Because the rewards just aren't there. Amazon is a company started by some guy in a garage and less than 30 years later it is one of the richest companies in the world. Something like that just isn't going to happen in Europe - you'd be crushed by high taxes and regulation long before you reached that level.

Some Europeans will say that's actually a feature, not a bug. But look at what businesses are being started instead - neighborhood pubs and apartments for rent to tourists. Low-growth, low risk businesses with quick returns. What kind of jobs are these businesses going to create?