Isn't this overstating it a bit?
There does appear to be a tendency towards monopoly/oligopoly. And once there, there seems to be remarkable stability, allowing for the emergence of new sectors, tech change. No matter the changes in faces and names: the overall structure pretty much remains -- automobiles, banking, steel and heavy industry, pharmaceuticals, chemicals...
The development of the IT software sector looks to me to be an excellent example of this (despite the wonderful tenacity of open source/free software) -- in compressed time, with some special features due to the need for inter-operability. And the push towards more and more restrictive IP legislation -- an attempt to obtain monopoly by fiat, if it can't be obtained in the economic and/or intellectual process.
kj khoo