[redgolum]

Limiting who can buy and sell a stock, and the way in which they can do so. Say a stock trading license. Similar to paying someone for a hair cut.

Kind of funny how the license guilds work.

[amorphous]

If TPTB can't regulate it, they'll kill the retail or online buying and selling. After that, you'll require the services of a licensed broker if you want to trade.