Maybe my TCS background and dabbling in mechanism design has biased me, but it seems to be that truthfulness is a desirable property from the perspective of soc

Maybe my TCS background and dabbling in mechanism design has biased me, but it seems to be that truthfulness is a desirable property from the perspective of society: It would be beneficial to have a system that is designed in a way that allows participants to state their intentions and desires truthfully, without any incentive to lie. Auction theory is all about achieving that for simple, single round auctions. Why not redesign the stock market in a similar way as well? I suppose it could make for a nice PhD thesis (or several).