Of course Disney benefited enormously from extended copyright. But what it does show is that long copyright terms are neither necessary nor sufficient for a Disney to appear and become successful, since the US at that time didn't have them.
What I don't understand is what finding a comparable media empire internationally would give you, since most of the world has the same copyright terms as the US, and so it wouldn't be helpful to judge the results of different terms.
What I don't understand is what finding a comparable media empire internationally would give you, since most of the world has the same copyright terms as the US, and so it wouldn't be helpful to judge the results of different terms.