Quote from trefoil:
You're right about booms & busts, but usury used to be illegal; generally speaking, no one could charge over 21%.
The problem was the usury laws were at the state level, which was fine before interstate banking became legal. Once it did, the usury laws were thrown out by the Supreme Court.
The solution, of course, is to ban this at the Federal level, but the bankers' and payday lender's lobby is too strong to allow that to happen. A large part of the reason our economy became so finance oriented in the run-up to 2008 had to do with usury no longer being illegal. A large part of the solution to making sure 2008 doesn't happen again is banning it federally.
I don't know, man, how much of the total debt outstanding has an interest rate over 21%? I doubt even 10% of it does. I think even revolving credit only averages 14-15% interest rates. Yeah, that's pretty steep but that debt is fairly risky, so obviously it's going to cost people more to use. And people's primary debt is their home and no way most people's mortgage is anywhere near the rates on their credit cards. So, I don't think that most debt outstanding would see any change in interest rates being charged even if you did bring back usury laws.
I think the reason that the economy became so finance-heavy is because that's where the US had a comparative advantage. Switzerland, Luxembourg and Lichtenstein have been finance-heavy for generations and they are amongst the wealthiest countries in the world. The problem is that model isn't scalable to a country of 300 million people, the vast majority of whom are idiots.