Quote Originally Posted by Doomer View Post
It suggests that both sides should spend resources on learning the language of the opposite side. I found this economically unnecessary.
I agree. That's why I think options 2 and 3 (which I personally endorse) are equally good from the economic perspective. However, moving forward from point 1 requires some coordination of efforts, won't you agree? I mean, in my example, if both French and Kaluli would speak, say, Portuguese, it would enormously speed up the business integration, but what would make them both learn Portuguese?