The title is a unbelievable deceptive because, unless I missed something, all of these experiments were done on completely unregulated toy markets.

I would be curious about what would happen if, instead of rewarding people directly with the returns on their trades and their dividends, you gave them a baseline salary that they can never go under, then gave them a bonus based on a percentage the gained market value of their holdings during any particular round, but ended their game if they ranked below 50% of the other players for two rounds in a row then gave them severance equal to five times their baseline salary plus their average bonus per round over the entire game.

In short, I'd be interested in how far fiduciary investment bubbles would deviate from the bubbles produced by direct investors in these same safe markets, and whether changing any of the variables above could bring them closer together.