I volunteer to define sufficiently large, and I say larger than 0 is sufficiently large. Why ? Because a big player can buy or control any smaller player, so if

I volunteer to define sufficiently large, and I say larger than 0 is sufficiently large. Why ? Because a big player can buy or control any smaller player, so if you want protection from the bigger ones, you need either to protect from everyone or change the way corporation work. I'd suggest going back to earlier times when corporations did not have the same rights as humans and were of public interest, or maybe remove the stock exchange, or limit gambling to banks' own money instead of using deposits.