yes?
The Fearon list used Encyclopedia Britannia data; Encyclopedia Britannica uses data from each nation’s statistics. In the case of the U.S. and Canada, those statistics are comparing very different things, race vs. ethnic origin.
Look at this chart, compiled from Canadian Census data from 2006, then look at this one, from U.S. Census data from 2010. They are not measuring the same thing, for instance, the U.S. counts it’s 72.4%-of-total population of white people as “white”; Canada whacks its 81.4%-of-population white people into ethnic origins by country. This gives the appearance of more diversity, but it’s not directly comparable. American white people have ethnic origins too, as do non-white Americans.
As noted, linguistics is a wash, and America is more religiously diverse.
I actually used Alesina’s tables (further down on the same page)
Your cite (Patsiurko) gives Canada an Ethnic Fractionalization score of 0.7463, a Linguistic Fractionalization score of 0.6299 , and a Religious Fractionalization score of 0.6079 (all for 1985). And for the United States, scores of 0.2637, 0.2047, and 0.7155
For 2000, the scores in Canada were 0.7261, 0.5920, 0.7041. For the United States in the same year they were 0.4707, 0.2514, 0.8262.
I would say that Canada is more diverse than the United States regardless of the measure used (ETA: this is certainly not my area of expertise, and I could easilly be misunderstanding the scores)
Alesina used the same source, just a different year’s edition:
Again, the issue is that Britannica uses official (government) sources, and the official data for the U.S. and Canada are measuring different things (race vs. ethnic origin). Patsiurko at least acknowledges this issue (in the passage I quoted previously), but it remains an issue with comparing the U.S. to Canada.
ETA: This isn’t to say that Canada is homogenous in the way that the Scandinavian countries are, but it’s not clear whether Canada is more or less diverse than the U.S., due to the aforementioned data issues. It’s certainly whiter, if nothing else.
Social mobility is not the statistical measure of opportunity. It measures homogenity, income inequality, and wealth. It contains too much noise to be useful as measure of opportunity.