Actually, trading can and does increase the total value of the system. If I own $100 of Intel stock and you own $100 of AMD stock, exchanging half of our stock (so that we each own $50 of Intel and $50 of AMD) leaves us both better off, since we each have less risk.
Actually, trading can and does increase the total value of the system. If I own $100 of Intel stock and you own $100 of AMD stock, exchanging half of our stock (so that we each own $50 of Intel and $50 of AMD) leaves us both better off, since we each have less risk.