I was thinking that, because the market created value, it couldn't be zero or negative sum. Now I realize that it's negative sum within the scope of the market itself, even though it may create value in a grander scheme of things.
To truly understand the implications of game theory applied to the financial markets, you should look up the concept of Pareto improvements and Pareto optimums.
Good call. My roommate and I are about to start an econ discussion site. Shoot me an email if you're interested in helping us get conversation started or just have any suggestions for us.
