[microDude]

I think about this all the time:

Would it be possible to change the anti-trust laws so that companies can not merge or be acquired if the sum of their assets and revenue exceeds a set dollar figure adjusted for inflation?

If A(assets + revenue) + B(assets + revenue) >= $, then not allowed to merge.

This will promote competition from upstarts and increase the efficiency of these companies by preventing them from gobbling up every new market.