There are dozens of stock index funds. Has that been unclear in this thread? I picked the S&P 500 for convenience.
But none of them have the characteristics of that one. Not coincidence.
Don't lose sight of the fact that market valuation around the world is well over $50 trillion.
No. It isn't. Look it up. It's 51 trillion. (That figure was from last year.) If you've got other data, feel free to post it.
You are correct, but the 2 trillion figure is, at least according to you, due to the fact that government bonds have such lousy returns. If they had invested in some sort of "good" investment, there would be much more than the current 2.4 trillion. Surely there would be at least 50% more than that. 3.6/51 is approximately 7%.
If you invested only in the S&P 500, you would have approximately 1/3 of the market cap of those 500 companies.(Thanks gdnp) If you invested only in American stocks, I was guessing 14%.
And it's not the US government that would own those stocks ... it would be the people of the US.
Look! Goalposts! (We really need a flying goalposts smiley.)
OK. That's not truly fair. Your preferred method has always been PRAs, but you were talking about how the trust fund could get better returns. If it's the trust fund, then it is the US government that owns the stocks. I don't want the US government owning measurable fractions of private companies, in the US or elsewhere, so whatever portion of SS contributions you leave in the trust fund are going to go back into the bonds.
However, let's look at what happens with PRAs.
First of all, let's not forget that I already have one. I can invest in it, tax deferred, right now. Of course, I still have to pay taxes, and I will still get benefits, so what you are really doing is letting people opt out of the Social Security system. I know you understand that, but we don't want any goalposts moving, so let's make sure that's a given. If it is, we can move on? What's wrong with PRAs as a voluntary Social Security substitute?
I assume you won't have government telling people how to invest, will you? At least, beyond very, very, minimal guidelines? I can use my PRA exactly how I would use my IRA today, right? I can't buy great art, but pretty much any securities, or savings accounts, are ok, right? If it's good enough for an IRA, it's good enough for a PRA.
Well, then, we are back to the same old problem we had before. What do we do about people who make bad investments and lose all of their money?
There are other problems, too, but I think that one covers it fairly well. The others are variations on two basic themes. One is that some people will do very badly and be left with little or nothing. The other is that the only way to try and avoid that would be to have the government dictate what investments to make. I assume any free market supporter would consider that a total disaster.
However, before leaving that topic, I want to just describe one more problem in slightly more detail. The Stock Market is like a casino that's loaded in favor of the players. Most people will win. However, there are still winners and losers. Who will be winners, and who will be losers? That's a bit difficult to say, but in general, rich people are rich in part because they are good with money. Poor people are poor in part because they aren't. That means rich people are more likely to win, while poor people are more likely to lose. It doesn't seem like a good thing to force people into.
So, just so we don't lose sight of the core question, if you allow people to opt out, what happens to the people who opt out, and lose their money?