That's a classic arbitrage strategy. It works. The only reason that traditional "big" finance isn't doing it yet is that Bitcoin is too small/new. As for ris

That's a classic arbitrage strategy. It works. The only reason that traditional "big" finance isn't doing it yet is that Bitcoin is too small/new. As for risks: http://en.wikipedia.org/wiki/Arbitrage#Risks http://en.wikipedia.org/wiki/Arbitrage#Risks