Comment A better (and simpler) solution .... (Score 1) 649
- If you are a bank that offers "essential" services, such as bank accounts, home loans, etc, you are not allowed to also participate in "risky" financial speculation practices (derivatives, shares, etc).
Forcing the separation of essential banking services from speculative practices is simple, and is not really that far from existing or previous legislation in various countries. It prevents the ridiculous situation where a government says they will underwrite the speculation of a private company, which is essentially the same thing as the government saying "Sure, have a great time at the casino. If you win you can keep the money, if you lose, we've got you covered."
Even better: start a government-owned organisation for essential banking services. The postal service is halfway there anyway, and goodness knows they could use the extra revenue.