It's not that simple. Every holder of power acts to restrain challengers. If you allow monopolies, then innovation in that area slows drastically. When you have diverse centers of development, then development tends to be faster...but more expensive.
So if you want the most profitable companies, then you allow monopolies. If you want the fastest development, then you break up monopolies, of prevent them from ever arising...but this will make the companies less profitable (on the average).
Historically democracies have been more willing to break up monopolies. Right now, though, the US doesn't seem to be willing to do so. So now rapid development depends on competition between either countries or blocks of countries.