Anyway, it’s an interesting result, all the same. I'm sure the marketers will be thrilled to discover that they could grab another 1.5% if they'd just use the proper type.
But this isn't the hill I want to die on, so I'm done posting on this one.
If you had a graph of phenomenon A and it matched exactly phenomenon B and the sampling was pretty large, you'd at least want to see if there was some causal relationship.
Definitely, you'd want to see -- and that would take more than a graph showing CORRELATION. That's because it's prefectly possible that phenomenon A causes a completely unmeasured phenomenon C, and it is phenomenon C that causes phenomenon B. You don't want to go around waving your correlation and raving about how A causes B, because you look kind of silly when phenomenon D shows up and independently wipes out C. Because then you've still got your A, but B doesn't come to the party, and you get discredited and loose your grant. It's also possible that A & B are results of some other cause C, and when D shows up and crushes A, you look silly again when B is still hanging around. Also, B might be the cause. And, even though these guys happen at the same place and time... they really might have absolutely nothing to do with each other.
So... let's repeat. Correlation does not imply Causality. Good.
The second thing that should be mentioned in conversations about the ‘global economy’ is that we’re all using currencies that are rarely pegged to any concretely traded commodity. Each currency is owned and regulated by a government, and the value of that currency floats on a certain amount of trust – basically the trust that the currency’s future value will continue to be what it basically is worth right now. Governments must, therefore, protect that value. They do it with tariffs, and trade agreements, and interest rates, and adding/removing actual currency, and all kinds of machinations that are dizzying to us, the mere mortals without advanced economics degrees. Allowing citizen’s ‘worth’ to flow without restraint to the best available price worldwide creates a problem because the currency is participating in supply and demand in a larger scope than the regulatory bodies controlling the currency. Let’s look at Greece to have a good example of where this kind of thing can cause problems (NOT saying that this is all bad, just pointing out that it’s not simple).
The Geo-IP blocking is a way to handle serious economic concerns with exposing end consumers to international markets. Basically, it forces the same geographic limitations that were always there. There may be better ways to do it, but just tearing down all the barriers is probably too reckless.