> The argument was that it only takes one metric to convince a regular person to move No, this is not at all the argument I made. I was pointing out that built

> The argument was that it only takes one metric to convince a regular person to move No, this is not at all the argument I made. I was pointing out that built-in appetite for risk (or being a go-getter or whatever) is not the only explanation for why someone would come to the U.S. illegally. That the conditions in their home country shift the risk-reward equation so that more people are willing to immigrate than would otherwise. If everything were simply about appetite for risk (or being a go-getter), then you would expect immigration from Canada to take place at similar rates as immigration from Mexico (since incomes in the U.S. are significantly higher than in Canada). But you don't see that, because the delta between Canada and the U.S. is way smaller than it is between Mexico and the U.S., and so the risk/reward equation doesn't work out for nearly as many Canadians.