I think the first remedy should be prevent acquisitions after companies grow past certain size.

Google, Amazon, Facebook and Apple innovated at their own in the beginning, but once the cash from network externalities started to pour in, they stared to buy market share and buy into the markets. Google did not invent Gmail (Postini), Android Inc, YouTube, AdSense (Adscape), Google Analytics (Trendalyzer), Google Maps (Endoxon).